轮机英语大证考试模拟题(四)

轮机英语大证考试真题46期第46期轮机英语试题一、单项选择题1. In order to control thermal stresses ,some type of modern engines use piston with______.A. heavy wall and intensive coolingB. heavy wall and no coolingC. thin wall and no coolingD. thin wall and intensive cooling2. The average pressure exerted on a piston during each power stroke is termed______.A. indicated horsepowerB. mean effective pressureC. exhaust back pressureD. compression pressure3. The ignition quality of a diesel fuel is indicated by the ______.A. cetane numberB. volatility pointC. viscosity indexD. octane number4. A piston in a four-stroke/cycle diesel engine makes four strokes during each ______.A. crankshaft revolutionB. mechanical cycle of operationC. period of two combustion cyclesD. cycle of two events5. Crankshafts of medium speed engines are ______ from a single piece of steel.A. unusually solid weldedB. never be solid forgedC. almost invariably solid forgedD. almost invariably be welded6. The starting air entering the cylinder begins when the piston______.A. has nearly come to the TDCB. has just past the TDCC. has nearly come to the BDCD. has just past the BDC7. A main bearing consists of two shells which are secured by means of studs and ______.A. tie rodsB. through boltsC. lead wiresD. bearing caps8. Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of ______.A. less even torqueB. higher cylinder head temperaturesC. fewer power strokes per revolutionD. greater weight/size requirements9.______ controls the fuel oil temperature in order to provide oil at the correct viscosity for combustion.A. The viscosity regulatorB. The temperature controllerC. The flow meterD. greater weight/size requirements10. In a diesel engine lube oil system, which of the following parts should be lubricated first?A. Camshaft bearingsB. Main bearingsC. Piston crownsD. Cylinder walls11. A large, low-speed, main propulsion diesel engine uses sea water to directly cool the ______.A. cylinder headsB. exhaust valvesC. scavenging airD. injectors12. In a turbocharger, inlet air velocity is increased in the ______.A. inlet nozzle ringB. stationary diffuser passagesC. compressor outlet voluteD. rotating impeller vanes13. Each cylinder has one starting valve which is usually opened by air pressure and closed by______.A. nuts and boltsB. new jointsC. spring forceD. sealing rings14. In a simple mechanical governor, the ______.A. centrifugal force rotates the ball-headB. flyweight centrifugal force is balanced by spring forceC. flyweight centrifugal force is balanced by hydraulic pressureD. speeder spring alone actuates the fuel control rod15. A pyrometer is an instrument commonly used to measure ______.A. cylinder pressureB. flame intensityC. exhaust gas temperatureD. crankshaft axial alignment16. After starting a diesel engine, which of the listed operating conditions should be checked first?A. Air box pressureB. Lube oil pressureC. Exhaust temperaturesD. Raw water pressure17. A high temperature alarm or ______ which will melt is used to guard against the explosion of compressor air pipelines.A. a flame trapB. a relief valveC. a fusible plugD. a bursting cap18. What preventative maintenance should be done frequently to diesel engines starting air receivers?A. Drain the accumulated moistureB. Test the relief valvesC. Watch the temperature to prevent fluctuation in pressureD. Clean the interior to remove oil and foreign matter19. In reducing engine speed to an efficient propeller speed by the use of reduction gears, ______.A. speed and torque are both reducedB. speed is reduced and torque remains unchargedC. speed is reduced and torque is increasedD. speed is sometimes unchanged while torque is increased20. Which of the following statements concerning fire-tube boilers is correct?A. Combustion gases flow through the tubesB. Flames impinge on the tubesC. Combustion occurs in the tubesD. Water flows through the tubes21. The exhaust boilers are used to recover some of ______ carried in the exhaust gas from the main engine.A. waterB. oilC. heatD. steam22. The water level in a steaming auxiliary boiler will always ______.A. rise when the steam pressure is increasedB. remain constant as long as the feed pump operatesC. fall when the steam pressure is decreasedD. vary as the steam demand changes23. When lighting off an auxiliary boiler, which of the problems listed could cause the burners to sputter?A. Cold fuel oilB. Low fuel oil pressureC. Low atomizing steam pressureD. Water in the fuel oil24. If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause may be ______.A. high steam pressure in the boilerB. abnormally high feed-water temperatureC. abnormally high boiler water temperatureD. steam demand exceeding feed pump capacity25. Through a ______ pump, the liquid is transferred from the suction to the discharge by themechanical variation of the volume of a chamber or chambers.A. positive displacementB. ejectorC. centrifugalD. air compressor26. Sealing lines provide sealing liquid flow to the stuffing box of a centrifugal pump______.A. to prevent seawater from passing out the stuffing box when a high suction head is presentB. to cool the shaftC. in place of mechanical sealsD. in place of lantern rings27. Which of the valves listed will be cycled from fully open to fully close when the handle is turned 90 degree?A. A rising steam gate valveB. A globe stop valveC. A check valveD. A butterfly valve28. Centrifugal pumps, used to handle hot liquids, must havea minimum flow through them under all operating conditions. This flow serves to ______.A. prevent overheating and damage to pump rotating parts due to rubbingB. maintain the net positive suction head of the pumpC. maintain hydraulic differential in the pump impeller passagesD. purge the pump of non-condensable vapors and gases29. If you heard a …crankling ? noise in a centrifugal pump, the most probable cause of the problem would be ______.A. insufficient speedB. cavitationC. excess discharge pressureD. excessive net positive suction head30. In the process of ______, liquid changes into gas.A. evaporationB. frostingC. condensingD. compressing31. The device used for low-pressure control and high-pressure cutout on a compressor is called a ______.A. cutoutB. pressure controllerC. controller switchD. cutout switch32. A purge recovery system is used in central air conditioning or refrigeration system to ______.A. purge lube oil from the liquid refrigerantB. recover water purged from the systemC. separate foul gases from the receiverD. purge non-condensable gases without losing refrigerant33. In an air conditioning system, low head pressure associated with a reciprocating compressor can be the result of ______.A. broken valve springsB. tight drive beltsC. high line voltageD. air in the system34. When discharging bilge water over board, which criteria must be observed?A. The requirement for the oil content of bilge water discharged is under 15 ppmB. No discharge in sensitive watersC. Any discharge in sensitive watersD. International, national or local requirements have to be observed35. The following measures can be used to improve oily water separator?s separating effect except ______.A. overhauling every two yearB. working at intervalsC. renewing filtration materialD. properly heating36. Disposal of all kinds of garbage but ______ listed as below is prohibited whining Special Areas.A. comminuted or ground papers, rags, glass, metal etcB. plasticsC. food waste comminuted or groundD. Incinerator ash37. When does auxiliary burner of incinerator put into operation?Ⅰ、start incinerator when it is cold Ⅱ、little waste oil for dealing withⅢ、plenty of waste oil for dealing withⅣ、the water and impurity in sludge are too muchⅤ、the temperature in incinerator is lowⅥ、dealing with little solid rubbishA. Ⅱ+Ⅲ+ⅤB. Ⅰ+ Ⅱ+Ⅲ+ⅣC. Ⅰ+Ⅳ+Ⅴ+ⅥD. Ⅰ+ Ⅱ+Ⅲ+ Ⅵ38. Bacteria which live ______ are said to be aerobic.A. in the presence of oxygenB. without oxygenC. in the presence of nutritionD. without nutrition39. When centrifuging heavy fuel oil , an important factor to cons ider is (are) the ______.①flow rate②viscosity of the fuel oilA. ①B. ②C. ①②D. Neither ① nor ② are correct40. To ensure lube oil purifier working in normal condition, the interval between two sludge discharging should not exceed ______ hours.A. 2B. 4C. 5D. 641. ______ can not cause oil flow from water outlet of self cleaning purifier.A. Oil temperature too highB. Diameter of gravity disc too largeC. Oil temperature too lowD. High level tank out of water42. In the production of freshwater from seawater through a process of heating and cooling, the cooling phase of production is usually called ______.A. evaporationB. distillationC. dehydrationD. condensation43. Distilled water from an evaporator may be discharged into a potable water tank ______.A. through a detachable hose connectionB. after passing through an activated charcoal filterC. after chemical analysis shows it is fit for consumptionD. through a solenoid operated three-way valve44. What type of valve is used to direct the flow of hydraulic fluid?A. relief valveB. direction control valveC. stop valveD. pressure control valve45. Cargo handling unit is rated according to the ______ to be lifted.A. cargo craneB. jibC. safe working loadD. oil pressure46. The crane is usually mounted on a pedestal to offer adequate ______to the operator.A. timeB. spaceC. lengthD. visibility47. Proper internal lubrication of a hydraulic anchor windlass left idle for extended periods can be accomplished by ______.A. performing a check run on the unit at regular intervalsB. testing the hydraulic fluid for proper PHC. checking the reservoir for proper levelD. cleaning strainers at regular intervals48. ______ are used for hauling in or letting out the wires which fasten the ship to the shore.A. Cargo winchesB. Mooring winchesC. WindlassesD. Cargo hatches49. The major source of chemical contaminants in hydraulic fluid is ______.A. microscopic steel shavingsB. abrasive wasteC. anti-oxidant compoundsD. oxidation by-products50. If you install a new hydraulic hose in a hydraulic system , the hose must be long enough to allow for contraction to prevent______.A. failure of the hydraulic hoseB. excessive flow through the lineC. friction in other areas of the hydraulic systemD. overheating of the hydraulic fluid51. A circuit that has one wire in contact with the hull of the ship is a ______.A. series circuitB. grounded circuitC. short circuitD. closed circuit52. The frequency of an alternator at a given r/min is determined by the ______.A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage53. The operation of paralleling two alternators requires thevoltages to be _____and also in phase.A. zeroB. eliminatedC. differentD. equal54. The frequency of an AC generator is controlled by the ______.A. rheostatB. governorC. exciterD. capacitor55. A motor enclosure which protects against falling liquids is classified as ______.A. water-proofB. drip-proofC. spray-tightD. spray-proof56. ______ are supplied with electricity by main switchboard directly.A. Suez Canal searchlight, air compressor and air conditioning compressor.B. Air compressor, boiler blower and refrigeration plantC. Boiler blower, Suez Canal searchlight and refrigeration plantD. Suez Canal searchlight and boiler blower57. ______ is not installed on the emergency switchboard.A. AmmeterB. V oltmeterC. WattmeterD. Synchroscope58. When two D.C. generators operate in parallel, they are protected against motorizing by ______.A. blow out coilsB. governor relayC. under voltage tripsD. reverse current trips59. Moisture in a D.C. motor would cause ______.A. short circuitB. speed upC. slow downD.hunting60. The part of a fuse that melts and opens the circuit is made of ______.A. copper and antimonyB. steel and babbittC. aluminum or beryllium alloyD. zinc or an alloy of tin and lead61. The main purpose of an electric space heater installed ina large AC generator is to ______.A. prevent the windings from becoming brittleB. prevent moisture from condensing in the windings during shutdownC. prevent acidic pitting of the slip ringsD. keep the lube oil warm for quick starting62. Sparking at the brushes of a running motor could be an indication of ______.A. normal operationB. a dirty commutatorC. increased brush capacityD. water vapor absorption63. Prior to starting, the purpose of turning over a main propulsion diesel engine with the cylinder test cocks open , is to ______.A. test the starting systemB. remove condensation from the cylindersC. check the compressionD. check for proper lube oil pressure64. During the watch keeping at sea, _______ should be logged or recorded in the engine log book.A. the running hours of the cooling water pumpB. chief engineer’s orderC. the main parameters of main and auxiliary equipmentsD. the position of the vessel65. During ship maneuvering, when the diesel is stopped, which of the following items is wrong?A. keep all systems running normallyB. main engines is available bottle outlet valveC. shut off the starting air bottle outlet valveD. pay attention to the changes of the system parameters66. Which of the listed conditions can be considered as the single greatest cause of accidents?A. SpeedB. Excessive knowledge or skillC. Human errorD. Excitement67. On a tank vessel, which of the following substances would be burning in a class ‘B’fire?A. OilB. WoodC. RagsD. Electrical wiring68. The most likely place for a fire to start through the process of spontaneous combustion is in _______.A. an electrical switchboardB. the pressure tanksC. the fuel oil tanksD. the oily rag bin69. Which of the fire extinguishers listed is to be weighed annually and sent ashore for recharging is the weight loss exceeds 10% of the weight of a full charge?A. FoamB. Soda acidC. Dry chemicalD. Carbon dioxide70. While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take first?A. Secure the burners then proceed to your assigned boat stationB. Start the fire pump and establish flow to the fire mainC. Open the guardian valve and standby to maneuverD. Open the master control valves on the fixed CO2 system71. If there were a fire in the bunker tanks, you should _________.A. close the ventB. pump out the tankC. activate the fixed CO2 systemD. cut off the heating coils72. To avoid excessive surge pressure when bunkering , you should______.A. bunker at a normal rateB. check for kind in hoseC. close at a normal rateD. shut valves before topping off73. ______, where minor repairs are carried out with a ship in service, often during a stay in port. This may be remote from a ship repair site.A. Voyage repairsB. Routine dockingC. Damage repairsD. Conversion74. When is the dock survey carried out?A. During annual repairB. Usually during dock repairC. Before sea trialD. After 5 years from last annual survey75. In the initial survey, ______ compiles the survey report and fills in certificate.A. surveyorB. chief engineerC. Before sea trialD. After 5 years from last annual survey76. If an incorrect entry were made in the Oil Record Book, you should _______-.A. erase the entry and rewrite itB. notify the ship?s officer-in-chargeC. completely black it out and make the correct entry alongsideD. draw a single line through the wrong entry and initial it77. The International Oil Pollution Prevention Certificate isvalid for a period of ______.A. one year from the date of issueB. f ive years from the date of issueC. three years from the date of issueD. four years from the date of issue78. Which one is NOT the …clear grounds? for a more detailed inspection?A. no operation procedures for the oil separatorsB. engine log book missingC. the master and the chief engineer are unable to communicate effectivelyD. absence of an up-date muster list79. The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the _______.A. Navigation Log BookB. Engine Room Log BookC. Oil Record BookD. Muster List80 .STCW 78/95 Convention shall apply to seafarers ______ on board seagoing ships entitled to fly the flag of a Party.A. servedB. servingC. surveyedD. surveying81. The main purpose of port State control is not to ______.A .prevent an unsafe ship proceeding to seaB. prevent a ship threatening the marine environmentC. fine the shipsD. confirm a safe sailing82. The bridge should inform the engine room ______ beforepassing through congested or shallow waterway.A. 24 hoursB. 2 hoursC. 1 hourD. 15 minutes83. When the chief engineer is in the machinery spaces, the officer in charge of the engineering watch shall ______.A. continue to be responsible for machinery space operations despite the presence of the C/EB. hand over the responsibility to the chief engineer activelyC. be responsible for the watching together with the chief engineerD. assistant the chief engineer to control the machinery84. According to the international regulations concerning the prevention of pollution of sea areas from ships, the disposal into the sea of all plastics is ______.A. welcomeB. admitted in some special sea areasC. prohibitedD. acceptable85. The ship emergency plan item does not include ______usually.Ⅰ.lifesaving, fire fightingⅡ.first aid Ⅲ.abandon shipA. ⅡB. ⅢC. Ⅱ.ⅢD.Ⅰ86. Under ISM Code, the ship to which it applies has to carry ______.A. an International Ship Security CertificateB. an International Oil Pollution CertificateC. a Safety Management CertificateD. an International Ballast Water Management Certificate87. The objective of ISPS Code is ______.A. to protect the marine environmentB. to provide a method to avoid an accidentC. to protect the ship from collisionD. to keep terrorism action away from ships88. According to “MARITIME LABOUR CONVENTION,2006”, The maximum hours of work shall not exceed ______.A. 14 hours in any 24-hour periodB. 72 hours in any seven-day periodC. 10 hours in any 24-hour periodD. 88 hours in any seven-day period二、关联题（关联题题干下有4个小题，每个小题4个选项）第一组Port State Control (PSC) is the inspection of foreign ships in national ports foe the purpose of verifying that condition of the ship and its equipment comply with the requirements of international conventions and that the ship in manned and operated in compliance with applicable international laws.The primary responsibility for ensuring that a ship maintains a standard at least equivalent to that specified in international conventions rests with the flag State and if all flag States performed their duties satisfactorily there would be no need for port State control. Unfortunately this is not the case as evidenced by the many marine accidents around the world-hence the need for additional control.The authority for exercising PSC is the national law based onrelevant conventions. It is therefore necessary for a port State to be Party to those conventions and to have promulgated the necessary legislation before exercising PSC. In accordance with the provisions of the applicable conventions, Parties may conduct inspections of foreign ships in ports through Port State Control Officers (PSCOs).89. The purpose of PSC is ______.①to check and inspect foreign ships②to verify the condition of a ship in compliance with requirements of international conventions③to make sure that the ship is manned and operated well④to detain shipsA. ①②B. ②③C. ①③D. ①②③④90. Who will be responsible for ensuring that a ship maintains a standard at least equivalent to that specified in international conventions?A. PSCOSB. Ship ownersC. Flag statesD. Port states91. Before exercising PSC, a port state should ______.A. become a contracting Party and promulgate regulations for implementing PSCB. inform ship ownersC. establish proceduresD. inform shipping companies92. PSC inspection is implemented by ______ through ______.A. flag states/PSCOsB. flag states/ship ownersC. port states/PSCOsD. port states/ship owners第二组Almost all failures in the fuel oil system, including the compression being too low, result in the crankshaft rotating more slowly if there is a failure at one or two cylinders fail, and the engine is not fully loaded, the crankshaft rev/min does not decrease, the reason being that the governor ensures that the remaining cylinders are loaded to a correspondingly greater extent. If the engine is already fully loaded, the cylinders that are working normally become overloaded causing a smoking exhaust and higher exhaust temperatures etc. The load must always be reduced until the failure has been located and rectified. The reasons for a cylinder suddenly working at reduced load, or failing completely, may be:1. a defective or blocked fuel injection valve2.the fuel oil pump piston seizing in the barrel. This failure can be ascertained by trying tomove the pump?s toothed rack.. Defective fuel pumps must be changed.3.the compression being too low because of sticking, worn or broken piston rings4.leaking inlet or exhaust valves5.no clearance in the valve operation gearThe reasons for the crankshaft rotating more slowly, or stopping completely, can also be :1.the fuel oil filter being blocked. This failure is identified by decreasing oil pressure afterthe fuel oil filter.2.the fuel oil primary pump?s bypass slide valve sticking in the open position3.leaking fuel oil pipes or joints4.water in the fuel oil5.the regulating mechanism being jammed6.the governor not functioning correctly7.the electrical shutdown valve (the monitoring system) being activated93. This passage is mainly about ______.A. the failure of reduced rpmB. the failure of the governorC. how to ensure the constant rotational speedD. the reasons for the fuel system to shut down94. If one or two cylinders fail in fuel oil system the crankshaft rev/min ______.①will invariably decrease ②does not decrease③will decrease under certain circumstancesA. ①B. ②C. ③D. None of ①②③is true95. Which of the following is NOT mentioned as the reason for a cylinder suddenly working at reduced load?A. fuel valve failureB. failure of fuel pump discharge valvesC. too large gaps of piston ringsD. the fuel oil filter being blocked completely96. Which of the following is NOT mentioned as the reason for the crankshaft rotating more slowly or stopping?A. changing from heavy oil to light diesel oilB. connections leakingC. there being too much waterD. malfunction of the governor。

中华人民共和国海事局2006年第2期海船船员适任证书全国统考试题(总第40期)科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题, 每题10分。

一、单项选择题1.______usually helps to induce air movement to assist combustion.A. Cylinder coverB. Main bearingC. The exhaust valveD. The piston movement2.The mechanical efficiency of an engine is always less than 100% ______lossesoccurring in the form of friction.A. becauseB. sinceC. due toD. owing3.The exhaust ports are located around the lower part of the cylinder liner, ______theproducts of combustion are driven by scavenging air.A. in whichB. by whichC. through whichD. from which4.The third engineer took the ______and checked the tank table in the office andrecorded all relevant data, as well as calculated the bunkering.A. water levelB. sump levelC. ballast tank levelD. ship's trim5.The lubricating pipes and ducts should be blown out with ______.A. the atmosphereB. the fresh waterC. the compressed airD. the chemical compounds6.______neutralizes the acid conditions and ______cleanses the rings and grooves.A. The detergency/the alkalinityB. The alkalinity/the detergencyC. The inhabitant/ the waterD. The additives/the distilled water7.If the engine does not start on air, it may be due to______.A. low compression of the fuel pumpsB. incorrect timing of fuel pumpsC. the starting air valves stuckD. air-locks in fuel oil pipeline8.______device is provided to prevent starting air from being admitted to thecylinder before the reversing is completed.A. An automaticB. A transmissionC. A self-regulatingD. An interlocking9. A reduction in load on a diesel engine results in ______of speed of the crankshaft.A. a reductionB. an increaseC. an outingD. a downwards10.Fuel injection uses the jet pump system and a Woodward type hydraulic ______isused to control engine speed.A. controllerB. governorC. instrumentD. apparatus 11.The overspeeding of the diesel engine driving an electric generator could cause______.A. low voltage trip to tripB. reverse power trip to tripC. damage to windingsD. excessive exhaust temperatures12.Any carbon built up on surfaces must be washed away by ______additives andheld in suspension by a ______additive.A. dispersant /detergentB. detergent/dispersantC. dispersant /dispersantD. detergent/detergent13.While flowing through the volute in a centrifugal pump, part of the ______energyof the liquid is converted to ______energy.A. kinetic/pressureB. kinetic/essentialC. pressure/kineticD.pressure/height14.Gear pumps are ______because they discharge a near constant amount of liquidregardless of pressure.A. negative displacement typeB. turbine typeC. positive displacement typeD. mixed-flow type15.Operating a rotary pump at speeds in excess of design requirements couldcause______.A. decreased clearances between rotating partsB. decreased slippage to the suction side of the pumpC. air binding in the discharge portsD. erosion and excessive wear16.The fire pumps must be capable of delivering a total quantity of water at a definedhead , not less than______of the total bilge pumping capacity.A. one-thirdB. two-thirdsC. one-fourthD. two-fourths17.The bilge system has been performing well; however, the aft starboard engineroom bilge-well suddenly fails to be pumped out. Which of the following should be done first to determine the cause?A. Open the bilge pump for inspection.B. Remove each of the manifold valves.C. Remove only the manifold valve to the affected bilge-well.D. Attempt to pump out another bilge well to determine if the entire system isaffected.18.Which of the following statements describes one of the functions of the ballastsystem?A. To permit flooding of any fuel oil storage tank on any class of ship.B. To use it as a secondary service system.C. To store reserve feed or potable water for extended cruises.D. To stabilize the ship by flooding certain designed tanks with seawater.19.If an operating auxiliary boiler has a water pH reading of 7, you should ______.A. bottom blow the boilerB. treat the water with caustic soda1C. treat the water with chemical scavengersD. reduce the water alkalinity to recommended readings20.Where tanks are arranged for either oil or ballast ______must be fitted in thepipeline.A. a change-over chestB. a head tankC. a emergency bilge pumpD. an aircooler21.The most common cause of scale formation in an auxiliary boiler is ______.A. concentrations of calcium sulphate in the boiler waterB. fuel oil in the feedwaterC. improper treatment of the feed water with calcium sulphateD. excessive feed water alkalinity22.The ______of the gravity disc is too big. It cause oil to flow through the wateroutlet. We changed the disc and no oil is found in the water outlet.A. gravityB. diameterC. circumferenceD. cylinder23.Oil water separators are used to ensure that ships don't discharge oil when______bilge water.A. to pump offB. being pumpedC. pumping outD. it pumping out24. A high rate of separation between oil and water is favored by______.A. large size of oil globuleB. low temperature25. C. high viscosity D. high flow rate26.Medium speed engines have a ______power to weight ratio than the slow speedtwo strokes, but due to the higher speeds tend to have ______maintenance intervals.A. higher/reducedB. higher/increasedC. lower/reducedD. lower/increased27.Oil Record Book Part I shall be provided to every oil tanker of 150 tons grosstonnage and above and every ship of 400 tons gross tonnage and above, ______oil tankers, to record relevant machinery space operations.A. as well asB. as long asC. rather thanD. other than28.It is important with all hydraulic systems to ensure that interlocking arrangementsprovided for pump or motor control levers are before the pump driving motor can be started.A. in the port positionB. in the starboard positionC. in the neutral positionD. to be dismantled29.The hand steering is a method by which the motion of the rudder is controlledwith______.A. a motor-driven steering wheelB. a pneumatic steering wheelC. a hand-driven steering wheelD. an electric steering wheel30.With reference to operating a four-ram steering gear system under emergencyconditions, which one of the following statements is incorrect ?A. Only one pump should be used at any timeB. The ship speed should be reduced to 70% of the normalC. Watch keeping of the steering gear should be increasedD. Limitations of the steering gear should be logged but the bridge need not beinformed31.Which of the following problems can result in below normal pressure in theintercooler of an operating low pressure air compressor?A. Defective pressure pilot valveB. Defective receiver relief valveC. Leaking intake valves on the high pressure cylinderD. Leaking discharge valves on the low pressure cylinder32.The air charge leaving an intercooler, or after-cooler of an air compressor can beexpected to be __.A. superheatedB. super-cooledC. at or below the dew pointD. all of theabove33.Open the ______of inter cooler before starting an air compressor.A. cylinder coverB. cooling waterC. oil cupD. drain valve34.Sludge may form in the crankcase of an air conditioning compressor as a resultof______.A. bubbling refrigerantB. overheating and oxidationC. lowered operating temperaturesD. reducing the cloud or flash point35.If a refrigeration system were short of refrigerant, the condition would result in______.A. continuous running of the compressorB. high suction pressureC. high discharge pressureD. short cycling of the compressor on the waterfailure switch36.Which of the statements listed concerning heat transfer is correct?A. Heat is always transferred at a constant rate.B. Heat transfer rate increases as temperature difference increases.C. The rate of heat transfer is not affected by temperature difference.D. The high temperature region is known as a heat sink.37.The purpose of the low pressure cutout switch is to______.A. maintain liquid refrigerant at the suction of the compressorB. maintain a preset suction pressure to the compressorC. start and stop the compressor at preset operating pressuresD. operate at minimum efficiency38.When a refrigeration compressor is in the 'off' cycle, the thermal expansion valvewill______.A. always be wide open when the compressor restartsB. continue to operate as if the system were in operationC. remain open until evaporator pressure equalizes, then close until the compressorrestartsD. always be completely closed until the compressor restarts239.The star formation is most commonly used and requires ______on the alternator.A. one slip-ringB. two slipringsC. three slipringsD. four sliprings40. A constant output voltage from an AC generator is maintained by the ______.A. prime mover governorB. exciter generatorC. voltage regulatorD. reverse power relay41.Prior to any overhaul work on electric equipment, it is important to ensure thecircuits are______.A. liveB. deadC. excitedD. on line42.Which of the following should be the FIRST step in removing a generator fromparallel operation?A. Trip the generator off the switchboard.B. Turn off all electrical equipment.C.Remove the load from the … offgoing' generator.D. Increase the cycles of the generator staying on the line.43. A … dead front' switchboard is one ______.A. without switches on itB. with insulated switches and no exposed terminalsC. without circuit breakersD. without safety hand rails nor rubber mats44.In ______the control action is independent on the output.A. a closed loop control systemB. an open loop control systemC. a boiler control systemD. a steering gear automatic control system45.Every precaution must be taken to avoid ______.A. sparking being taking placeB. to spark taking placeC. sparking to be taken placeD. sparking taking place46.The ______is used to measure the volume of a liquid or gas through a pipelinewithin any given period of time.A. flowmeterB. viscometerC. micrometerD. feeler47. A salinity indicator is used to determine the ______.A. cause of salt contaminationB. location of salt water contaminationC. chemical makeup of feed-waterD. level of alkalinity in condensate48.In order to accurately measure very low pressures, which of the instruments listedshould be used?A. Compound gageB. Bourdon tubeC. ManometerD. Deadweight gage49. A circuit breaker and a fuse have a basic similarity in that they both ______.A. can be reset to energize the circuitB. should open the circuit when overloadedC. will burn out when an over current flow developsD. all of the above50.The main difference between a motor control circuit containing low voltageprotection and low voltage release is that the latter contains______.A. a magnetic operating coilB. normally open line contactsC. thermal-overload protectionD. a momentary-contact start button51.If the engine ______for a long period, there will be a danger of frost.A. must stand inoperativeB. has to stand inoperativeC. must be stood idleD. will stand idle52.If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed,ignition may be delayed because the ______.A. cylinder compression pressure may not be high enoughB. cylinder compression temperature may be too highC. fuel oil injection pressure may not be high enoughD. scavenge and purge process is incomplete53.Improper cooling of a diesel engine cylinder liner due to the accumulation of scaledeposits, may cause______.A. low compression pressureB. increased piston wearC. increased cylinder lube oil consumptionD. poor contact between compression rings and liner54.Poor combustion in a diesel engine can be caused by______.A. high compression pressureB. low intake air temperatureC. low exhaust pressureD. high scavenge air temperature55.High exhaust temperature and black smoke exhausting from an auxiliary dieselengine can be caused by ______.A. engine overloadB. low combustion temperatureC. plugged fuel nozzle holesD. excessive compression pressure56.In a diesel engine, excessive cylinder liner wear will cause ______.I. increased blow-by II. wear between the piston ring and grooveA. I only is correctB. II only is correctC. both I and II are correctD. neither I or II are correctbustion knock can occur in the cylinders of a diesel engine under anycondition permitting ______.A. a shortened ignition delay periodB. a lean fuel/air mixtureC. excess fuel in the combustion chamberD. rapid vaporization of injected fuel droplets58.The load on the crosshead pin is always______, so it is the ______half of thebearing which is subject to wear.A. upwards/topB. upwards/bottomC. downwards/topD. downwards/bottom59.If the action of the engine indicates that some of the cylinders are not firing, theones affected may be determined by watching ______.3A. the bad smokeB. the smoky exhaustC. the exhaust temperatureD. the peak pressure60. A centrifugal pump can‟t supply water after starting. You should firs tly check ___.A. discharge valveB. power supplyC. packing glandD. bearing lubrication61.Which of the motors for the devices listed below is fitted with an instantaneous(瞬时的) overload relay?A. FanB. PumpC. WinchD. Machine tool62.If ______are taken at regular intervals, any unequal distribution of load will beeasily found out.A. indicator diagramsB. nomo-gramC. temperature readingsD. pressure readings63.Oil mist detectors are usually used on board to detect oil mist density within _____.A. the engine crankcaseB. the engine scavenge boxesC. drain tanksD. fuel tanks64.The resistance of electric wire will decrease as its ______.A. length increasesB. cross-sectional area increasesC. temperature increasesD. percent of metallic purities increases65.It is well known that the wh ole power distribution of the ship‟s electrical servicesmainly depend on the______.A. sub-boardsB. main switchboardsC. emergency switchboardsD. distribution boards66.The Company should ensure that ______documents are promptly removed.A. absoluteB. updatedC. outdatedD. new67.You may improve a vessel's stability by ______.A. keeping the fuel tanks topped offB. increasing the free surface effectC. keeping the fuel tanks at least half fullD. keeping at least one fuel tank empty for slops68.The most common type of containment device for spilled oil on the water is the useof ______.A. strawB. boomsC. skimmersD. chemical dispersants69.We‟ve trie d many ways, but all in vain. Only in this way, ___the problem, I‟m sure.A. can we solveB. we can solveC. we will solveD. can be solved70.It was ______midnight that we removed the trouble and went back to our cabins.A. untilB. not untilC. not beforeD. not after71.The flash point of a petroleum product is an indication of its______.A. viscosityB. pour pointC. volatilityD. lower explosive limit72.If there has been a fire in a closed unventilated compartment it may be unsafe toenter because of ______.A. unburned carbon particlesB. excess nitrogenC. a lack of oxygenD. excess hydrogen73.Tell your men ______the rules and procedures of working when dismantling theequipment.A. not to go againstB.don‟t go againstC. not go to againstD. to not goagainst74.The minimum number and capacity of bilge pumps and fire pumps and theirdistributing within the ship is governed by______.A. Classification Society RulesB. National requirementsC. The IMO International Convention for the Safety of Life at SeaD. All of the above.75.The SOLAS Convention in its successive forms is generally regarded as the mostimportant of all international treaties concerning the ______of merchant ships.A. pollutionB. economizationC. safetyD. efficiency二. 关联题（关联题题干下有4个小题，每小题4个选项）The windlass is the usual anchor-handling device where one machine may be used to handle both anchors. A more recent development, particular on largervessels, is the split windlass where one machine is used for each anchor.The rotating units of a split windlass consist of a cable lifter with shaped snug to grip the anchor cable, a mooring drum for paying out or letting go of mooringwires and a warp end for warping duties. Each of these units may be separatelyengaged or disengaged by means of a dog clutch, although the warp end is oftendriven in association with mooring drum. A spur gear assembly transmits the motor drive to the shaft where the various dog clutches enable the power take-off.Separate band brakes are fitted to hold the cable lifter and the mooring drum when the power is switched off.The cable lifter unit is mounted so as to raise and lower the cable from thespurling pipe, which is at the top and the chain or cable locker.Anchor capstans are used in some installations where the cable lifter rotatesabout a vertical axis. Only the cable lifter unit is located on deck, the drivingmachinery being on the deck below.76.According to the passage, the rotating units of a split windlass don‟t include______.A. a cable lifterB. a mooring drumC. a chain lockerD. a warp end77.The word “assembly” in the sentence “ A spur gear assembly transmits the motordrive to the shaft where the various dog clutches enable the power take-off.” is as the same meaning as ______.A. unitB. shaftC. dog clutchD. spurling pipe78.One of the functions of a dog clutch is ______.A. to transmit the motor drive to the shaft4B. to hold the cable lifter and the mooring drum when the power is switched offC. to engage or disengage the rotating units of a split windlass separatelyD. to handle both anchors79.Which of the following statements is correct ?A. A more recently development, particularly on larger vessels, is the splitwindlass where one machine is used to handle both anchors.B.The word “machine” in the passage refers to the windlass.C. Anchor capstans are used in some installation where the cable lifter rotatesabout a horizontal axis.D. Both the cable lifter unit and the driving machinery are located on deck.三、中译英（共2题，请将答案写在答题纸上）79. （修理单）辅助锅炉水空间需采用化学方法除去水垢，如发现有烧坏的管子则换新，安全释放阀调至设定值。

轮机系统英语试题及答案一、选择题（每题2分，共20分）1. What is the primary function of a marine engine?A. To generate electricityB. To propel the shipC. To provide heatingD. To cool the engine2. The term "deadweight tonnage" refers to:A. The weight of the ship without cargoB. The maximum cargo capacity of the shipC. The weight of the ship fully loadedD. The total weight of the ship including cargo3. Which of the following is NOT a type of marine fuel?A. Heavy fuel oilB. Marine diesel oilC. Liquefied natural gasD. Gasoline4. What does the abbreviation "BOP" stand for in a ship's engine room?A. Ballast On PumpB. Blow Off PressureC. Black Oil PumpD. None of the above5. The main purpose of a ship's propeller is to:A. Generate electricityB. Provide stabilityC. Change the direction of the shipD. Convert rotational motion into thrust6. What is the role of a marine boiler?A. To produce steam for propulsionB. To cool the engineC. To provide fresh waterD. To heat the ship's interior7. The term "trim" in ship terminology refers to:A. The angle of the ship's bowB. The weight distribution along the ship's lengthC. The shape of the ship's hullD. The speed of the ship8. What does "GT" stand for in ship specifications?A. Gross TonnageB. Gross TransportC. General TransportD. Global Trade9. The main difference between a diesel engine and a steam turbine is:A. The type of fuel usedB. The method of converting thermal energy into mechanical energyC. The color of the engineD. The size of the engine10. What is the purpose of a ship's bilge system?A. To clean the ship's hullB. To remove water from the ship's interiorC. To provide fresh water for the crewD. To cool the engine答案：1. B2. B3. D4. D5. D6. A7. B8. A9. B10. B二、填空题（每空1分，共10分）1. The main components of a marine engine include the__________, the __________, and the __________.2. The term "draught" refers to the __________ of the ship below the waterline.3. A ship's hull is divided into several __________ to increase its structural integrity.4. The "load line marks" on a ship indicate the __________ of the ship when loaded with cargo.5. The "freeboard" is the distance between the waterline and the __________ of the ship.6. The "safety valve" in a marine boiler is designed to__________ pressure.7. The "main engine" is the primary source of __________ fora ship.8. The "stern tube" is the part of the ship where the__________ is located.9. "Machinery space" refers to the area where the ship's__________ are located.10. The "lifeboat" is a vessel designed to __________ people in case of an emergency.答案：1. engine, boiler, turbine2. depth3. compartments4. maximum permissible draft5. deck6. relieve excessive7. propulsion8. propeller9. engines10. rescue三、简答题（每题5分，共10分）1. Explain the difference between a single-screw ship and a twin-screw ship.2. Describe the function of a ship's anchor and how it is used.答案：1. A single-screw ship is propelled by a single propeller, which is driven by the main engine. It is simpler in designand usually less expensive to build and maintain. A twin-screw ship, on the other hand, has two propellers, each driven by an engine, which can be the same or different. This configuration provides better maneuverability, redundancy in case one engine fails, and often results in higher speeds.2. A ship's anchor is a device used to secure the ship when it is not in motion, particularly in harbors or at sea when the ship needs to be stationary. The anchor is dropped to the seabed, where it digs into the bottom, providing resistance to the ship's movement. The anchor is connected to the。

轮机长英文面试60题（含答案，供参考）1．你能谈谈你的最后一艘船吗？您体验过哪些类型（品牌）的主机？在我的最后一艘船上，我主要关注发动机类型等细节DOOSAN MAN B&W 8K90MC-C，36560 KW，总吨位 39906/净吨位 24504，从印度海航行到欧洲我有使用过几种不同类型的主机的经验，例如苏尔寿、MAN B&W 和 UEC 等。

2. 总工程师应该具备哪些能力？<>n>首先，我认为对于一个总工程师来说，工作中的熟练和熟练是非常重要的。

其次，他应该在发动机部门保持良好的管理。

第三，他应该能够通过公平分配工作来激励他管理的每个人。

第四，他需要擅长英语和语言交流。

最后，对于总工程师来说，拥有工作精神，与船长、技术监督及公司其他人员、大轮机长、大副保持良好的关系。

最重要的是，在大多数情况下，他应该听从师父的命令或指示。

上面的答案仅供参考。

3.您上船的气缸润滑油和燃油消耗量是多少？<>n>F或您的参考资料：主机耗油量约80-95吨/天，汽缸油约300-400升/天，视转速和海况而定。

通常情况下，主机气缸润滑油的消耗率为0.8-1.2克/小时/马力，而燃油消耗率约为120-140克/小时/马力。

4. 能否请您详细描述一下加注程序？我应该先按照船东的指示制定加油计划，然后报船长批准。

其次，应召开加油会议，明确船员在加油过程中的职责。

第三，准备以下的插头，灭火器，桶，报警器，通讯装置，燃油系统图（图）。

<>n>第四，我应该命令三工程师测量供应商油箱中的油量并记录流量计数字。

一切准备就绪后开始加油。

我应该命令值班工程师一直进行探测，尤其是在为每个油箱加油的开始和结束时。

我的值班工程师应注意油压、温度和油样n 和 u sed 作为未来的证据。

顺便说一句，负责工程师应该注意，需要再取一瓶样品油，这些油样将在容器中储存三年，以满足MARPOL VI 的要求。

中华人民共和国海事局2009年第5期海船船员适任统考试题（总第48期）科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题, 每题10分。

1. Diesel engines classified as reciprocating internal combustion engines because they____A. use energy from fuel burned outside their cylindersB. burn fuel in a combustion chamber that moves back and forthC. burn fuel in a chamber where its energy moves a piston up and downD. a continuous combustion process to impart rotary motion to the pistons2. The abbreviation “MIP” stands for _____A. middle indication pressureB. mean indicated pressureC. mean indicated pitchD. middle indicated power3. The term used to express the ignition quality of a particular fuel is _____A. cetane numberB. octane numberC. ignition index numberD. volatility point4. The period when both inlet valves and exhaust valves are open is referred to as____A. valve loopB. valve uniflowC. valve overlapD. valve grinding5. Which of the following statements represents the function of the compression rings installed at the top of a diesel engine piston?A. Control the amount of lube oil burned in the combustion chamberB. Transmit heat from the piston to the cylinder linerC. Prevent damage to ring groove inserts by action as a heat dam.D. Dissipate combustion chamber gas pressure by channeling it through the ring gap.6. The gas loads on the engine structure are constrained by means of hydraulically preloaded_____ Which connect the bed plate, frame sections and cylinder jackets into a single unit.A. connecting rodsB. mean bearingC. columnD. the rods7. ______of different thickness are inserted between the shells to enable adjustment of the bearing clearness.A. ScrewsB. FilmsC. DisesD. Shims8. Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantages of ____A. less even torqueB. higher cylinder head temperaturesC. fewer power stroke per revolutionD. greater weight/size requirements9. During the fuel imection period, fuel pressure must exceed cylinder gas pressure to _____A. ensure penetration and distribution of the fuel in the combustion chamberB. ensure the needle valve is flushed clean during each injectionC. prevent combustion gas blowback into the open needle valveD. prevent reflected pressure waves when the needle valve closes10. The upper piston rings in large, slow-speed, two-stroke cycle diesel engines are most effectively lubricated by oil ____A. fed from mechanical lubricatorsB. thrown off from the main bearingsC. supplied form wick fed drip lubricatorsD. flow from a centrifugal banjo oiler11. In a diesel engine closed freshwater cooling system, the amount of coolant flowing through the heat exchange is controlled by the _____A. section pressure regulatorB. thermostatic bypass valveC. sea water temperatureD. water level in the expansion tank12. The purpose of an after-cooler is to ______A. reduce the turbocharger operation temperatureB. increase the pressure of the inlet airC. increase the density of the inlet airD. reduce the blower operation temperature13. Compressed air is supplied by air compressors to _____A. the air receiversB. the starting valvesC. the cylinder coversD. the distributors14. _____supplies pilot air to control the cylinder air start valves.A. An air receiversB. An indicator cockC. An air distributorD. A safety valve15. Thermocouple pyrometers are used on large, main propulsion diesel engines to indicate the temperature of the ______A. cooling water leaving each cylinderB. fuel oil entering the injectorC. exhaust gases at various locationsD. lube oil at the bearing suppliers16. After starting a diesel engine, which of the listed operating conditions should be checked first?A. Air box pressureB. Lube oil pressureC. Exhaust temperaturesD. Raw water pressure17. A device which functions to bring a diesel engine to a full stop to protect it from damage is known as a/an _____A. torque limiterB. over-speed tripC. over-speed governorD. load limit governor18. Air cocks, usually positioned at the ______in a circulating systems, is used to get rid of the air in the system.A. bending jointB. expansion tankC. weldD. the highest point19. Some medium and high-speed diesel engines require reduction gear units to provide a useful propeller speed. In most reduction gears, the bull gear____A. must churn the oil in the sumpB. is connected to the propeller shaftC. is driven at the highest RPMD. compensates for alignment variations between the engine and pinion gear20. Which of the following statements concerning fire-tube boilers is correct?A. combustion gases flow through the tubesB. flames impinge on the tubesC. combustion occurs in the tubesD. water flows through the tubes21. A bypass line provided around a waste heat auxiliary boiler in a diesel engine exhaust system, may be used to avoid boiler______A. corrosion at low engine loadsB. erosion at high engine loadsC. overload at high engine loadsD. scaling at all exhaust temperature22. The amount of chlonde content in the water of an auxiliary boiler can be reduced by _____A. adding hydrazineB. blowing down the boilerC. adding phenolphthaleinD. adding a sulfite chloride scavenger23. Failure of the burner flame in an automatic auxiliary boiler would probably be a result of______A. water in the fuel oilB. broken high tension leadsC. incorrect electrode settingD. full fuel pressure at the nozzle24. Boiler water hardness is increased by _____A. zero alkalinity to the waterB. scale forming salts in the feed waterC. dissolved gases in the waterD. improper operation of the DS heater25. A screw pump belongs to ______according to its working principleA. reciprocating pumpsB. positive displacement pumpsC. dissolved gases in the waterD. centripetal pumps26. A centrifugal pump operating against a closed discharge valve has a/an_______A. capacity of 100%B. efficiency of 0%C. internal slippage of 0%D. shut off horsepower rating of 100%27. Before disconnecting a joint in a pipeline, you should______A. determine the size of the gasketB. hang a bucket under the jointC. have a first aid kit on handD. be sure no pressure exists in the line28. It is possible to mount a double suction centrifugal pump impeller with the vanes facing in the wrong direction. This would cause the pump ______A. head capacity to improveB. discharge to be reversedC. efficiency to decreaseD. slippage to decrease29. If a centrifugal pump is driven by a constant speed electric motor and produces a discharge pressure less than designed, the cause is probably_____A. excessive pump speedB. excessive suction headC. worn wearing ringsD. gross pump misalignment30. Properties of a good refrigeration oil include_______A. low wax contentB. high pour pointC. high viscosityD. low wax content, high pour point, high viscosity31. The _____ only allows for adjustment of temperature in each room by the occupant manually controlling the air volume admitted.A. central air conditioning systemB. high velocity systemC. low velocity systemD. single duct system32. The process of adding moisture to air to increase the relative humidity is known as______A. sublimation B desiccation C. humidification D. miniaturization33. Sludgy may form in the crankcase of an air conditioning compressor as a result of _____A. bubbling refrigerantB. overheating and oxidationC. lowered operating temperaturesD. reducing the cloud or floc point34. Which of the equipment listed is most effective in processing bilge slops for overboard dischargeA. a 100 PPM oily water separatorB. assembling the lube oil purifier as a separator and aligning it to the bilge overboardC. a 15 PPM oily water separatorD. a magnetic duplex strainer35. When started, a complete oily water separating unit is first filled _____. The oily watermixture is then pumped through the inlet pipe into the coarse separating compartment.A. with dirty waterB. with clean waterC. by oily waterD. by mixed water36. Which is the pollution prevention equipment?A. booster pumpB. evaporatorC. incineratorD. cooler37. Concerning the incinerator’s operation, which of the following is not correct?A. scavenging time should be more than 30 seconds before ignitingB. the oil temperature of waste oil tank is 80-100℃C. first igniting the incinerator with diesel oil when the temperature of hearth is about 600℃, the waste oil is drawn in.D. the ash from incinerator can be dumped into sea no distance limitation38. Bacteria which live ____are said to be aerobicA. in the presence of oxygenB. without oxygenC. in the presence of nutritionD. without nutrition39. For a purifier changing to a gravity disc with smaller hole diameter will move the interface towards the ______A. bowl peripheryB. bowl centerC. upper surfaceD. lower surface40. To ensure lube oil purifier working in normal condition, the interval between two sludgy discharging should not exceed ____ hours.A. 2B. 4C. 5D. 641. Which of the following problems will occur if a disk-type centrifugal lube oil purifier is not properly primed prior to admitting oil flow to the bowl?A. Contamination of the lube oil by emulsification will resultB. The lube oil will not be subjected to the proper centrifugal forceC. The lube oil will overheat and flashD. Oil will discharge from the heavy phase discharge port and be wasted42. A vacuum is initially created in a flash type distilling plant by _____A. the flashing of the feed waterB. the condensation of the saltwater feedC. air ejectors, eductors, of a separate vacuum pumpD. condensation of the distillate43. On which of the following heated surfaces of a flash type evaporator would you be more likely to find soft scale formation?A. Feed-water heater internal tube surfacesB. Internal distillate cooler tubesC. Flash chamber vertical surfacesD. pressure control valve44. What type of valve is used to direct the flow of hydraulic fluid?A. relief valveB. direction control valveC. stop valveD. pressure control valve45. Another name for the “swash plate” in the variable delivery pump is _____A. tiltable discB. gravity discC. distributing discD. catch plate46. The drive motor will have a brake arranged to fail-safe, i.e. it will ___the load if power fails or machine is stopped.A. liftB. putC. takeD. hold47. If the pump for a hydraulic anchor windlass is over heating, the cause may be_____A. increased pump speedB. excessive pump discharge pressureC. too low of a tilting box angleD. low pump speed48. When the power is shut off, the wire____A. becomes slackB. can not be paid out unless the brake is overhauled or recover wire unless manually operatedC. will be let out because the brake is out of workD. may be pay out due to no power49. An additive used to improve the ability of a lube oil to reduce friction is known as a/an ____A. suppressant additiveB. dispersant additiveC. extreme pressure additiveD. viscosity improver additive50. Strainers are commonly used in hydraulic systems to _____A. protect the pump from fine soluble contaminantsB. prevent solid particles from entering the pumpC. prevent solid particles from entering the filterD. protect the directional control valves51. Current changing in direction and rising and falling in value is ____A. A.C.B. D.C. C. generatorD. fresh water generator52. The magnetic field is provided by electromagnet, so arranged that adjacent poles have_____A. opposite polarityB. the same polarityC. negative polarityD. positive polarity53. Prior to closing the breaker when paralleling two AC. generators, the recommended practice is to have the frequency of the incoming machine_____A. slightly less than the line frequencyB. the same as the line frequencyC. slightly greater than the line frequencyD. have nothing to do with the lien frequency54. The power factor at which a paralleled A.C. generator operates is usually adjusted by the ____A. connected loadB. prime mover speedC. field excitationD. generator’s rated voltage54. When you are making a high potential test on a piece of repaired electrical machinery, a rise in leakage current indicates ________A. good insulationB. bad insulationC. high insulation power factorD. a high slot discharge factor56. ______is not a part of the main switchboard on board.A. BusbarB. Load panel of main generatorC. Paralleling panelD. Shore connection box57. Usually, emergency electricity supplies to _____on boardA. cargo winchB. windlassC. steering gearD. main air compressor58. The ground terminal of a starter should be connected to _____A. the common ground pointB. the starter’s frameC. the communicatorD. the starter’s mounting bolts59. The separate supplies are connected in either star or delta formation. The star formation is most commonly used and requires ______ slip-rings on the alternator.A. twoB. threeC. fourD. five60. As a general rule, the first troubleshooting action to be taken in checking faulty electric control devices is to ________A. draw a one line diagram of the circuitryB. test all fuses and measure the line voltageC. take megger readingsD. insulate the apparatus from ground9598659 (2009-7-16 14:14:26)61. When measuring AC current flow, you must always connect the meter ______A. in series with the power source and loadB. in parallel with the power source and loadC. insuring correct polarityD. using the lowest range possible to prevent instrument damage62. If a small electric motor is immersed in salt water it should be＿＿＿＿. Ⅰ. washed with free water; Ⅱ.dried in an ovenA. only ⅠB. only ⅡC. both Ⅰand ⅡD. neither Ⅰnor Ⅱ63. “AMIDSHIPS”refers to ________A. back of vesselB. the middle portion of a shipC. a backward movement of a vesselD. across the ship, at right angles to the fore-and-aft centerline64.______is the main cause to the damage of engine parts and excess wearingA. overloadB. the odds of the loadC. the default of engine partsD. overload and the odds of the load65. After “finished with engine”, which of the following cannot be shut off by the duty engineer?A. fuel oil booster pumpB. the main starting valveC. the sea chestD. the main cooling sea water pump66. Which of the following is NOT a recommended safe practice?A. Securing equipment against slipping or driftingB. Operating machinery at its recommended speedC. Repairing loose handles on tools before usingD. Using tools for purposes for which they are not designed67. A class “C” fire would occur in _____A. beddingB. pipe insulationC. paintD. a generator68. If a fire occurs in the boiler room as a result of a leaking fuel line, you should FIRST______A. notify the engineer on watchB. isolate and secure the pipingC. throw sand on the fireD. extinguish the fire using a combination nozzle with applicator69. Which of the following statements is true concerning carbon dioxide when used as a fire extinguishing agent?A. Carbon dioxide is corrosive when exposed to fireB. Carbon dioxide should be applied slowly to a large engine room fireC. Its total cooling effect is far greater than waterD. Its smothering effect is excellent for class B fires70. As a duty engineer, as soon as you hear the fire emergency signal, you should ensure that the _______.A. ring buoys are thrown overboardB. engines are stoppedC. fire pumps are startedD. life preserves have been issued to everyone71. When administering artific ial respiration, it is of the utmost importance to ______A. use the mouth-to-mouth methodB. clear airwaysC. use rhythmic pressure methodD. check the injured person’s hearbeat72. What is the harmful effect of sulfur in a fuel?A. It causes excessive smoking and soot at low firing ratesB. It doesn’t readily burn when combined with oxygenC. It clogs fuel oil strainers more oftenD. It forms a corrosive acid when mixed water or water vapor73. _____, where minor repairs are carried out with a ship in service, often during a stay in port. This may be remote from a ship repair site.A. V oyage repairsB. Routine dockingC. Damager repairsD. Conversion74. When ship in the dock repairing, engine department should emphasize on the inspection of ______.A. sea valve chest and thrusterB. steering gear and the shaft systemC. sea water systemD. fresh water system75. The additional mark________ in the Classification Certificate for Machinery represents that personnel are watching at engine assembly control station and monitoring all machinery and electronic devices.A. BRCB.MCCC.AUT-0D.AUT-176. Each completed page of the Oil Record Book must be signed by the _____A. engineer on watchB. chief engineerC. chief mateD. master77. The International Oil Pollution Prevention Certificate required by MARPOL is issued to Chinese flag by the ____A. IMOSCGD.PICC78. If________, the PSCO should proceed to a more detailed inspection.A. the PSCO’s general impression confirm a good standard of maintenanceB. the certificates are validC. the PSCO believes the sh ip doesn’t meet the requirementsD. the PSCO can’t find deficiencies at first glance79. The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the ______A. navigation log bookB. engine room log bookC. oil record bookD. muster list80. STCW78-95 Convention states that officer in charge of the engineering watch is the _______ representativeA. ship-owner’sB. master’sC. chief engineer’sD. manager’s81. In the event of minor emergencies when the machinery spaces unattended, ___________will be informed of malfunctions in the machinery by his cabin monitor.A. the chief engineerB. the engineer on cabin watchC. the bridge officer on watchD. the master82. At an unsheltered anchorage the chief engineer officer shall consult with the master whether or not to ______A. do engine repair workB. clean sea water filterC. maintain an underway watchD. take bunkering83. The Pollution Prevention Regulations require that all oil spills in United States waters be reported immediately to the ______A. local port authorityB. corps of engineersC. U.S. coast guardD. state pollution board84. When the garbage is mixed with some discharges having different disposal or discharge requirements, ________shall applyA. any requirement appointed by the PSC officerB. the most suitable requirementC. the most stringent requirementD. no requirement85. According to the SOLAS convention, the engine room emergency bilge water suction should connect with _____A. the main S.W. pumpB. the ballast pumpC. the air-conditioning water pumpD. the main S.W. pump or ballast pump that have the biggest output86. The purpose of the ISM Code is to provide ______standard for the safe management and operation of chips and for pollution prevention.87. ______means the level for which appropriate additional protective security measures shall be maintained for a period of time as a result of heightened risk of a security incident.A. Security level 1B. Security level 2C. Security level 3D. Security level 488. The installation and prevision of fire fighting equipment is mainly subject to ______A. ISM CodeB. ISPS CodeC. JBC CodeD. FSS Code二、关联题（关联提题干下有4个小题，每小题4个选项）第一组：In a closed fresh water system, the engine jackets, the heat exchanger and the circulating pumps form a continuous circuit which is not open to the atmosphere. The cylinder jacket cooling water after leaving the engine passes to a sea water circulating cooler (heat exchanger) and then into the jacket water circulating pumps. It is then pumped around the cylinder jackets, cylinder heads, exhaust valves and turbo-blowers. However, provision has to be made for the expansion of the water due to the increase in temperature and due to small amounts of air which may enter the system and become entrained and for water make-up due to leakages. These are met by a small head tank which is open to the atmosphere and placed at a higher level than any other point in the system so that the small changes in volume can be accommodated by changing the level of the free surface of the water in the tank. The head tank is generally connected into the system at the pump suction, as this minimizes the chance of air being draw into the system at the pump. The minimum height of the head tank may be based on maintaining pressure of fresh water in the heat exchanger above that of the seawater to ensure that in the event of a small internal lock developing seawater cannot enter the fresh water system. Alternatively, it may be based on the need for a minimum pressure to be maintained within the jackets to avoid cavitations effects. The closed systems usually need vents if steam pockets or air locks are not to cause trouble. V ent pipes of small-bore tube are lead from any local high point in the system to the top of the head tank for the release of air from the cooling water. A heater in the circuit facilitates warming of the engine prior to starting by circulating hot water. The temperature of the water entering the engine jackets is regulated by means of a by-pass across the jacket water cooler. The proportions of water passing through the cooler, or bypassing it are controlled by a three-way valve. The temperature is usually adjusted to maintain a constraint outlet water temperature from the engine regardless of the load or speed or the temperature of the seawater. The piston cooling system may be an open system which employs similar components with the closed system, except that a drain tank is used instead of ahead tank and the vent are then led to a hopper or tundish at the high point in the machinery space. The hopper serves as a visual flow indicator. A separate piston cooling system is used to limit any contamination from piston cooling glands to the piston cooling system only.89. The loop of the jacket cooling water is ______A. engine----heat exchanger----circulating pumps-----engineB. heat exchanger-----engine----circulating pumps----heat exchangerC. circulating pumps----heat exchanger-----engine-----circulating pumpsD. circulating pumps----engine-----heat exchanger----head tank90. A small head tank is provided in the closed jacket cooling water system for _____A. water expansionB. water make-upC. warming of the engineD. water expansion and make-up91. The head tank is connected to the closed circuit at _____A. engine inletB. pumps inletC. heat exchange inletD. engine outlet92. The jacket water temperature is regulated to maintain a constraint temperature of ___A. engine inletB. pumps inletC. heat exchanger inletD. engine outlet第二组Following a security incident, in which the response measures outlined in the Ship Security Plan (SSP) have been activated, there will be a thorough review of their effectiveness and details will be made available, on request, to persons duly authorized by the Ship’s Flag State Administration. The Ship Security Plan is not subject to detailed inspection (other than confirming its existence on the ship) by duly authorized officials of a port State unless there are “clear grounds” to believe that the ship as not in compliance with the requirement of SOLAS or the ISPS Code, and the only means to verify or rectify the non-compliance is to review the relevant sections of the Plan. In such cases, access to the Restricted parts of the Plan relating to the non-compliance is exceptionally allowed, but only with the consent of the Flag State, or the master, If the master, in his professional judgment, believes that such “clear grounds” exist, and allowing access to relevant sections of the Restricted part of the Plan might resolve the situation, such access can be exceptionally granted. However, this should be immediately reported by the ship to the Company Security Officer (CSO). If access to the Restricted part of the Plan is denied by the master, this should be immediately reported by the ship to Company Security Officer for guidance and reference to the Flag State.The Confidential part of a SSP cannot be subject to non-flag State inspection unless otherwise agreed by the contracting governments concerned. Any such request or demand by ort state officials to view sections of the confidential part of the Plan will be immediately reported by the ship to the Company Security Officer for guidance and reference to the flag State before any details are revealed to non-flag State officials. The Confidential provisions, which from an integral part of this Plan, are held by the Ship Security Officer (SSO)93. After security incident, the revision of the SSP will made by ______A. the SCOB. the SSOC. persons duly authorized by the Ship’s Flag State AdministrationD. information not given94. Which statement is True?A. The Port State Control Officer has no right to check a SSPB. The M aster has the right to refuse the request from a Port State Control Officer to check the confidential part of the SSP on boardC. The Confidential part of a SSP can never been subject to non-flag StateD. Even the flat State has no right to check the SSP thoroughly95. The Restricted parts of a SSP are kept on board by ______A. the CSOB. the SSOC. the Flag StateD. the master96. After the SSP being checked by a duly authorized officials of a port State, whom should be reported to by the ship immediately?A. Port StateB. Flag stateC. The CSOD. The Administration01-10CBACB DDBAA11-20BCACC BBDBA21-30C(A)BABD(B) DDCCA31-40DCBCB CDABB(D)41-50DCABA DBBCB(A)51-60AACCB DCACB61-70ACBDC DDBDC71-80BDAAB DBCDC81-90BCCCD CBAAD(A)91 BDCDBC 带括号的答案不确定。

轮机英语试题及答案一、选择题（每题1分，共10分）1. What is the term for the main engine of a ship?A. PropellerB. RudderC. EngineD. Boiler2. Which of the following is not a type of marine fuel?A. DieselB. BunkerC. GasolineD. Heavy Fuel Oil3. What does the abbreviation "SOLAS" stand for?A. Society of Legal and Administrative StudiesB. Safety of Life at SeaC. Special Operations and Logistics AssistanceD. Ship Operating and Lifesaving Systems4. What is the purpose of a ship's anchor?A. To propel the shipB. To steer the shipC. To secure the ship when not in motionD. To lift heavy objects5. The term "deadweight tonnage" refers to:A. The weight of the ship's hullB. The maximum weight a ship can carryC. The weight of the ship's cargoD. The weight of the ship's fuel6. What is the function of a ship's bilge?A. To store fresh waterB. To collect and pump out water from the hullC. To provide buoyancyD. To store oil7. Which of the following is a navigational instrument?A. CompassB. Engine roomC. LifeboatD. Anchor8. What is the term for the lowest part of a ship's hull?A. DeckB. HullC. KeelD. Stern9. What does "GM" stand for in ship stability calculations?A. Gross MassB. Gross TonnageC. Gantry MastD. Metacentric Height10. The International Maritime Organization is abbreviated as:A. IMOB. ITUC. ISOD. ILO二、填空题（每题1分，共5分）11. The main components of a ship's propulsion system include the ______, propulsion shaft, and propeller.12. The ______ is the person responsible for the operation and maintenance of the ship's engine.13. The term "freeboard" refers to the distance between the waterline and the ______ of the ship.14. A ship's ______ is the area where the crew lives and works.15. The ______ is a document that provides information about the ship's safety equipment and procedures.三、简答题（每题5分，共20分）16. Explain the difference between a cargo ship and a tanker.17. Describe the role of the International Maritime Organization (IMO) in maritime safety.18. What are the main factors considered when designing a ship's hull?19. Discuss the importance of regular maintenance of a ship's engine.四、论述题（每题15分，共30分）20. Discuss the environmental impact of maritime transportation and how it can be mitigated.21. Analyze the challenges faced by a ship's crew during a long voyage and how they can be addressed.五、翻译题（每题5分，共10分）22. Translate the following sentence into English: “船舶的稳性是指船舶在受到外力作用时，能够保持平衡的能力。

轮机英语大证模拟试题(三)1. In purification, there is no fuel oil in the clean oil outlet. It could be caused by____.①too high temperature of the dirty fuel oil;②too low temperature of the dirty fuel oil;③clogged filter A.① B.①②③ C.②③ D.②2. Which of the following would not be burnt in an incinerator (not ratified by IMO) on board?A. oil ragsB. PVC garbageC. waste oilD. waste clothes3. Which of the following statements is correct concerning the viscosity of lubricating oil?A. Viscosity will increase as temperature increases.B. Viscosity is a measure of a fluid's internal resistance to flow.C. Viscosity is not dependent on temperature.D. Viscosity will decrease as temperature decreases.4. Which of the following conditions would cause “panting” in a steaming auxiliary boiler?A. Faulty flame scanner.B. Flame failure.C. Insufficient combustion air.D. Low water level.5. Before replacing a piston you should cheek the rings to see that all clearances and gaps are within the permissible ____.A. discrepancyB. errorC. deflection D tolerance6. While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take FIRST?A. Start the fire pump and establish flow to the fire main.B. Open the guardian valve and standby to maneuver.C. Secure the burners then proceed to your assigned boat station.D. Open the master control valves on the fixed CO2 system.7. The function of diesel engine piston compression rings is to ____.A. remove oil from the cylinder combustion spaceB. transmit heat from the piston to the cylinder linerC. prevent engine friction lossesD. prevent piston side thrust8. Diesel engine automated control systems may utilize sensing devices of dual function with sensing ranges providing both alarm and engine shut down capability. Which of the key points would only require an alarm sensor?A. Jacket water pressure and temperature.B. Lube oil sump level.C. Lube oil pressure and temperature.D. Engine over-speed.9. The activated sludge strength should be checked at regular intervals, and it is good that the color of the aeration compartment water is_____. A. blackish B. chocolate C. ivory-white D. yellow10. Which of the listed items should be secured before performing any maintenance on a solenoid operated air start valve?A. Hydraulic switch and engage jacking gear.B. Motor drain and pneumatic control system power.C. Electric power and starting airD. Lube oil standby pump and control air11. Down-comers installed on auxiliary package boiler are protected from direct contact with hot gases by_____.A. steel baffleB. water wall tubesC. refractory and insulationD. several rows of screen tube12. Which factor determines the ring dam size for a fuel oil，tubular(管子型)bowl type, centrifugal purifier?A. The specific gravity of the fuel.B. The viscosity off the fuel.C. The quantity of water to be removed from the fuel.D. The quantity of dirt to be removed from the fuel.13. From the separator the fuel enters____ for HFO.A. the double bottom tankB. the separator oil tankC. the daily service tankD. the setting tank14. When securing a flash-type evaporator for an extended period of time, you should ____.A. fill the unit with saltwaterB. completely drain the unitC. tightly seal the unit to exclude airD. fill the unit with de-scaling compound15. It is necessary for the ship to contact ____ for authorization prior to undertaking mitigating actions in an oil pollution incident. A. the shipping company B. the coastal state C. the flag state D. the port state16. In cleaning up an oil spill, the use of chemical agents would ____.A. disperse or dissolve the oil in the waterB. not affect the oilC. remove the oil from the waterD. absorb the oil for easy removal17. Under normal conditions, the quantity of air circulation becomes less and less. What is the reason?A. Dirty delivery ducts.B. High temperature outside.C. Too much refrigerant.D. The fouling filters.18. Electric insulation is made of organic substances and so gradually ____ with age.A. becomes betterB. deterioratesC. increasesD. are fouled19. According to the SOLAS convention, the engine room emergency bilge water suction should connect with ____.A. the main S.W. pump or ballast pump that have the biggest outputB. the air-conditioning water pumpC. the ballast pumpD. the main S.W. pump20. The electrolyte in a lead-acid storage battery consists of distilled water and ____.A. calcium chlorideB. muriatic acidC. hydrogen chlorideD. sulfuric acid21.A rigid liner bore which is free of_____ is ideal and, with the provision of good lubrication, provides optimum running condition for the piston and piston rings.A. expansionB. distortionC. shrinkageD. elongation22. When reentering an engine room that has been flooded with CO2, the investigating team should initially ____.A. attempt to operate machineryB. enter from the lowest levelC. leave the access door partially openD. enter from the highest level23. A constant supply of electricity is essential for ship, and24. When making entries in the Oil Record Book, all quantities should be ____.A. recorded as cubic meters with a conversion to barrelsB. verified by the Chief EngineerC. recorded directly from the oil discharge monitorD. consistently recorded through the Oil Record Book in one specified unit (gallons, barrels, cubic meters)25. An increased pressure differential between the inlet and outlet of a strainer usually indicates the strainer is ____.A. holedB. dryC. cleanD. fouled26. AC and DC generators are similar in that they ____.A. both rectify the voltage before deliveryB. both supply three-phase powerC. are constructed at the same physical size for the same kilowatt ratingD. both generate alternating voltages27. If emergency welding repairs must be made to the upper area of a fuel tank, the tank and/or adjacent compartments may need to be ____.①gas freed ②inert ③filled with waterA. ①③B. ①C. ②③D. ①②③28. Which of the lists forms of heat transfer, if any, is illustrated by the flow of combustion gases through a boiler?A. Neither natural convection nor forced convection.B. Forced convection only.C. Both natural convection and forced convection.D. Natural convection only.29. The normal color of the exhaust gas of the diesel should be ____.A. blackB. achromatism or thin grayC. thin whiteD. sky-blue30. The ground terminal of a starter should be connected to ____.A. the commutatorB. the starter's frameC. the starter's mounting boltsD. the common ground point31. If a centrifugal pump vibrates and is noisy when operating, the cause could be ____.A. worn wearing ringsB. reversed pump couplingC. worn gland sealing shaftD. a bent shaft32. A diesel engine with a combustion chamber located between the crowns of two pistons is known as a(an) ____.A. double-acting engineB. horizontal acting engin eC. single-acting engineD. opposed pistons engine【关联题】After ensuring that the “nip” is correct the bearing clearance should be checked. The bearing cup and its associated half shells are removed leaving the other half in position. Two pieces of pure lead wire are placed across the journal at positions one-third and two-thirds along its length. The cap and shell are replaced and tightened up until the “nip” is zero. The cap and shell are then removed and the thickness of the lead wire measured by a micrometer. It is important to use only pure lead, which is very soft, and to choose a thickness of wire, which is greater than the normal allowable clearances but not greater than twice this amount. The clearance should be within the manufacture’s limits. As a guide these will be approximately 0.1 to 0.2 mm for white metal bearings and approximately 0.25 to 0.4 mm for copper-lead or tin-aluminum bearings with crankshaft journal diameters in the range from about 200 to 400m33. (4) Which of the following statements is true?A. The cap and shell are not to be tightened until the “nip” is zero.B. The cap and shell haven't been tightened when the “nip” is zero.C. The cap and shell are to be tightened until the “nip” is zero.D. The cap and shell begin to be tightened when the “nip” is zero.34. (3)According to the passage, the clearance for white metal bearing should be _______.A. within about 0.25 to 0.4B. in the range from about 0.1 to 0.2 mmC. larger than 0.2 mmD. less than 0.1 mm35. (2)According to passage, the thickness of the lead wire should be measured _______.A. until the cap and shell are removedB. after the cap and shell have been removed second timeC. when the cap and shell are being removedD. before the cap and shell are removed36. The lead wire should be put on the upper surface of the journal ________.A. verticallyB. longitudinallyC. transverselyD. angularity37. The main generators are connected to ____.A. section boardsB. emergency switch boardsC. main switch boardsD. distribution boards38. The resistance to the movement of the globule in oily water mixture depends on its size and the ____ of the fluid. A. pressure B. viscosity C. velocity D. gravity39. The term used to express the ignition quality of a particular fuel is_____.A. ignition index numberB. cetane numberC. octane numberD. volatility point40. Moisture in a D.C.motor would cause ____. A. short circuit B. speed up C. hunting D. slow down41.The switchboard of the emergency generator doesn’t have_____.A. voltmeter and change-over switchB. synchronous meterC. ammeter and change-over switchD. frequency meter42. In a diesel engine cooling water system, a pH of 6.0 indicates a(an) ____.A. slightly acidic conditionB. neutral condition of waterC. slightly alkaline conditionD. over treatment of water43. While paralleling two AC generators using synchronizing lamps only, both lamps will go dark when the generators are ____. A. grounded B. running at the same speed C. of the same polarity D. in phase44. When it is necessary to open a refrigeration system for repairs and the system will be open for more than a few minutes, the open ends of the system should be_____. A. purged B. evacuated C. dehydrated D. plugged45. If separating effect is not good, which measure should be taken?A. Improving impulse of water flow.B. Working at intervals and properly heatingC. Reducing water supply flow.D. Warming up to 80℃, increase water supply flow.46. _____ diesel engines of crosshead construction generally have two systems of lubrication: a total loss system feeding theA. High speed/ the cylindersC. Large crosshead type/ the cylinderD. Four-stroke/pistons and cylinders47. ______has a simultaneous suction action and discharge action.A. The gearwheel pumpB. The double acting displacement pumpC. The centrifugal pumpD. the single acting displacement pump48. Which of the following factors determines the interval between discharges of a self-cleaning separator?A. the volume of the bowlB. the separating temperatureC. the content of impurities in the fuel oilD. the rated throughput49. Which problems can occur if the brake band lining of a windlass brake becomes excessively worn?A. The brake's effectiveness will be reduced.B. The driving engine will over-speed.C. The clutch will overheat.D. The anchor will immediately drop.50. In reference to air conditioning, when air attains the maximum mount of moisture it can hold at a specific temperature, it is said to be ____. A. saturated B. condensed C. convected D. superheated51. The objectives of the ISM Code are to ensure ____.①safety at sea ②prevention of human injury or loss of life③avoidance of damage to the marine environment and to propertyA. ②③B. ①②C. ①②③D. ①52. In order to limit the introduction of alien species by ship, ____ was adopted on 13 Feb,2004 at the IMO.A. Revised MARPOL Annex ⅠB. International convention for the control and management of ships' ballast water and sedimentsC. Revised MARPOL Annex ⅡD.ISPS Code53. The Pork State Control officer may witness a fire drill carried out by the crew assigned to these duties on the ____.A. Navigation Log BookB. Oil Record BookC. Muster ListD. Engine Room Log Book54. The magnetic field is provided by electromagnets so arranged that adjacent poles have ____.A. the same polarityB. positive polarityC. opposite polarityD. negative polarity55. Which of the listed conditions can be considered as the single greatest cause of accidents?A. Excitement.B. Human error.C. Speed.D. Excessive knowledge or skill.56. A class “D” fire would be considered as burning ____.A. magnesiumB. electrical equipmentC. oilD. wood57. ____ is the main reason that reduces the power advantage of a two-stroke engine over a same size four-stroke one to about1.8 times.A. Short strokes in a circleB. Fewer strokes in a circleC. Inefficient scavengingD. Less fuel oil burning58. The drive motor will have a brake arranged to fail-safe, i.e. it will ____ the load if power fails or machine is stopped.A. takeB. putC. liftD. hold59. An independent bilge suction is required for ____.A. ballast tanksB. machinery space bilgesC. cargo hold bilgesD. sludge tanks60. Each of the engine cylinders is lubricated from a lubricator, driven by ____.A. a separated motorB. the engine's camshaftC. the engine's pistonD. a turbine【关联题】In view of the damage to the environment, and the cleaning-up costs which could arises as a result of a major oil spillage, it is important that all officers be aware of the consequences of oil pollution, and of the measures necessary to prevent it. Spills of oil on board need not result in pollution of the sea if simple safeguards are observed. Included in the various Company and Government anti-pollution measures are a series of checks which the United States Coast Guard require to be carried out when handling oil cargoes in the United State. These include plugging of scuppers, inspection of the line connections at the manifold, as well as sealing off the overboard discharge valves. The United States Coast Guard uses a check-list to ensure that no precaution is overlooked, and a similar check-list should always be used by ship s’ personnel at any port. Another important aspect of pollution precaution is good communication between the shore operatives and the ship’s officers over every aspect of the planned operation.61. (4) What does the Passage mainly talk about?A. A major oil spillageB. Oil pollution prevention measuresC. The consequences of oil pollutionD. The United States Coast Guard inspection.62. (3) There is no serious consequences of pollution caused by oil spillage if ____.A. oil pollution precautions are takenB. a good communication between ship and shore is keptC. everyone is aware of the consequencesD. the cleaning-up costs are not too large63. (2) Which is not mentioned in the Company and Government anti-pollution measures?A. Closing scuppersB. Covering the overboard discharge valves tightlyC. Good communication between Company and its shipD. Inspecting the line connections at the manifold64. (1)The USCG use a check-list so that____.A. ships’ personnel may have a similar copyB. they can inspect the ships one by one according to the list of shipsC. they can have a good understanding with the ship’s officersD. they will not miss any item to be inspected65. When the order given by officer may have bad results, the duty engineer should ____.A. inform the captain and not perform itB. stop the M/E immediately and then inform the captainC. inform the captain for a further considerationD. stop the M/E immediately and then inform the chief engineer66. Purging air from a hydraulic system is necessary when ____.A. adding small amounts of oil to the systemB. the system has been drained and then filled with new oilC. the system has been overheatedD. the system has been idle for a long period of time67. Which of the following actions should normally be taken during each watch when the auxiliary boilers is in operation?A. Blow-down the water gage glassB. Lift the safety valves by hand.C. Inspect and clean all solenoid valves.D. Test boiler water alkalinity68. The external circumference of a pair of main bearing shells is slightly larger than that of the bore of the housing which receives them. The difference is termed ____.A. nipB. gapC. lipD. nap69. In the process of engine stand-by, warm-up the engine usually through preheating______ of the diesel engine.A. water of the jacket water systemB. water of the cooling system and L.O.of the L.O.system.C. L.O.of the L.O.system.D. fuel of the F.O.system70. “Movement of engine no longer required” means “____”.A. Stop Engine.B. No Engine Revolutions.C. Stand-by Engine.D. Finished With Engine.71. The crank-room cover should not be opened until at least ____ minutes after the engine stops.A. 20B.10C. 15D. 3072. The additional mark ____ in the Classification Certificate for Machinery represents the propulsion apparatus is remotely controlled on the navigating bridge control station, and engine room is watched by duty personnel.A. AUT-1B.MCCC.AUT-0D. BRC73. The officer in charge of the engineering ____ the watch to the relieving officer if there is reason to believe that the latter is obviously not capable of carrying out the watch-keeping duties effectively.A. shall not take overB. shall hand overC. shall not hand overD. shall take over74. Which of the turbo-charging methods listed directs the exhaust gases to the turbine at fairly uniform velocity and pressure?A. Constant velocity.B. Axial flow.C. Pulse pressure.D. Constant pressure.75. The abbreviation “MIP” stands for ____.A. middle indicating powerB. mean indicate pressureC. mean indicated pitchD. middle indicated pressure76. During the dock repair, each sea valve must be disassembled, cleaned and ground well. Before it reassembled, the sealing surface between the valve and the valve seat should be checked by ____before reassembled.A. chief engineerB. surveyorC. the engineerD. the technique personnel of the shipyard77. An increase in rotor clearances in a rotary pump will ____.A. decrease pump capacityB. decrease pump cavitationC. decrease reaction ring clearanceD. increase discharge pressure78. In a vacuum boiling evaporator, the fresh water generated is pumped out by ____.A. a feed water pumpB. a condensate pumpC. an air ejectorD. a brine pump79. Heat which brings about a change in the physical state of a substance without a change in temperature is called____.A. ambient heatB. latent heatC. sensible heatD. specific heat80. Hydraulic control check valve is generally used to ____ in the marine hydraulic mechanism.A. permit oil flow with reversed directionB. control the back pressure of return oilC. act as relief valveD. lock the oil lines under some conditions81. The air supplied to a diesel engine is compressed to ____.①provide heat for the ignition of the fuel; ②decrease injection delay. A.② B. Neither①and②are correct. C.① D.①②82. ____ are generally formed in the frame of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end beading.A. DoorsB. CouplingC. BlindD. Aspirate gauze83. For the oil purifier, the water content of the oil is continuously_____ and when a pre-set maximum level is reached a total discharge function is automatically actuated.A. compensatedB. monitoredC. chargedD. computed84. STCW78/95 Convention describes that ____ are laid down for the certification of engineer officers in charge of a watch ina traditionally manned engine room, or the designated engineer in a periodically unmanned engine room.A. available minimum requirementsB. available maximum requirementsC. mandatory minimum requirementsD. mandatory maximum requirements85. V oltage will always lead current in a(an) ____.A. inductive circuitB. resistive circuitC. capacitive circuitD. magnetic circuit86. ____ have replaced derricks on many modern ships.A. CranesB. WinchesC. Hydraulic motorsD. Capstans87. The packing installed in the pump stuffing box is lubricated by ____.A. grease cupsB. leakage through the stuffing boxC. hand during installationD. gravity and feed oil cups88. ____ means the level for which minimum appropriate protective security measures shall be maintained at all times.A. Security level 3B. Security level 1C. Security level 4D. Security level 289. The frequency of an AC generator is controlled by the ____.A. exciterB. governorC. theostatD. capacitor90. Failure to remove calcium and magnesium from feedwater before if reaches the boiler can result in tube_____.A. scalingB. pittingC. erosionD. sludging91. A ship’s propeller operates most efficiently at rotational speed especially in the case of____ used in cargo ships.A. the controllable pitch propellerB. the constant pitch propellerC. the large diameter propellerD. the small diameter propeller92. The IOPP certificate is valid for ____. A. two years B. four years C. five years D. one years93. The pump has a constant stroke and the amount of fuel delivered is regulated by rotating ____ which has a specially arranged helical groove cut into it.A. the pump millerB. the pump cylinderC. the pump camD. the pump plunger94. When administering artificial respiration to an adult, the breathing cycle should be repeated about ____.A. 30 to 45 times per minuteB.12 to 15 times per minuteC. 45 to 60 times per minuteD. as fast as possible95. Which one is the “clear grounds” for a more detailed inspection?A. One of ship's certificates required is invalid.B. Damaged sanitary pump.C. Paint peeling off the uptake.D. No operation procedures for the oil separators.96. The most critical part of the bunkering operations, which can result in an oil spill, is when the ____.A. system is being lined upB. pumping operation is first startedC. hose joints are made upD. tanks are being topped off把答案写在相应的题号后：（第三套）姓名1-5: 6-10: 11-15: 16-20: 21-25:26-30: 31-35: 36-40: 41-45: 46-50:51-55: 56-60: 61-65: 66-70: 71-75:76-80: 81-85: 86-90: 91-96:。

英语试题一、单项选择题：1、These acid residues must be prevented from entering the crankcase, otherwise the lube oil would be_____.A. contaminatedB. emulsifiedC. deterioratedD. oxidated2、The ratio of the brake horsepower to the indicated horsepower of a diesel engine is its_______.A. thermal efficiencyB. mechanical efficiencyC. brake thermal efficiencyD. volumetric efficiency3、The cetane number of a diesel fuel oil indicates its________.A. viscosityB. acid contentC. heating valueD. ignition quality4、The greatest turbulence in a diesel engine cylinder is created by the_______.A. shape of the combustion chamberB. fuel injection spray patternC. cylinder swept volumeD. degree of penetration of the fuel oil droplets5、The projection on a shaft designed to change circular motion into up and down or back and fore motion iscalled_______. A. wheel B. crankshaft C. running D. cam6、A clearly visible benefit of RT-flex engines is their _______operation at all ship speeds .This is achieved bythe superior combustion performance.A. shocklessB. smokelessC. no vibrationD. noiseless7、A main bearing consists of two shells which are secured by means of studs and_______.A. tie rodsB. through boltsC. lead wiresD. bearing caps8、Compared to fourth-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of ______.A. less even torqueB. higher cylinder head temperatureC. fewer power strokes per revolutionD. greater weight/size requirements9、_______controls the fuel oil temperature in order to provide oil at the correct viscosity for combustion.A. The viscosity regulatorB. The temperature controllerC. The flow meterD. The pressure switch10、A lubricant often has to perform many duties in any situation ,in addition to its fundamental job of______.A. resisting oxidizationB. reducing frictionC. promoting moving speedD. developing inertia11、Shaker, circulation, and spray are the three general methods used in_______.A. pre-injection fuel oil treatmentB. lube oil filtrationC. lube oil purificationD. piston cooling12、Which of the diesel engine components listed increases air density and hel[s to improve engine operatingefficiency?________A. ImpellerB. Air bottleC. Air coolerD. Exhaust diffuser13、Each cylinder has one starting valve which is usually opened by air pressure and closed by________.A. nuts and boltsB. new jointsC. spring forceD. sealing rings14、Which of the listed governor characteristics will greatly affect the load sharing relationship betweenparalleled diesel generators?_______A. SensitivityB. PowerC. Speed droopD. Compensation15、A pyrometer is an instrument commonly used to measure_______.A. cylinder pressureB. flame intensityC. exhaust gas temperature D . crankshaft axial alignment16、After starting a diesel engine ,which of the listed operating conditions should be checked first?______A. Air box pressureB. lube oil pressureC. Exhaust temperaturesD. Raw water pressure17、A high temperature alarm or _______which will melt is used to guard against the explosion of compressorair pipelines.A. a flame trapB. a relief valveC. a fusible plugD. a bursting cap18、Great care is dedicated to the removal of ______from the scavenge air.A. gravityB. viscosityC. densityD. humidity19、Lubrication for the main reduction gears used with diesel engines is usually supplied by______.A. oil from the main engine sumpB. an independent lube oil systemC. the stern bearing head tankD. the stern bearing sump tank20、The maximum pressure developed by a waste heat boiler is determined by the main engine exhaust _____.A. gas compositionB. gas temperatureC. pressureD. timing21、The _______ is fitted in pair : one is the main valve ,the other is the auxiliary or standby.A. main steam stop valveB. auxiliary steam stop valveC. feed check or control valveD. blow down valve22、Improper maintenance of the fuel oil burner in an automatically fired auxiliary boiler, could resultin_____.A. increased fuel consumptionB. increased feed-water consumptionC. fuel pump failureD. combustion control system failure23、Burner ignition failure in an automatically fired auxiliary boiler would be caused by _______.A. a burned out solenoid in the oil supply valveB. high temperature excess airC. incorrectly setting the hot-well dump valveD. an incorrectly positioned burner snubber (缓冲器)relay24、Waterside scale in a fire-tube boiler may cause_________.A. increased heat transferB. fireside erosionC. high steam demandD. overheated tubes25、Throttling in the _______line of a centrifugal pump involves the risk of the pump cavitation.A. suctionB. exhaustC. pressureD. discharge26、Centrifugal pumps can be designed with a number of impellers ___to attain a high final delivery pressure.A. at two ends of the same shaftB. opposite each otherC. parallelD. in series27、Before disconnecting a joint in a pipeline, you should________.A. determine the size of the gasketB. hang a bucket under the jointC. have a first aid kit on handD. be sure no pressure exists in the line28、To thoroughly pump out the bilges using a horizontally mounted centrifugal pump ,the ______.A. pump must always be primedB. volute must impart a radial and rotary motion of the waterC. suction side connection must guide the liquid to the lantern ringsD. stuffing box should not be allowed any water leakage29、Which of the listed conditions can lead to cavitation in a centrifugal pump?________A. Vapor pockets formed in the suction flow streamB. Rough casing volute surfacesC. Worn wearing ringsD. Heavy fluid in the flow stream30、Refrigerant entering the compressor of a refrigeration system should be in which of the followingconditions?________A. Sub –cooled liquidB. sub- cooled vaporC. superheated vaporD. liquid31、______ is the circulation and refreshing of the air in a space without necessarily a change of temperature.A. RefrigerationB. Air conditioningC. VentilationD. Heating32、In a chilled water air conditioning unit using a reciprocating compressor, the refrigerating effect of theprimary refrigerant can be increased by________.A. increasing refrigerant pressure in the coilB. increasing chilled water flow through the coolerC. sub-cooling the refrigerant in the condenserD. superheating the refrigerant in the compressor33、If a plastic film insulation becomes damaged in air conditioning system, ______may form within the film.A. evaporationB. condensationC. liquefiesD. vaporization34、The resistance to the movement of the globule in oily water mixture depends on its size and the ______ofthe fluid.A. pressureB. velocityC. gravityD. viscosity35、Because the flow rate of supply water pump is too large ,oily water separator does not work well. Which ofthe following is not the reason?______A. the monitoring equipment is out of orderB. separating effect becomes badC. separating effect becomes bad and inner wall is contaminatedD. inner wall is contaminated36、Which of the following would not be burnt in an incinerator on board?________A. waste oilB. waste clothesC. oil ragsD. plastic garbage37、Concerning the incinerator’s operation ,which of the following is not correct?A. scavenging time should be more than 30 seconds before ignitingB. the oil temperature of waste oil tank is 80~100℃C. first igniting the incinerator with diesel oil , when the temperature of hearth is about 600℃, the wasteoil is drawn in.D. the ash from incinerator can be dumped into sea no distance limitation38、_______are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.A. anaerobic bacteriaB. acrobic bacteriaC. air bubblesD. disinfection chemicals39、A centrifuge arranged to separate two liquids is known as ________.A. an oily water separatorB. a purifierC. a centrifugal compressorD. a clarifier40、A centrifugal fuel oil purifier should be shut down if_________A. more sealing water is neededB. the cover clamp needs tighteningC. the purifier has a bad vibration when startedD. water is discharged from the overflow line41、If the bowl of a disk type centrifugal purifier when operated as a separator is not primed ,the _____.A. oil has a tendency to emulsify in the bowlB. purifier will act as a clarifier at the discharge ringC. oil will be lost through the water discharge portsD. oil solids will be deposited only at the intermediate top disk42、In a two –stage flash –type evaporator, excess brine in the first stage automatically passes_____.A. directly to the second stage feed heaterB. directly overboard through the brine coolerC. into the second stage flash chamberD. into the second stage vapor condenser43、In which of the areas listed would you expect to find the highest salt concentration in a flash evaporator?A. Distiller air injector cooling mediumB. Saltwater heater dischargeC. First-stage internal feed boxD. Second –stage internal feed box44、Hydraulic control check valve can be used to _________in the marine hydraulic mechanism.A. control the back pressure of return oilB. lock the oil lines under some conditionsC. permit oil flow with reversed directionD. act as relief valve45、The delivery rate of a variable strake axial piston hydraulic pump is controlled by varying the position ofthe_________. A. slide block B. tilting box C. pintle D. reaction ring46、The crane is usually mounted on a pedestal to offer adequate _________to the operator.A. timeB. spaceC. lengthD. visibility47、Which problems can occur if the brake band lining of a wildcat brake becomes excessively worn?A. The driving engine will over-speedB. The anchor will immediately dropC. The clutch will overheatD. The brake’s effectiveness will be reduced48、_________with various arrangements of barrels are the usual mooring equipment used on board ships.A. CranesB. WinchesC. CapstansD. Windlass49、Overheating of a hydraulic system may be a result of_________.A. changing pump discharge pressure in response to normal load variationsB. a high oil levelC. incorrect fluid viscosityD. continued slow re-circulation of the oil50、In the design of hydraulic piping and equipment consideration is given to minimize turbulence in thehydraulic fluid, as this will cause_________.A. molecular fluid vibrationB. energy lossesC. wide pressure variationsD. mechanical damage to control valves51、One factor that determines the frequency of an alternator is the_________.A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage52、What will be the phase angle relationship of a six-pole, three-phase, rotating field generator?A.60B.120C.180D.36053、To parallel an incoming machine to a running machine therefore it is n0ecessary to ensure firstlythat________.A. two frequencies must be brought into phaseB. the incoming machine accepts a small amount of loadC. the running machine must be unloadD. both voltages are equal54、The frequency of an alternator is controlled from the main switchboard by adjusting the________.A. frequency meterB. voltage regulatorC. governor controlD. sychroscope switch55、________is provided to alternators, in the event of prime mover failure to ensure that the alternator doesnot act as a motor.A. Reverse current protectionB. Reverse power protectionC. Synchronising deviceD. Frequency meter56、________is used to control, modulate, monitor and protect generator set.A. Control panelB. Load panelC. Paralleling panelD. Busbar57、Which of the listed sections of an emergency switchboard is used to supply power for alarm signals underemergency conditions?A. The generator and bus transfer sectionB. The 450 volt, 60 cycle, 3 phase busC. The 120 colt, 3 phase, 60 cycle busD. The 24 volt DC bus58、The ground terminal of a starter should be connected to_______.A. the common ground pointB. the starter’s frameC. the communicatorD. the starter’s mounting bolts59、Which of the electrical properties listed will always be the same for each component in a parallel circuit?A. ImpedanceB. CurrentC. ResistanceD. Voltage60、In a series circuit, which value will remain unchanged at all places in the circuit?A. VoltageB. CurrentC. ResistanceD. Inductance61、In an alternating current electrical system, a low system power factor is a direct sign of_______.A. wasted energyB. efficient operationC. a short in the exciter field windingsD. an excessive number of minor system grounds62、Accidental grounds in a shipboard electrical system must be repaired as soon as possible as theywill_______.A. result in immediate power outagesB. damage circuit breakersC. appear on the ground detection systemD. damage insulation and may cause outages63、If the main engine starting consecutively failed _______ times, the cause should be found and the troubleeliminated before next starting.A. 2B.3C. 4D. 564、The normal color of the exhaust gas of the diesel should be_______.A. achromatism or thin grayB. thin whiteC. sky-blueD. black65、After finished with engine, which of the following cannot be shut off by the duty engineer?A. fuel valveB. the main starting valveC. the sea chestD. the main sea water pump inlet valve66、Before the seas get rough, it is a good safety practice to_______.A. secure loose gearB. move quickly about the shipC. Increase lightingD. shutdown auxiliary equipment6、7A class ’C’ fire would occur in_______.A. beddingB. pipe insulationC. paintD. a generator68、The most likely place for a fire to start through the process of spontaneous combustion is in_______.A. an electrical switchboardB. the pressure tanksC. the fuel oil tanksD. the oily rag bin69、Which of the fire extinguishers listed is to be weighed annually and sent ashore for the fire main system?A. FoamB. Soda acidC. Dry chemicalD. Carbon dioxide70、Which of the following components provides a direct source of seawater for the fire main system?A. Rose boxB. Sea chestC. Sluice valveD. Fire pump stuffing box71、When administering artificial respiration, it is of the utmost importance to_______.A. use the mouth-to-mouth methodB. clear airwaysC. use rhythmic pressure methodD. check the injured person’s heartbeat72、Obviously, for a given fuel oil, its pour point is_______its cloud point.A. lower thanB. higher than C, as same as D. better than73、_______, where the ship is docked for hull coating renewal, and for any other required underwater workto be carried out, when the opportunity is taken to make other repairs.A. Voyage repairsB. Routine dockingC. Damage repairsD. Conversion74、When the dock is refilled with water after docking repair, the first work which should be done by enginccdepartment is_______.A. igniting auxiliary boilerB. releasing air in sea water systemC. starting generatorD. cut off shore power75、The correct tightening is obtained by the use of _______to measure the extension given to the bolts.A. pressure gaugesB. thermometersC. stretch gaugesD. bridge gauges76、In the Oil Record Book, a comprehensive list of operational items are grouped into operational sections.Each section is codified by a an_______.A. numberB. abbreviationC. letterD. number, abbreviation and letter7、7Under MARPOL Code, the ship to which it applies has to carry_______.A. an International Ship Security CertificateB. an International Oil Pollution Prevention CertificateC. a Safety Management Certificate D, an International Ballast Water Management Certificate78、Which one is not the‘clear grounds’ for a more detailed inspection?A. the master and the chief engineer are unable to communicate effectivelyB. serious corrosion on the hullC. damaged sanitary pumpD. one page missing in the oil record book79、”Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a_______.A. substandardB. standard shipC. over-standard shipD. reference ship80、STCW 78/95 Convention shall apply to seafarers _______on board seagoing ships entitled to fly the flag ofa party.A. servedB. servingC. surveyedD. surveying81、The officer in charge of the engineering _______the watch to the relieving officer if there is reason tobelieve that the latter is obviously not capable of carrying out the watch-keeping duties effectively.A. shall take overB. shall not take overC. shall hand overD. shall not hand over82、When the order given by bridge may have bad results, the duty engineer should_______.A. inform the captain for a further considerationB. inform the captain, and then inform the chief engineerC. stop the M/E immediately, and then inform the chief engineerD. stop the M/E immediately, and then inform the captain83、The scuppers should be plugged_______.A. only if fixed containment is not usedB. only if portable containment is not usedC. only if fixed containment drains are openD. whenever the vessel is being bunkered84、If it becomes necessary to pump bilges while a vessel is in port, which of the following procedures shouldbe followed?A. Pump only if the discharge is led to a shore tank or bargeB. Pump only during the hours of darknessC. Pump only on the outgoing tideD. Pump only as much as is necessary85 The SOLAS convention prescribes that in the fire fighting drill the duty engineer should start the firepump and supply deck water in ______minute(s).A. 5B. 3C.2D. 186、According to the ISM CODE, the “person” in the phrase “to designate a person or persons ashore havingdirect to the highest level of management refers to______A. the manager of the shipping companyB. the master of the shipC. the designated person on board shipD. the designated person ashore87、In order to strengthen maritime security and prevent and suppress acts of terrorism against shipping .anew, comprehensive security regime for international shipping was set to enter force in July 2004,The new regime is ________.A. ISM CodeB. ISPS CodeC. FSS CodeD. IBC Code88、In the voyage, when carrying out abandon ship drill, ________should be test every time.A. the emergency lighting system for muster and abandon shipB. air/oil emergency shut-downC. M.E. emergency operationD. main/auxiliary steering gear changing二、关联题：Scavenge port inspection provides useful information about the condition of cylinders, pistons and rings , at low expense .The inspection consists of visually examining the piston ,the rings and the lower part of the cylinder liner, directly through the scavenge air ports. To reduce the risk of scavenge box fire, remove any oil sludge and carbon deposits in the scavenge air box and receiver in connection with the inspection.The port inspection should be carried out at the first stop after a long voyage, e.g. by anchoring if possible ,to obtain the most reliable result with regard to the effectiveness and sufficiency of the cylinder lubrication and the combustion cycle(complete or incomplete).A misleading result may be obtained if the port inspection is carried out after arrival at harbor, since manoeuvring to the quay and low –load running , e.g. river or canal passage, requires increased cylinder oil dosage , I .e. the cylinders are excessively lubricated .Further ,during low load ,the combustion cycle might not be effective and complete as expected, due to the actual fuel oil qualities and service (running ) condition of the fuel injection equipment. It is highly recommended to take this information into consideration.89、The components of an engine involved in normal scavenge port inspection comprise_______.①the piston ②piston rings ③the lower part of the cylinder liner ④the fuel injectorA. ①②B. ①②③④C. ②③D. ①②③90、If the scavenge box had too much oil sludge and carbon deposits ,what would occur?A. excessive cylinder oil consumptionB. the scavenge box fireC. the crankcase explosionD. excessive wear of the cylinder liner91、In order to obtain the most reliable result with regard to the effectiveness and sufficiency of the cylinder lubrication and the combustion cycle, when should the scavenge port inspection be carried out?_______A. at the first stop after a long voyage , e.g. by anchoring if possibleB. at the first stop after arrival at harborC. at the first stop after low load runningD. at the first stop after passing river or canal passage92、Under what condition that the scavenge port inspection can gain a misleading result?①after passed through Panama Canal ②after got alongside shanghai quay③after arrival shanghai roadstead(外锚地)A. ②③B. ①②C. ①②③D. ①第二组Current regulations with respect to the discharge of oily water set limits of concentration 15parts per million. A monitor is required to measure these values and provide both continuous records and an alarm where the permitted level is exceeded.The principle used is that of ultra- violet fluorescence. This is the emission of light by a molecule that has absorbed light .During the short interval between absorption and emission, energy is lost and light of a longer wavelength is emitted. Oil fluoresces more readily than water and this provided the means for its detection.A sample is drawn off from the overboard discharge and passes through a sample cell. An ultra –violet light is directed at the sample and the fluoresces is monitored by a photoelectric cell. Where an excessive level of contamination is detected an alarm is sounded and diverting valves are operated. The discharging liquid is then passed to a slop tank.93、The passage is mainly about_______.A. oily water separatorB. current regulations related to oil pollutionC. oil in water monitorD. the principle of ultra –violet fluorescence94、A monitor can obtain all of the following functions except_______.A. measuring oil content valuesB. providing continuous recordsC. lowering the oil content below 15 ppmD. providing an alarm unit warning of levels of discharge in excess of 15 ppm95、From the passage ,we can learn that the ultra-violet fluorescence is a kind of _______.A. oil sampleB. lightC. photoelectric cellD. alarm unit96、A sample is drawn off from _______ and passes through a sample cell.A. bilge waterB. discharge of oil separatorC. slop tankD. discharge of oily water separator。

轮机英语补充题库一最新《轮机英语》考证补充题1. There are four main types of marine engines: and the marine nuclear plant.A. the diesel engine, the steam turbine and dual-fuel engineB. the diesel engine, the steam turbine and the gas turbineC. the gas-diesel engine, the gasoline engine and the diesel engineD. the gasoline engine, the diesel engine and the steam turbine注：船用发动机有四种主要类型：柴油机、汽轮机、燃气轮机和船舶核动力装置，选B。

2. In crosshead engines in good condition the cylinder oil consumption may usually be .A. bellow 0.1 g/hp. hr.B. above 10 g/hp. hr.C. below 1.0 g/hp. hr.D. zero注：十字头式柴油机在状态良好的情况下气缸耗油率低于1.0 g/hp. hr., 选C。

3. The is the power available at the output shaft of the engine and can be measured using a torsionmeter or with a brake.A. electric powerB. shaft powerC. indicated powerD. mechanical power注：轴功率是指发动机输出轴上可获得的功率，可以使用扭矩表或刹车来测量，选B。

中华人民共和国海事局2007年第1期海船船员适任证书全国统考试题(总第42期)科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题, 每题10分。

一、单项选择题1.The ______engine is used for alternators and some times for main propulsionwith a gearbox to provide a propeller of between 90 to 120 rpm.A. four-strokeB. two-strokeC. slow speedD. reversible2.The discharge flow of a reciprocating pump is ______.A. steadyB. in pulsationC. continuousD. large3.The cetane number of a diesel fuel oil indicates its ______.A. viscosityB. acid contentC. heating valueD. ignition quality4.Always ensure that the turning gear is______, even at the quay, the wave fromother ships may turn the propeller and thus the engine.A. disengagedB. engagedC. assembledD. disassembled5.Camshafts are usually driven by timing gears or ______.A. push rodsB. chain drivesC. rocker armsD. flywheels6.The cylinder oil is pumped into the cylinder (via non-return valves) when thepiston rings pass the lubricating orifices, during______.A. the upward strokeB. the downward strokeC. the power strokeD. the suction stroke7.The total starting air capacity required for reversible main engines is to besufficient for a least ______.A. six consecutive(连续的) startsB. eight consecutive startsC. ten consecutive startsD. twelve consecutive starts8. A dirty diesel engine oil filter element can best be detected by ______.A. visual inspection of the elementsB. the pressure drop across the filterC. high lube oil sump temperatureD. decrease in oil viscosity from the filter9.Before a marine diesel engine is started the cylinders and pistons must be ______.A. cooled to appropriate temperatureB. warmed up gradually to appropriate temperatureC. opened up and renewedD. ground and polished10. A controllable pitch propeller on a diesel driven vessel eliminates the need for __.A. friction clutchesB. disconnect clutchesC. reversing gearsD. reduction gears11.The maximum pressure developed by a waste heat boiler is determined by themain engine exhaust ______.A. gas compositionB. gas temperatureC. pressureD. timing12.______continuously extract the crankcase atmosphere, via a pipe system, andmove it past a sensitive and accurate opacity (不透明)measuring track.A. The oil mist detectorsB. The smoke detectorsC. An oily water monitorD. Oil discharge monitoring and controlling system13.The water in a steaming auxiliary boiler should be tested daily for ______.A. dissolved oxygenB. chloridesC. sludgeD. dissolved nitrogen14. A firebox explosion in an automatically fired auxiliary boiler may be the result of_____.A. excessive purging before lighting offB. insufficient trail for ignition periodC. a faulty transformer in the ignition circuitD. insufficient purging after lighting off15. A feed pump for an auxiliary boiler might lose suction if the ______.A. boiler water level is lowB. feed-water is too hotC. boiler steam demand is lowD. feed-water is too cold16.The gear and screw pumps are classified as______.A. variable stroke pumpsB. multistage pumpsC. positive displacement pumpsD. triple-ported pumps17.The pressure of a liquid leaving the pump can be referred to as the ______.A. total headB. discharge headC. net positive suction headD. suction head18.Which of the valves listed will be cycled from fully open to fully closed when thehandle is turned 90 degree?A. A rising stem gate valveB. A globe stop valveC. A check valveD. A butterfly valve19. A pump shaft that is bent or distorted should normally be ______.A. repaired by a suitable welding processB. straightened by applying heat and torsionC. reconditioned by metallizing and machiningD. replaced with a satisfactory spare20. A centrifugal pump may fail to deliver water when first started if the ______.A. water seal pipe is pluggedB. pump is not primedC. seal ring is improperly locatedD. impeller is flooded121.Which of the following conditions must exist for heat to flow from one object toanother?A. The two objects must be in physical contact.B. The two objects must be the same size.C. There must be an existing temperature differential.D. There must be an existing weight differential.22.The dew point of air is reached when the wet bulb temperature is ______.A. twice the dry bulb temperatureB. 10℃ above the dry bulb temperatureC. 5℃ above the dry bulb temperatureD. equal to the dry bulb temperature23.If air at 95 ℃ dry bulb temperature and 50% relative humidity is conditioned to75 ℃ dry bulb temperature and 50% relative humidity, it is an example of _____.A. cooling onlyB. cooling and humidifyingC. cooling and dehumidifyingD. adiabatic(绝热的) cooling24.In order to achieve greater dehumidification(除湿) with an air conditioningsystem, you should ______. I. reduce the cooling coil temperature II. increase the re-heater temperatureA. I onlyB. II onlyC. Both I and IID. Neither I nor II25.Oily water separators are used to ensure that ships don't discharge oil whenpumping out ______.A. ballast waterB. boiler waterC. bilge waterD. sewage water26.When started, a complete oily water separating unit is first filled______. The oilywater mixture is then pumped through the inlet pipe into the coarse separatingcompartment.A. with dirty waterB. with clean waterC. by oily waterD. by mixed water27.Which is the pollution prevention equipment?A. booster pumpB. evaporatorC. incineratorD. cooler28.The oil sludge is burnt in the ______onboard. I’ll show you the ashes.A. boilerB. main engineC. auxiliary engineD. incinerator29.Most marine biological sewage treatment plants consist of all the followingstatements except ______.A. aeration tanksB. settling tanksC. disinfection agentD. anaerobic bacteria (厌氧菌)30.Great care is dedicated to the removal of _____ from the scavenge air.A. gravityB. viscosityC. densityD. humidity31.Dirty oil must be _____ before being used again.A. mixed with clean oilB. purifiedC. heatedD. strained32.When a vacuum boiling evaporator works, the hot jacket water will pass over thetube stack and ___ the sea water passing through the tubes.A. disposeB. dissolveC. heatD. dissipates33.When securing a flash-type evaporator for an extended period of time, youshould ______.A. fill the unit with saltwaterB. fill the unit with descaling compoundC. completely drain the unitD. tightly seal the unit to exclude air34.Among the basic categories of equipment, which of the following are used toallow the hydraulic energy to be controlled?A. hydraulic pumpsB. valvesC. hydraulic cylindersD. hydraulic motors35.Positive displacement, helical gear(斜齿轮) pumps are well suited for pumpingoil because ______.A. stuffing boxes eliminate the leakage problems usually associated with othergear pumpsB. it is not necessary to closely maintain design clearances with this pumpC. they are essentially self-priming and produce a high suction liftD. these pumps are designed with extreme tooth angles36.The oil in a cargo winch gear box should be sampled periodically(周期性地) to______.A. prevent the gear box from leakingB. prevent the oil from becoming inflammable(易燃的)C. make sure it has not become contaminated(污染)D. make sure the motor bearings are lubricated37.If an anchor windlass has been idle for some time, you should ______.A. repack all valve stemsB. lubricate it prior to useC. replace the foundation boltsD. balance the warping heads38. A mooring winch should be equipped with mechanical brakes capable of holding______.A. half the breaking strength of the mooring lineB. the full breaking strength of the mooring lineC. the maximum expected tension(张力) of the mooring lineD. 50% over the working tension of the mooring line39.Hydraulic cranes must be properly warmed-up before being operated because __.A. warm-up allows the hydraulic system to become charged with oilB. warm-up allows the relief valves to be properly testedC. hydraulic strainers operate only during the warm-up periodD. hydraulic fluid must be at the proper viscosity40.The current flowing first in one direction and then in another is called ___current.A. a rushB. an alternatingC. a directD. an exciting41.The frequency of an alternator at a given RPM is determined by the ______.A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage242.While paralleling two AC generators using synchronizing(同步的) lamps only,both lamps will go dark when the generators are ______.A. running at the same speedB. groundedC. of the same polarity(极性)D. in phase43.The load sharing characteristics of two diesel generators operating in parallel aremostly dependent on their governor ______.A. load limit settingsB. idle speed settingsC. speed limit settingsD. speed droop settings44.Electric insulation is made of organic substances and so gradually _____with age.A. deterioratesB. increasesC. are fouledD. becomes better45.The main generators are connected to ______.A. distribution boardsB. section boardsC. emergency switch boardsD. main switch boards46.The operation of _____ two alternators requires the voltages to be equal and alsoin phase.A. controlB. series-mountingC. runningD. paralleling47.______is a machine by which electrical energy is transformed into mechanicalenergy.A. An alternatorB. An electric motorC. A diesel engineD. A main switchboard48. A ground in an electrical circuit outside the engine room ______.A. cannot be detected under normal conditionsB. is of no consequence to engineering personnelC. is indicated at the branch circuit breaker panelD. is indicated by the ground detecting lamps on the main switchboard49.Time delayed or delayed action-type fuses are designed to ______.A. prevent grounds in branch circuitsB. prevent opens in motor circuitsC. permit momentary overloads without meltingD. guard lighting and electronic circuits50.When voltage and current developed in an AC circuit reach their peak values atthe same time, the power factor is ______.A. laggingB. leadingC. maximumD. minimum51.When there is a fire in a large electric motor, normally the very FIRST step is to____.A. secure the electric supplyB. ventilate area to remove smokeC. start the fire pump and lead out hoseD. apply foam52.Before “stand by” is rung on the engine telegraph, it is usual to give the maindiesel engine a brief trial ______ahead and astern.A. with powerB. on powerC. with airD. on air53.Bridge orders must be ______and a record of any required changes in speed anddirection should be kept.A. slowly carried awayB. carried out with a period of delayC. promptly carried outD. paid by the captain54.After the order ' ______' is given, the air system is shut down, the turning gearput in.A. Finished With EngineB. Stop The EngineC. Stand-by EngineD. Slow-down Engine55. A tank has been sealed and unventilated(不通风的) for a long period of time.Which of the following conditions does this indicate?A. The tank is safe to enter.B. The tank is especially dangerous to enter.C. Carbon monoxide(一氧化碳) is present.D. Water vapor present when the tank was sealed has oxidized(使氧化).56.Fires involving combustible metals are classified as ______.A. class 'A' firesB. class 'B' firesC. class 'C' firesD. class 'D' fires57.The three basic components of a fire are chain reaction, heat, fuel, and ______.A. carbon monoxideB. oxygenC. carbon dioxideD. any gaseoussubstance58.CO2 extinguishes a fire by __________.A. a blanket of bubbles formed on the surface of the fireB. smotheringC. isolating the heat from the fuelD. cooling59.Seawater may be used for drinking water ______.A. at a maximum rate of two ounces(盎司) per dayB. after mixing with an equal quantity of fresh waterC. if gather during or immediately after a hard rainD. under no circumstance60.Obviously, for a given fuel oil, its pour point is ______its cloud point.A. lower thanB. higher thanC. as same asD. better than61.Now that the valve is not worth ______, I suggest it ______.A. to repair/renewingB. repairing/renewingC. to repair/ be renewedD. repairing/be renewed62.When a vessel is in dry-dock, the vessel's engineers should ______.A. examine the condition of the propellerB. chip and paint all hull protection zincsC. install new docking plugs in all cofferdamsD. inspect the hull for hogging or sagging363.The additional mark ______in the Classification Certificate for Machineryrepresents the propulsion apparatus is remotely controlled on the navigatingbridge control station, and engine room is watched by duty personnel.A. BRCB. MCCC. AUT-0D. AUT-164.Oil Record Book Part I shall be provided to ______.A. every oil tankerB. every ship of 400 tons gross tonnage and aboveC. every shipD. any ship65.“Inability to provide for the first watch at the commencement of a voyage and forsubsequent relieving watches persons who are sufficiently rested and otherwise fit for duty.” is considered to be one of the detainable deficiencies(缺乏) under ______.A. the SOLAS ConventionB. the MARPOL ConventionC. the STCW ConventionD. the LOAD LINE Convention66.The Port State Control officer may witness a fire drill carried out by the crewassigned to these duties on the ______.A. Navigation Log BookB. Engine Room Log BookC. Oil Record BookD. Muster List67.When deciding the composition of the engineering watch, which may include_____appropriately, many factors shall be taken into account.A. satisfied engineersB. qualified ratingsC. satisfied chief engineerD. qualified chief engineer68.During an engine room watch if immediate action is necessary to ensure safety ofthe ship, its machinery and crew, ______.A. the chief engineer must be informed at firstB. the captain must be informed at firstC. it must be taken by the duty engineerD. the generator engine must be stopped69.One of the methods NOT usually allowed in cleaning up oil spills in the UnitedStates is ______.A. skimmersB. strawC. dispersantsD. sawdust70.According to the international regulations concerning the prevention of pollutionof sea areas from ships, the disposal into the sea of all plastics is ______.A. welcomeB. admitted in some special sea areasC. prohibitedD. acceptable71.In cleaning up an oil spill, the use of chemical agents would ______.A. absorb the oil for easy removalB. remove the oil from the waterC. disperse(分散) or dissolve the oil in the waterD. not affect the oil72.The main objective of the SOLAS Convention is to specify ______for theconstruction, equipment and operation of ships, compatible their safety.A. at most referencesB. at least referencesC. maximum standardsD. minimum standards73.These acid residues must be prevented from entering the crankcase, otherwise thelube oil would be _______ .A. optimizedB. emulsifiedC. contaminatedD. oxidated74.The ship security officer shall have knowledge and have received training, takinginto account the guidance given in Part B of______.A. the ISM CodeB. the ISPS CodeC. the IBC CodeD. the IGC Code二、关联题（关联题题干下有4个小题，每小题4个选项）The clearly visible benefit of RT-flex engines is their smokeless operation at all ship speeds. This is achieved by the superior combustion performance with the common-rail fuel injection.This system maintains the fuel injection pressure at the optimum level right across the engine speed range, ensuring optimum combustion under all operating conditions. In addition, a selective shut-off of single injectors at very low speeds and an optimized exhaust valve timing help to keep smoke emissions below the visible limit.Sulzer RT-flex engines also have the advantage of steady running at lower speeds than engines with mechanically-controlled injection. They can run very steadily, andwithout smoking, at 10-12% of nominal speed, which for the RT-flex 60C is about 10-14rpm. This is made possible by the precise control of injection, together with the higher injection pressures achieved at low speed, and the sequential shut-off injectors.75.According to above massage, the advantage of common-rail injection is______.A. smokeless operationB. shockless operationC. noiseless operationD. no vibration operation76.According to above massage, RT-flex engine can optimize______.① fuelinjection pressure ② combustion ③ exhaust valve timingA.①②B. ①②③C..③D. ②77.The key feature of the Sulzer RT-flex system is that it gives complete freedom inthe _____ and operation of fuel injection and exhaust valve actuation.A. meteringB. timingC. controlD. using78.The RT-flex engine can run at very low speed, this is made possible byfollowing things except _______.A. the precise control of injectionB. the higher injection pressuresC. the optimized exhaust valve timingD. the sequential shut-off injectors4三、中译英（共2题，请将答案写在答题纸上）79、（轮机日志）上午10时30分，由于不明原因运行中NO.1发电机跳闸，导致全船失电, NO.2发电机自动起动恢复正常供电。

轮机英语会话评估问答题参考答案（第四版）第一章公共英语1. How many important canals are there all over the world?(There are two important canals all over the world, the Panama Canal and the Suez Canal.)2. How long have you worked on board?(I have worked on board for 10 years.)3. What is your marital status? How many departments are there on board?(I am single. There are three departments on board.)4. How many people are there in your family? Are you married?(There are three people in my family. No, I’m single.)5. How many countries have you ever been to?(I have ever been to four countries.)6. Which classification society is your ship registered with?(Our ship is registered with CCS.)7. Please tell me the minimum safe oxygen percentage for the safety of the workers in anenclosed space.(The minimum safe oxygen percentage for the safety of the workers in an enclosed space is 18%.)8. When did you begin to work on board? What kind of ship have you worked on?(I began to work on board in 2005. I have worked on container ship.)9. Can you tell me what is the most important thing for a seafarer?(Safety is the most important thing for a seafarer.)10. What kinds of main engine and generator engine have you worked on?(Main engine: Sulzer, Man B & W engines and so on. Generator engine: Yama, Watsila Diesel and so on.)11. Have you worked any ship that caused damage in critical equipment?(No, I have not worked any ship that caused damage in critical equipment.)12. How do you make your maintenance schedules?(It is based on ship’s Planned Maintenance System (PMS定期维修制) and the machinery running hour records.)13. Could you list international conventions concerning marine shipping?(Yes, STCW, SOLAS, MARPOL and so on.)14. Could you tell the usages of the STCW convention?(To provide the international standards of training, certification and watchkeeping for seafarers.)15. What is the purpose of Classification Society? Could you list some of them?(The purpose of Classification Society is to evaluate the condition of the ship, the management system of shipping company and its ships. Yes, CCS, ABS, NK, DNV and so on.)16. Could you list different kinds of ship's surveys?(Yes, annual survey, docking survey, special survey, etc.)17. What does UMS stand for? Have you served UMS?(UMS stands for Unattended Machinery Space. Yes, I have served UMS.)18. Have you even experienced PSC inspection? Where and when was your last inspection?(Yes, I have ever experienced PSC inspection. It was in Hamburg last month.)19. What should be paid attention to in the overhaul of a cylinder?(Every operation must comply with the precaution measures regulated in the SMS.)20. Before entering an enclosed space such as ballast tank, what action will you take?(I will vent the space and check the oxygen content.)21. Which certificate do you have now?(I have the Fourth Engineer Certificate now.)第二章机舱日常事务1. Please introduce one type of the main engine.(The main engine is large size, slow speed, two-stroke, crosshead type with turbo charging system.)2. Why is the two-stroke engine widely used on board ship?(Because of its long life, low cost and high reliability, the two-stroke engine is widely used on board ship.)3. Please introduce three moving parts of marine diesel engine.(The three moving parts of marine diesel engine include piston, connecting rod and crankshaft, etc.)4. Please introduce four fixed parts of marine diesel engine.(The four fixed parts of marine diesel engine include bedplate, frame, cylinder, and scavenging air box, etc.)5. What is the foundation of diesel engine?(The foundation of diesel engine is bedplate.)6. What are the function and feature of the tie rods?(The function is to hold the bedplate, frame and cylinder block together. The feature is long and good tensioning strength.)7. What is used for connecting the piston rod and connecting rod?(Crosshead is used for connecting the piston rod and connecting rod.)8. What is the hot work?(The hot work refers to works like gas welding, electric welding, burning and so on.)9. Please introduce fuel injection process of electronically controlled main engine.(It can change the injection timing and injection pressure according to the load.)10. Please introduce dual fuel technology of main engine.(This kind of main engine can burn both natural gas and diesel oil.)11. How to control fuel oil viscosity of main engine?(Fuel oil viscosity is controlled by controlling the fuel oil’s temperature.)12. Please introduce two sub-systems of the fuel oil system.(The two sub-systems of the fuel oil systems are fuel supply and fuel injection systems.)13. Please speak out the function of the fuel oil viscosity regulator.(The functions of the fuel oil viscosity regulator is to control the viscosity of fuel oil.)14. How does the fuel oil viscosity regulator work?(The fuel oil viscosity regulator works b y controlling and adjusting the fuel oil’s temperature.) 15. Please tell at least three composition of fuel oil.(Three composition of fuel oil are sulphur, carbon and hydrogen.)16. Please name at least three of main factors to select a fuel oil.(Three of main factors to select a fuel oil are viscosity, water content, flash point, setting point, calorific value and so on.)17. When do you clean the fuel oil filters?(When the pressure drop before and after the filter is excessive, the fuel oil filter should be cleaned.)18. How do you change diesel oil into fuel oil?(When change diesel oil into fuel oil, open the steam valve, heat fuel oil to proper temperature and open the fuel oil valve slowly.)19. How do you change fuel oil into diesel oil?(When change fuel oil into diesel oil, shut the steam valve, decrease the fuel oil temperature, and open diesel oil valve.)20. What does VIT stand for?(VIT stands for Variable Injection Timing.)21. What’s the function of the fuel oil separator?(The functions of the fuel oil separator is to remove water and impurities from fuel oil.)22. How do you drain off air of the injection pump?(The air is drained off from the injection pump by using the venting screw.)23. What are the two types of the cooling system?(The two types of the cooling systems are the closed cooling system and the open cooling system. / The fresh water system and the sea water system.)24. What's the function of the head tank in the cooling water system?(The functions of the head tank in the cooling water systems is to allow the expansion of water, make up water, release air, etc.)25. Please introduce the open cooling system.(In the open cooling system the sea water is drawn from the sea to circulate the individual coolers for lube oil and fresh water and then discharged overboard.)26. Please introduce the closed cooling system.(In the closed cooling system the fresh water is circulated through the engine to cool the cylinder jackets, cylinder heads, exhaust valves and turbo-blowers.)27. Please introduce the central cooling system.(The central cooling system has only one large sea water circulated cooler which cools a supply of fresh water which then circulates to the other individual coolers.)28. What's the advantage of the central cooling water system?(The advantage of the central cooling water system is the corrosion problems are greatly reduced.)29. What is the usual coolant in the marine diesel engine?(Fresh water is the usual coolant in the marine diesel engine.)30. Why sea water is not used directly as a coolant in diesel engine?(Because sea water is corrosive, it is not used directly as coolant in diesel engine.)31. What's the disadvantage of water-cooling piston?(Cooling water leakage can pollute the lube oil.)32How do you heat the main engine?By circulating the cooling water which is heated to proper temperature.33 What’s the advantage of oil cooling piston?The advantage is the same oil also can be used for lubrication and any leaks will not cause corrosive problem.34. What's the function of the lubricating oil in main engine?(To reduce friction and wear, remove heat, neutralize acid conditions, wash away wear detritus and so on.)35. How do you clean the lube oil filters?(By washing with diesel oil and then drying with compressed air.)36. Why must the cylinder oil have alkalinity?(To neutralize acid conditions.)37. What’s the function of the cylinder oil?(Lubrication, sealing, neutralizing the acidic products of combustion, cleaning and removing heat.)38. How do you start the air compressor?(Check lube oil and cooling water first, then start with the unloading device.)39. What do you pay attention to when you stand by engine?(Check various pressure and temperatures, warm up the engine, turn the engine with turning gear and so on.)40. Do you know the reasons why the engine does not start on air?(Too low starting air pressure, incorrect timing of starting air valve, etc.)41. What should you periodically do for the air reservoir?(Drain oily water.)42What is the function of the turning gear?(To enable positioning of the engine parts for overhaul and turn the main engine before starting and after stopping.)43. How do you grind the valve plate of air compressor?(Grind it in the path of “8” shape.)44 what is the sequence of the four strokes?The four strokes are suction,compression, expansion and exhaust.45 what is called a working cycle?It refers to the operation between the two injections46 . What is the function of the governor?(To control the engine speed by adjusting the fuel quantity.)47What is the feature of the governor?(It can automatically maintain the constant speed of the engine and regulate speed fluctuation.) 48How do you operate the main engine in cold weather?(To warm up the main engine first.)49 Why is the air exchanging quality of four-stroke engine more than that of two-stroke engine? (The four-stroke engine has an enough overlap between inlet valve opening and exhaust valve closing.)50 . What is used for sealing between the crankcase and scavenging air box?(Piston rod stuffing box is used for sealing between the crankcase and scavenging air box .)51 What’s the function of gas exchange in diesel engine?(the function of gas exchange is to Supply fresh air and removing exhaust gases.)52 What’s the function of supercharging in diesel engine?(the function of supercharging is To increase output power.)53 Do you know why the diesel engine exhausts black smoke?(it’s because the Troubles in the fuel injection system, such as bad fuel oil quality, poor fuel atomization.)54 Do you know why the diesel engine exhausts blue smoke?(it’s because the Lube oil leaks into the combustion chamber.)55 Do you know why the diesel engine exhausts yellow smoke? (Maybe the fuel oil containsexcessive sulphur.)56Do you know why the diesel engine exhausts white smoke?(Maybe because fresh water leaks.)57 . How do you measure the clearance of the main bearings?(the clearance of the main bearings is measured By means of lead wire.)58 . How do you measure the crank deflection of the main engine?(the crank deflection of the main engine is measured By means of crank deflection gauge.)59 How do you decide to overhaul the main engine generally?(we decide to overhaul the main engine generally According to the specific working condition and requirement of the instruction book.)60 (With disc cleaner.)60. What should be prepared before disassembly of cylinder for main engine / auxiliary engine?(we should prepare special tools, drain off the residual oil and water, and verify the duties of personnel involved.)61. What does CPP stand for?(CPP stands for controllable pitch propeller.)62. Why do you often carry out the water treatment for the boiler?( The water treatment for the boiler is often carried out in order to reduce scale formation and prevent corrosion.)63. What boiler is used on a motor ship at sea?(The exhaust gas boiler is used on a motor ship at sea.)64. What boiler is used on a motor ship in port?(The donkey boiler is used on a motor ship in port.)65. What is the function of the soot blower?(The soot blower is used to blow away soot and products of combustion from the tube surfaces.)66. What is used to connect a diesel engine and a generator?(A diesel engine and a generator are connected by coupling.)67. What type is the most common marine refrigeration?(Compression refrigeration is the most common type of marine refrigeration.)68. Please introduce four components required for a compression refrigeration system.(The four components required for a compression refrigeration system are compressor, condenser, evaporator and expansion valve.)69. How do you fill Freon 22 into the refrigeration system?(Freon 22 is filled into the refrigeration system through the charging line.)70. Why does the refrigerating compressor start and stop frequently?(The refrigerating compressor starts and stops frequently because of leaking liquid line, lack of refrigerant, dirty or iced evaporator and so on.)71. What’s the type of the freshwater generator?(The type of the freshwater generator is multi-stage flash evaporator.)72. What’s the type of the fuel oil separator?(The typ e of the fuel oil separator is centrifugal.)73. How do you clean the disc of an oil separator?(The disc of an oil separator is cleaned with disc cleaner.)74. What’s the type of the oily water separator?(The type of the oily water separator is gravity filtration and absorption.)75. What’s the function of the oily water separator?(The oily water separator is used to prevent oil-pollution to the sea.)76. What is the oil content limit when pumping out the bilge?(When pumping out the bilge, the oil content limit is 15 ppm.)77. What is the function of the incinerator?(The function of the incinerator is to burn out the waste oil and solid sludge.)78. How do you manage sewage?(The sewage is managed by dropping in sterilized medicine regularly, and keeping the blower in constant working.)79. What is the function of the steering gear?(The function of the steering gear is to contr ol the ship’s course.)80. What equipment is used to handle the anchors?(The windlass is used to handle the anchors.)81. Please name at least three items of deck machinery.(The deck machinery includes mooring winches, cranes, windlass, etc.)第三章驾机联系1. What may happen if the communication between the engine room and the bridge fails?If the communication between the engine room and the bridge fails, the ship will be in danger. 2. When do you need to communicate with the bridge?When the engine room has any trouble or standby engine.3. What methods and ways can be used to communicate with the bridge?we use telephone and telegraph to communicate with the bridge.4. Why do you think the records of the communication should be maintained?Because records can serve as evidence in the event of accidents.5. Do you think English is very important during the communication?Yes. I think English is very important during the communication6. What items of the main engine should you check before starting?We should check the reversing and control gear before starting7. What should you prepare for cooling water system when “Stand by engine”?Cooling water should be at working level and heated to proper temperature.8. What should you prepare for lube oil system when “Stand by engine”?To start lube oil pump, check working pressure and so on.9. How are you going to change fuel oil over to diesel oil?Shut the steam valve, decrease the fuel oil temperature, and open diesel oil valve.10.What are dut y engineer going to do when “Full astern” is ringing up?First slow down the main engine. when the engine is stopped, move the direction handle to the astern position. Admit compressed air to turn the engine astern and then supply fuel oil to speed up the engine till the full astern.11. How do you test main engine?Turn on the main engine by putting in start air and give a brief trial on power ahead and astern.12.What should you do when “Finished With Engine”?Ensure the telegraph is at “stop”, fue l control lever at zero, starting air lever at neutral position, turning gear engaged and so on.13. When should you check the engine telegraph?Before standby engine, we should check the engine telegraph14. How do you check the engine telegraph?Check it according to signals from bridge.15. How does the duty engineer correct the clock in engine room?To correct the clock in the engine room according to the bridge instruction.16. When must you test the steering gear?Before standby engine, after repairs and during PSC inspection. 17. What shall we have to do when the ship is sailing in the cold zone?We should preheat the oil when the ship is sailing in the cold zone第四章应急用语1. The engine does start on air, but combustion does not immediately begin. What is the possiblecause?Maybe there is something wrong with the fuel oil system.2. The engine may lose power or slow down when running. What is the possible cause?Maybe the safety protection system functions due to low lube oil pressure and so on.3. Please list some indications of a scavenge fire. (List at least three)The scavenge air box temperature and exhaust gas temperature may be high. The turbocharger may surge.4. If a filter is found leaking, what should you do?We should change it over to the standby one.5. What’s a common trouble with a fuel pump plunger?The common trouble with a fuel pump plunder is seizure or leakage.6. If a warning of a crankcase explosion is received, what steps should be taken right away?We should reduce the engine speed first and then stop the engine.7. What actions should you take if the exhaust temperature of the main engine is excessivelyhigh?We should reduce the engine speed first and then try to find out the causes.8. What kind of precaution will you take to avoid a scavenge fire?Engine timing and equipment maintenance should be carried out correctly. Scavenge trunking should be checked and cleaned regularly.9. What kind of precaution will you take to avoid a crankcase explosion?Bearing overheating should be avoided. The oil mist detector working condition and the stuffing box sealing condition should be checked regularly.10. In which cases must the main engine be stopped?The main engine should be stopped in the event of high pressure fuel oil pipe breaking, crankcase explosion and loss of lube oil pressure.11. Could you tell the main reason for the black smoke exhausted from the diesel engine?Maybe the fuel oil content is more than normal.12. Could you tell the main reason for scavenge fire?Maybe carbon and oil deposits are ignited by prolonged blow-by or combustion gas is blown-back through the scavenge air ports.13. Could you tell the main reason for crankcase explosion?Maybe oil mist and hot spot exist.14. What is the emergency source of electrical power on board?The emergency sources of electrical power on board are emergency generator and battery.15. Where is the emergency generator located?The emergency generator is located above the main deck or on the boat deck. / The emergency generator is located outside the engine room.16. Who is in charge of emergency generator?The Third Engineer is in charge of the emergency generator.17. What equipment should be first provided with electricity by emergency generator?The emergency equipment should be first provided with electricity by emergency generator. 18. In the event of blackout, what should you do at first as a duty engineer?As a duty engineer, I should report it to the bridge and Chief Engineer at once in the event of the blackout.19. In the event of blackout, what should you do as a chief engineer?As a Chief Engineer I should go to engine room immediately and then report it to the Captain in the event of the blackout.20. What are the three elements of fire?The three elements of fire are the fuel, heat, and oxygen.21. What can not be used for an electric fire?Water and foam extinguishers can not be used for an electric fire.22. What shall a person first do if he discovers a fire?He should first sound the alarm if he discovers a fire.23. What does a Muster List show?The muster list shows the muster station, duties, and alarm signals on it.24. What fixed fire fighting appliances do you know?The fixed fire fighting appliances include the fixed CO2 appliance and water spray extinguishing system.25. As soon as you hear the fire and emergency signal, what should you ensure?The fire position should be ensured first.26. When the fire alarm is sounded continuously, what should the engine room personnel do?The engine room personnel should start the emergency fire pump.27. Burning light metals should be treated as which class of fire?Burning light metals should be treated as Class D fire.28. Burning generator should be treated as which class of fire?Burning generator should be treated as Class C fire.29. Burning diesel oil should be treated as which class of fire?Burning diesel oil should be treated as Class B fire.30. Burning wood should be treated as which class of fire?Burning wood should be treated as Class A fire.31. How do you put it out when you come across the fire caused by electrical equipment?(I should use carbon dioxide or dry powder to put out the fire caused by electrical equipment.)32. What will the accumulation of dirt on electrical equipment result in?(It will result in insulation breakdown and current leaking.)33. How do you maintain carbon dioxide extinguishers?(I should check the weight and the date regularly.)34. How many types of extinguishers do you know? List some.(There are four types of extinguishers. They are dry powder extinguisher, foam extinguisher, carbon dioxide extinguisher, etc.)35. What should be done before carbon dioxide is released to the engine room?(All the engine room staff should leave the engine room as soon as possible first. Then all the doors and ventilations should be closed and quick-closing valve shut.)36. What is the general emergency alarm signal?(General emergency alarm signal is seven short blasts followed by one long blast.)37. What kind of sea chest should be used in the event of collision, a low-level sea chest or ahigh-level one?(I should use high level sea chest.)38. What should be done in the engine room when collision occurs?(I should stand by engine, check and block leakage, etc.)39. In the event of collision, what should you do?(I should stand by engine, sound fuel levels for all the tanks near accident position, cut off thesource of power, oil, water and air near accident position.)40. What materials can be used to block the leaks in the event of flooding?(We can use blanket and wood blocks.)41. What can be used to discharge the incoming sea water overboard in the event of flooding?(We can use emergency bilge suction or injection valve.)42. What should be firstly done in the event of flooding?(We should firstly inform the bridge and the chief engineer.)43. What immediate actions should be taken for engine room flooding?(We should report it to bridge and chief engineer at once, then stop leaking and pump the water overboard.)44. Who is responsible for operating lifeboat engine?(Fourth engineer is responsible for operating lifeboat engine.)45. What should you do with boilers before evacuating from the engine room?(We should stop the boiler and release pressure.)46. How do you evacuate from the engine room upon abandon ship order?(We should evacuate from the engine room by the escaping path.)47. What life-saving devices are equipped on board your ship?(They are life boats, life rafts, life jackets, life buoys and so on.)48. How do you test the engine for the lifeboat?(I should check oil level, start operating and stop it.)49. What can be used to prevent spilt oil from spreading out in the event of oil spill?(We can use oil booms.)50. What can be used to clean up spilt oil in the event of oil spill?(We can use saw dust, straw, oil felt and rags.)51. What are materials for oil pollution prevention?(We can use cotton wastes, straw, rags, oil dispersant, saw dust, etc.)52. In which case can you use oil dispersant?(In the case of oil spill, I can use oil dispersant after getting permission of harbor authorities.)53. What is the alarm signal for oil spill?(The alarm signal for oil spill is one short, two long and one short.)54. What equipment should you prepare for IOPP survey?(I should prepare oily water separator and incinerator for IOPP survey.)55. If you found an oil spill in the sea, how would you react?(I should report it to the nearest port authority; take action to control pollution and so on.)56. What is alarm signal for a man falling overboard?(The alarm signal for a man falling overboard is three long blasts.)57. What should you do firstly when a man is overboard?(I should firstly sound the alarm; throw the buoy and so on.)58. What life-saving appliances do you know?(They are life jacket, lifeboat, life raft and life buoys.)59. What is essential before check ing any kind of electrical equipment?(I should shut off the power supply first.)60. How do you treat the injured person who is not breathing?(I should ventilate the compartment and then give artificial respiration to save the person.)第五章对外业务联系1. In which cases must bunkering be stopped?(If some oil leakage or spill is found, the bunkering must be stopped.)2. What preparations are required on deck prior to the bunkering operation?(We must plug the scuppers, prepare the anti-pollution material and fire fighting equipment, and so on)3. Describe a procedure for the commencement of pumping oil.(We must check the bunkering valve and then confirm the contacting signals with the oil barge.At first fill in the oil slowly, and then speed up.)4. What should you do before bunkering?(The bunkering plan should be made before bunkering.)5. What measures against oil pollution should be taken before bunkering?(Before bunkering we must plug the scupper, and prepare some oil pollution prevention materials.)6. What do the terms TAN and TBN for lube oil stand for?(TAN stands for total acid number and TBN stands for total base number.)7. When handling oil, what is an important consideration in order to ensure safety?In order to ensure safety, we must keep the temperature under the flash point.8. What should be paid attention to when bunkering fuel oil?(Fire prevention, and pollution prevention.)9. What sort of documentation is involved with bunkering?(It involves bunkering plan, oil receipt, bunkering notice, and so on.)10. What should you do during bunkering?(During bunkering we must check for oil leakage, sound the tanks, take oil samples, etc.)11. How do you take samples during bunkering?(We take oil samples from the oil cock with bottles.)12. Describe how you would determine the volume of fuel loaded during the bunkering operation.(We s ound the oil tanks, measure the oil temperature and ship’s trim, and calculate the bunking quantity according to the tank table.)13. What should you do after bunkering?(We should confirm the bunking quantity, disconnect the oil pipe, and make records in the log book after bunkering.)14. Why are communications important during bunkering?(Because good communication can help us prevent oil spill.)15. What are usually contained in a repair list?。

轮机英语大证模拟试题(三)1.In purification, there is no fuel oil in the clean oil outlet. It could be caused by____.在纯化中，在干净的油出口没有燃油。

它可引起by____。

① too high temperature of the dirty fuel oil;②too low temperature of the dirty fuel oil;③clogged filter①肮脏的燃油温度过高;②温度过低的脏的燃油;③堵塞的过滤器A.①B.①②③C.②③D.②2. Which of the following would not be burnt in an incinerator (not ratified by IMO) on board?下列哪一项不会被烧毁的上板的焚化炉（不批准IMO）？A. oil ragsB. PVC garbage PVC垃圾C. waste oilD. waste clothes3. Which of the following statements is correct concerning the viscosity of lubricating oil?下面的语句是正确的，关于润滑油的粘度？粘度的流体的内部流动阻力的量度。

A. Viscosity will increase as temperature increases.B. Viscosity is a measure of a fluid's internal resistance to flow.C. Viscosity is not dependent on temperature.D. Viscosity will decrease as temperature decreases.4. Which of the following conditions would cause “panting” in a steaming auxiliary boiler?以下哪个条件会导致“气喘吁吁”在一个热气腾腾的锅炉辅机？A. Faulty flame scanner.B. Flame failure.C. Insufficient combustion air. 助燃空气不足。

轮机英语第44期考试题一、单项选择题1.The diesel engine is similar to the gasoline engine in that ______.A.both of them are ignited by compressed airB.both of them are the form of external combustion enginesC.both of them have spark plugsD.the power is developed by the piston in the cylinder2.The ratio of the brake horsepower to the indicated horsepower of a diesel engine is its ______.A. thermal efficiencyB. mechanical efficiencyC. brake thermal efficiencyD. volumetric efficiency3. The ignition quality of diesel fuel oil is indicated by the ______.A. specific gravityB. cetane numberC. viscosityD. calorific value4. How are the pressure and temperature affected in a diesel engine cylinder during compression?A. Pressure and temperature decreaseB. Pressure and temperature increaseC. Pressure decreases and temperature increasesD. Pressure increases and temperature decreases5. An aluminum piston has lower inertia and higher coefficient of ______compared to that of cast iron.A. viscosityB. twisting momentsC. inertiaD. thermal expansion6. Each cylinder is closed at the top by a ______ , made of a special heat-resistant steel.A. cylinder linerB. coupling flangeC. cylinder coverD. piston crown7. The amount of fuel delivered by a helical plunger type fuel injection pump is controlled by ______.A. rotation of the pump plungerB. rotation of the pump barrelC. varying the pump supply pressureD. varying the pump return pressure8. In a diesel engine lube oil system, which of the following parts should be lubricated first?A. Camshaft bearingsB. Main bearingsC. Piston crownsD. Cylinder walls9. Sacrificial zinc anodes are used on the saltwater side of diesel engine heat exchangers to ______.A. reduce clectrolytic action on heat exchanger metalsB. keep heat transfer surfaces shiny and cleanC. prevent rapid accumulation of marine growthD. provide a protective coating on heat exchanger surfaces10. In a turbocharger, inlet air velocity is increased in the ______.A. inlet nozzle ringB. stationary diffuser passagesC. compressor outlet voluteD. rotating impeller vanes11. Diesel engine cylinder air start valve timing is controlled by ______.A. engine operating speedB. an air manifoldC. a hydraulic distributorD. the air distributor12. If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will ______.A. have a larger than normal dead bandB. produce excessive speed response to a load changeC. respond slowly to any change in engine loadD. stabilize engine speed at the new governor setting13. A pyrometer is an instrument commonly used to measure ______A. cylinder pressureB. flame intensityC. exhaust gas temperatureD. crankshaft axial alignment14. Pump up the starting air reservoirs to their maximum pressure and ______ the air reservoirs and air system.A. openB. closeC. drainD. vent15. In reducing engine speed to an efficient propeller speed by the use of reduction gears, ______.A. speed and torque are both reducedB. speed is reduced and torque remains unchangedC. speed is reduced and torque is increasedD. speed is something unchanged while torque is increased16. Which of the following statements concerning fire-tube boilers is correct?A. Combustion gases flow through the tubesB. Flame impinge（撞击）on the tubesC. Combustion occurs in the tubesD. Water flows through the tubes17. The safety valves should be tested and adjusted when the boiler survey is ______A. completedB. carried outC. cleanedD. steamed18. When an auxiliary boiler is panting and emitting black smoke, you should_______.A. increase the fuel oil temperatureB. decrease the fuel oil temperatureC. decrease the fuel oil supply pressureD. increase the air supply19. If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler ,the cause may be ______.A. high steam pressure in the boilerB. decrease the fuel oil temperatureC. abnormally high boiler water temperatureD. steam demand exceeding feed pump capacity20. A vane pump belongs to ______ according to its working principle.A. reciprocating pumpB. positive displacement pumpC. centrifugal pumpD. centripetal pump21. The packing installed in the pump stuffing box is lubricated by _______.A. gravity and feed oil cupsB. grease cupsC. hand during installationD. leakage through the stuffing box22. If the capacity of a centrifugal pump decreases gradually over a long period of time, you should replace the ______.A. packing glandB. mechanical sealsC. lantern ringsD. wearing rings23. Which of the listed conditions can lead to cavitation in a centrifugal pump?A. Vapor pockets formed in the suction flow steamB. Rough casing volute surfacesC. Worn wearing ringsD. Heavy liquid in the flow stream24. In a compression refrigeration plant, the hot, high pressure refrigerant gas is cooled by the sea water and becomes liquid in the ______.A. compressorB. condenserC. throttle valveD. evaporator25. The temperature at which water vapor in the atmosphere begins to condense is called the ______.A. dew point temperatureB. condensation temperatureC. psychometric temperatureD. absolute humidity temperature26. In an air conditioning system, moisture is removed from the air by ______.A. filtersB. separatorsC. ducted trapsD. dehumidifiers27. Sludge may form in the crankcase of an air conditioning compressor as a result of ______.A. bubbling refrigerantB. lowered operating temperatureC. overheating and oxidationD. reducing the cloud or floc point28. Coalescence is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and ______in size.A. expandB. extractC. increaseD. decrease29. When started, a complete oily water separating unit is first filled ______. The oily water mixture is then pumped through the inlet pipe into the coarse separating compartment.A. with dirty waterB. with clean waterC. by oily waterD. by mixed water30. Which is the pollution prevention equipment?A. booster pumpB. evaporatorC. incineratorD. cooler31. The ______is used to burn oil sludge.A. clarifierB. oily water separatorC. incineratorD. distiller32. In sewage treatment, the term ‘maceration’ refers to the process of ______.A. breaking up solid matter into fine particlesB. precipitating non-decomposed waste in a collection tankC. chemically adjustment the sewage pH to 7.0D. eliminating bacterium coli from the sewage33. Which of the substances listed is satisfactorily removed from the fuel by a centrifugal oil purifier?A. Carbon particlesB. Lube oilC. GasolineD. Diesel fuel34. If the bowl of a disk type centrifugal purifier when operated as a separator is not primed, the ______.A. oil has tendency to emulsify in the bowlB. purifier will act as a clarifier at the discharge ringC. oil will be lost through the water discharge portsD. oil solids will be deposited only at the intermediate top disk35. The process of boiling seawater in order to separate it into freshwater vapor and brine is usually defined as ______.A. dehydrationB. condensationC. evaporationD. dissolution36. What type of valve is used to direct the flow of hydraulic fluid?A. relief valveB. direction control valveC. stop valveD. pressure control valve37. The delivery rate of a variable stroke axial piston hydraulic pump is controlled by varying the position of the ______.A. slide blockB. tilting boxC. pintleD. reaction ring38. The drive motor will have a brake arranged to fail-safe, i.e. it will ______the load if power fails or machine is stopped.A. liftB. putC. takeD. hold39. On tank vessels with an electrically-driven capstan, the motor should be meggered periodically to test ______.A. insulation resistanceB. eddy currentsC. capacitanceD. armature reactance40. Overheating of a hydraulic system may be a result of _______________.A. changing pump discharge pressure in response to normal load variationsB. a high oil levelC. incorrect fluid viscosityD. continued slow re- circulation of the oil41. Purging air from a hydraulic system is necessary when ______.A. adding small amounts of oil to the systemB. the system has been overheatedC. the system has been drained and then filled with new oilD. the system has been idle for a long period of time42. A direct current passing through a wire coiled around a soft iron core is the description of a simple ______.A. magnetic shieldB. electromagnetC. piezoelectric ( 压电的)D. electromagnetic domain43. The operation of ______ two alternators requires the voltages to be equal and also in phase.A. parallelingB. series-mountingC. runningD. controlling45. The power factor of an AC generator operating singularly is determined by the ______.A. connected loadB. prime mover speedC. field excitationD. generator’s rated voltage46. After a ship enters service it is ______for the main bus-bar to be made dead.A. usuallyB. commonlyC. exceptionalD. unavoidably47. A transformer in an electric circuit serves to ______.A. generate its own electrical powerB. transform electrical energy into mechanical energyC. increase or decrease circuit voltage as requiredD. convert AC to DC48. The separate supplies are connected in either star or delta formation. The star formation is most commonly used and requires ______ slip-rings on the alternator.A. twoB. threeC. fourD. five49. Most conducting materials such as copper, aluminum, iron, nickel, and tungsten(钨)______.A. increase in resistance with increased temperatureB. increase in resistance with decreased temperatureC. decrease in resistance with increased temperatureD. increase in conductance with increased temperature50. Which of the following statements represents the main difference between a relay and a contactor?A. Contactors control current and relays control voltageB. A relay is series connected and a contactor is parallel connectedC. Contactors can handle heavier loads than relaysD. Contactors are made from silver and relays are made from copper51. The energy consumed by an AC motor, as strictly reactive power, is ______.A. used to do mechanical workB. used to establish the magnetic field of the motorC. lost as heat generated by the windingsD. lost in doing work to turn the motor itself52. The energy consumed by an AC motor, as strictly reactive power, is ______.A. visual inspection for dirt accumulationB. used to establish the magnetic field of the motorC. low as heat generated by the windingsD. lost in doing work to turn the motor itself53. Before starting the engine, the air bottle should be ______.A. pumped upB. loadedC. dischargedD. closed54. At the beginning of the watch the current operational parameters and the condition of all machinery should be verified and also the log readings should correspond with those ______.A. noted by the bridge officerB. told by last duty engineerC. observedD. in the instruction manual55. “Movement of engine no longer required.” means ______.A. Stop EngineB. No Engine RevolutionC. Stand-by EngineD. Finished With Engine56. Which of the listed conditions can be considered as the single greatest cause of accidents?A. SpeedB. Excessive knowledge or skillC. Human errorD. Excitement57. A class ‘C’ fire would occur in ______.A. beddingB. pipe insulationC. paintD. a generator58. If a fire occurs in the boiler room as a result of a leaking fuel line, you should FIRST ______.A. notify the engineer on watchB. isolate and secure the pipingC. throw and on the fireD. extinguish the fire using a combination nozzle with applicator59. At the earliest indication of fire aboard your vessel, you must FIRST ______.A. locate the fireB. determine which type of fire is burningC. sound the alarmD. fight the fire60. If there has been a fire in a closed unventilated compartment it may be unsafe to enter because of ______.A. unburned carbon particlesB. excess nitrogenC. lack of oxygenD. excess hydrogen61. If you observe any situation which presents a safety or pollution hazard during fuel transfer operations, which of the following actions should be taken FIRST?A. Close the valves at the transfer manifoldB. Notify the person in charge of the shore facilityC. Stop the transfer operationD. Sound the fire alarm62. Before replacing a piston you should check the rings to see that all clearances and gaps are within the permissible ______.A. deflectionB. discrepancyC. errorD. tolerance63. ______ is an opening for supplying seawater to condensers, pumps, ect. Located in the hull below the waterline and having means for the attachment of the associated piping.A. Sea chestB. SupperC. ScuttleD. Sea port64. The additional mark ______in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.A.BRCB. MCCC. AUT-0D. AUT-165. The International Oil Pollution Prevention Certificate is valid for a period of ______.A. one year from the date of issueB. five years from the date of issueC. three years from the date of issueD. four years from the date of issue66. Which one is the ‘clear grounds’ for a more detailed inspection?A. paint peeling off the uptakeB. no operation procedures for the oil separatorC. one of ship’s certificates required is invalidD. damaged sanitary pump67. The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the ______.A. Navigation Log BookB. EngineC. Oil Record BookD. Muster List68. The ______Convention is the first to establish basic requirements on training, certification and watch-keeping for seafarers on an international level.A. STCW78B. STCW95C. SOLAS74D. SOLAS8869. When the machinery spaces are in the periodic unmanned condition, ______ shall be immediately available and on call to attend the machinery space.A. the chief engineerB. the designated engineer from shipyardC. the designated duty officer in charge of the engineering watchD. the designated surveyor from classification society70. The officer in charge of the engineering watch shall ensure that all machinery involved with the maneuvering of the ship can immediately be place in the ______ of operation when notified that the ship is in congested waters.A. manual modeB. automatic modeC. remote modeD. follow-up mode71. Small oil spills on deck can be prevented from contaminating any waters by ______.A. plugging all scuppers and drainsB. placing floating booms around the shipC. regularly emptying all drip pansD. thoroughly draining all bunkering hoses72. When off loading garbage to another ship, your records must identify that ship by name and ______.A. home portB. operator’s name of recordC. official numberD. master’s name73. The main objective of the SOLAS Convention is to specify ______for the construction, equipment and operation of ships, compatible their safety.A. at most referencesB. at least referencesC. maximum standardsD. minimum standards74. The objectives of the ISM Code are to ensure ______ ①safety at sea ②prevention of human injury or loss of life ③ avoidance of damage to the marine environment and to propertyA. ①B. ①②C. ②③D. ①②③二、关联题（关联题题干下有4个小题，每小题4个选项）The main starting valve (automatic valve) is operated by a pneumatic actuator, and similar actuator controls are fitted for slow turning and to the timing valves. The main starting valve can be locked shut and this must be done before the engine turning gear is engaged. When this valve is open, air passes through a non-return valve and flame arrester to the main manifold supplying pressure to the cylinder valves, one of which is fitted to each cylinder of the engine.The cylinder air start valves are normally held closed by a compression spring together with cylinder pressure acting over the valve lid. Air from the manifold enters these valves where it forms a pressure balance between the underside of the valve lid and a balance piston of equal area on the valve spindle.Consequently this does not cause the valve to open.Cylinder valves are opened when operating air, transmitted from the distributor, applies pressure to the larger operating piston on the valve spindle. As the valve is forced open, starting air from the manifold enters the cylinder, applying pressure on the piston and causing the engine to rotate in the corresponding direction. To close the cylinder valves the connection from the distributor is opened to atmosphere, allowing the spring to close the valve and return the operating piston.75. The timing valves ( in the first paragraph ) refer to ______.A. the valves for slow runningB. fuel valvesC. the distributorD. not mentioned76. After the main starting valve opens, air will not supply to ______.A. the flame arresterB. each cylinder valveC. a non-return valveD. a pneumatic actuator77. The balance piston used on a cylinder air start valve is to ______.A. increase acting areaB. keep pressure balance and help the valve close before operating air appliedC. increase the force and help the valve open after the operating air appliedD. cause the valve to open78. After the engine being started, the air in the distributor will ______.A. be vented to open airB. be leaded to the corresponding cylinderC. be trapped until engine stopsD. return to air reservoir光阴荏苒，而流年从来也不曾缺少错乱和犹疑。

中华人民共和国海事局2006年第3期海船船员适任证书全国统考试题(总第41期)科目：轮机英语试卷代号：805适用对象：无限、近洋航区3000KW及以上船舶二/三管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。

第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题, 每题10分。

一、单项选择题1. A diesel engine is similar to a gasoline engine except that the former has no ______.A. cross-headB. spark plugC. connecting rodD. cylinder2. A diesel engine which is rated for normal operation at a crankshaft speed of 800 RPM, iscommonly classed as a ______.A. slow-speed dieselB. medium-speed dieselC. high-speed dieselD. constant-speed diesel3.Which of the diesel engine components listed increases air density and helps to improve engineoperating efficiency?A. ImpellerB. CompressorC. After-coolerD. Exhaust diffuser4.For a given size engine, the two-stroke/cycle diesel engine will deliver more power than afour-stroke/cycle diesel engine because ______.A. it has a longer power strokeB. more air gets into the cylinder each strokeC. it develops twice as many power strokes at the same speedD. higher combustion pressure is developed5.The intake valves in a diesel engine are reseated by ______.A. cam followersB. push rodsC. combustion gasesD. valve springs6.According to the way the energy of the exhaust gases is utilized, pressure-charging can be dividedinto two main systems, namely, the constant-pressure system and ______.A. the pulse-phase systemB. the pulse Doppler systemC. the pulse systemD. the pulse interval system7.An over-speed safety device is usually fitted to a generator engine for______in the event ofover-speed.A. cutting power off the engineB. increasing the fuel pump settingC. braking the crankshaftD. stabilizing the ship speed8.What preventative maintenance should be done frequently to diesel engine starting air receivers?A. Drain the accumulated moisture.B. Test the relief valves.C. Watch the temperature to prevent fluctuations in pressure.D. Clean the interior to remove oil and foreign matter.9.Immediately after any diesel engine is started, the engineer should check the ______.A. crankcase pressureB. lube oil pressureC. seawater pressureD. exhausttemperature 10. A controllable pitch propeller on a diesel driven vessel eliminates the need for ______.A. friction clutchesB. disconnect clutchesC. reversing gearsD. reduction gears11.In motor ship, ______is often used to recover some of the heat carried in the exhaust gases fromthe main engine.A. an diesel oil heaterB. a waste heat boilerC. a fresh water generatorD. a donkeyboiler12.An exhaust gas bypass is installed on a waste heat boiler in order to ______.A. bypass exhaust gas at high loads to prevent excessive back pressureB. bypass a portion of the exhaust gas at peak loads for better efficiencyC. recycle exhaust gas to the turbochargerD. minimize moisture condensation in the boiler gas passages at low loads13.Prior to lighting off a cold automatically fired auxiliary boiler, you should ______.A. check and regulate the water levelB. close the air cock once fires are litC. blow down the gage glassD. assure protective steam flow14.Flame failure in an automatically fired auxiliary boiler can mostly result from a/an ______.A. incorrect electrode settingB. incorrect nozzle positionC. clogged fuel nozzleD. broken high tension lead15.Waterside scale in a fire-tube boiler may cause ______.A. increased heat transferB. fireside erosionC. high steam demandD. overheatedtubes16.Which of the following will be the advantage of a centrifugal pump as compared with areciprocating pump? I. Its discharge is continuous; II. It has no internal valves; III. Uponaccidental closing of discharge valve, excessive pressure will not build upA. I, IIB. II, IIIC. I, II, IIID. II only17.Why are removable sleeves installed on centrifugal pump shafts?A. They make it easier to replace the pump shaft packing.B. They can be economically replaced as they wear out.C. They can be removed when it is necessary to lighten the weight of the pump.D. They increase the strength of the shaft.18.If one of the bilge system manifold valves does not properly seat, the ______.A. bilge well connected to that valve, plus the second bilge well being pumped will be completelyemptiedB. bilge system will lose vacuum and prevent the other bilges from being pumped outC. bilge well aft connected to that valve will siphon(虹吸) its contents to the forward bilge wellsD. discharge pressure will be too high.19.Which of the listed statements is correct concerning the starting of centrifugal pumps?A. They should always be started with the discharge valve closed.B. They should always be started with the discharge valve opened.C. A priming pump is always required to flood the impeller suction.D. They should always be started with the sealing line valves closed.20.The simplest method to use for determining if a centrifugal pump is operating as designed, is to______.A. closely observe the pump discharge temperatureB. close off the discharge valve, and watch for a rise in pressureC. momentarily close off the suction valve, and watch for a rise in pressureD. use a clamp on ammeter and compare the readings to past records21.Which of the following modes of heat transfer does NOT require any physical contact between awarmer and a cooler substance?A. RadiationB. ConductionC. Natural convectionD. Contact directly22. A re-heater in an air conditioning system functions to ______.A. control inlet air temperatureB. control inlet air volumeC. maintain relative humidity at 15%D. restore conditioned air temperature to a comfortable level23.In a chilled water air conditioning unit using a reciprocating compressor, the refrigerating effectof the primary refrigerant can be increased by ______.A. increasing refrigerant pressure in the coilB. increasing chilled water flow through the coolerC. sub-cooling the refrigerant in the condenserD. superheating the refrigerant in the compressor24.Sludge may form in the lubricating oil crankcase of a reciprocating air conditioning compressoras a result of ______.A. wax precipitation in the lube oilB. contamination by dust, scale, or moistureC. refrigerant bubbles in the lube oilD. refrigerant reducing the lube oil viscosity25.Placing a filter on the ______of an oily water separator will “polish” the discharge butoverloading must be avoided.A. suction sideB. discharge sideC. by-pass pipeD. sampling pipe26.When started, a complete oily water separating unit is first filled ______.The oily water mixtureis then pumped through the inlet pipe into the coarse separating compartment.A. with dirty waterB. with clean waterC. by oily waterD. by mixed water27.Which is the pollution prevention equipment?A. booster pumpB. evaporatorC. incineratorD. cooler28.The ______is used to burn oil sludge.A. clarifierB. oil/water separatorC. incineratorD. distiller29.Most marine biological sewage treatment plants consist of all the following statements except______.A. aeration tanksB. settling tanksC. disinfection agent （消毒剂）D. anaerobic bacteria (厌氧菌)30.For a purifier changing to a gravity disc with smaller hole diameter will move the interfacetowards the ______.A. bowl peripheryB. bowl centerC. upper surfaceD. lower surface31.The ______of the gravity disc is too big. It cause oil to flow through the water outlet. Wechanged the disc and no oil is found in the water outlet.A. gravityB. diameterC. circumferenceD. cylinder32.The advantages of flash type evaporators, as compared to submerged tube type evaporators,include ______.A. less internal corrosion because of lower brine densityB. higher temperature evaporation for lower salinity of the distillate producedC. less scale formation in a flash evaporatorD. less feed-water required for a flash evaporator33.Distilled water from an evaporator may be discharged into a drinking water tank ______.A. through a detachable hose connectionB. after passing through an activated charcoal filterC. after chemical analysis shows it is fit for consumptionD. through a solenoid operated three-way valve34.What type of valve is used to direct the flow of hydraulic fluid?A. relief valveB. direction control valveC. stop valveD. pressure control valve35.In a radial piston pump, reversal and control of fluid flow are accomplished by moving the______.A. central valveB. radial plungerC. floating ringD. cylinderbody36.In a general cargo crane, ______is fitted to lift the cargo load.A. the slewing motorB. the luffing motorC. the hoisting motorD. the fan moter37.______are used to handle anchors and chains.A. Cargo winchesB. Mooring winchesC. WindlassesD. Cargo hatches38.The clutch band of a constant tensioning mooring winch must be set up tight enough to drive thewinch drum and should slip only when ______.A. excessive loads are placed on the winchB. minimum pull is being exerted by the winchC. automatic operation of the winch is desiredD. wire is being retrieved at the maximum rate39.Dual (双的)electro-hydraulic steering units usually operate ______.A. with both pumps on line at the same time B．with one pump on standbyC．with the follow-up gear disconnected D．only when the rudder is moved amidships40.One factor that determines the frequency of an alternator is the ______.A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage41.An electrical device which employs a stationary armature and a rotating electromagnetic field isused aboard ship as a ______.A. magnetic amplifierB. ship's service alternatorC. three-wire DC generatorD. saturable core reactor42.Current changing in direction and rising and falling in value is ___ .A. D.C.B. A.C. C. generatorD.fresh water generator43.Equal power factors on paralleled AC generators are maintained by an automatic ______.A. voltage regulatorB. reverse power relayC. reverse current relayD. governor control switch44.______shall be continuously powered and shall have an automatic changeover to a stand bypower supply in case of loss of normal power supply .A. Cooling systemB. Alarm systemC. The air conditioning installationD. The mooring equipment45.Switchboards may be of the dead-front type in which all live parts are installed behind ______andonly the operation handles and instruments are on the frontA. the capstanB. the collectorC. the panelsD. the surface46.The emergency generator or emergency battery is connected to ______on most ships.A. distribution boardsB. section boardsC. emergency switch boardsD. main switch boards47.The primary function of an electric motor is to ______.A. develop torqueB. generate high voltagesC. produce a magnetic fieldD. generate high electrical resistance48.Electrical leads and insulation on a motor should be painted with ______.A. heat-resisting acrylicB. heat-resisting aluminumC. insulating varnishD. insulating white lead49. A circuit breaker and a fuse have a basic similarity in that they both ______.A. can be reset to energize the circuitB. should open the circuit when overloadedC. will burn out when an over current flow developsD. should short the circuit when overloaded50.Electric circuits are protected against short circuits by means of a/an _______.A. diode(二极管)B. amplifierC. circuit breakerD. capacitor51.The electrolyte in a lead-acid storage battery consists of distilled water and ______.A. hydrogen chlorideB. calcium chlorideC. sulfuric acidD. muriatic acid52.When under maneuvering conditions with the machinery being manually operated the control unitor console should be ___.A. automatically controlledB. off powerC. continuously mannedD. continuously unmanned53.______is a precaution which contributes to avoiding trouble under normal operating conditions.A. Constant inspectionB. Keeping constant loadC. Remaining constant temperatureD. Varying speed54.After “F.W.E.” is given, the air system is shut down, the ______gear put in, all drains andindicator cocks opened, and the cooling water kept running.A. steeringB. timingC. turningD. running55. A tank which has been sealed for a long period of time can be dangerous because ______.A. steel surfaces consume oxygen by rustingB. sealed tanks usually form a vacuumC. moisture condenses in the tank, displacing the oxygenD. most tank coatings give off poisonous vapors in the presence of moisture56. A class 'C' fire is burning ______.A. diesel oilB. magnesiumC. dunnageD. electrical insulation57.To prevent the spread of fire by conduction, you should ______.A. close all openings to the areaB. remove combustibles from direct exposureC. cool the bulkheads around the fireD. shut off all electric power58.The lengthening of a crack formed in the shell plating of a ship may be prevented by ______.A. welding brackets across both ends of the crackB. chipping out and slot welding the entire crackC. drilling a hole at each end of the crackD. cutting a square notch at each end of the crack59.After a fire has been extinguished in a closed space, personnel may safely enter the space when______.A. smoke density has been decreased sufficiently to see the bulkhead opposite the compartment'sentranceB. a lifeline and explosion proof flash light are usedC. all smoke and toxic fumes are removed and an adequate oxygen supply is presentD. overhaul has been completed to remove any possible source of re-ignition60.While loading bunkers, you notice oil on the water near the vessel. What should you do first?A. Stop loadingB. Notify the harbor administration.C. Determine if the vessel is the source of the pollution.D. Start the main engine and put them in gear to disperse the spill.61.To anneal (退火)a copper gasket, you should heat the gasket _______.A. and quench it in oilB. cherry red and quench in waterC. and let it cool slowly in the airD. and carbonize it62.When a vessel is in dry-dock, the vessel's engineers should ______.A. examine the condition of the propellerB. chip and paint all hull protection zincsC. install new docking plugs in all cofferdamsD. inspect the hull for hogging or sagging63.The additional mark ______in the Classification Certificate for Machinery represents thatpersonnel are watching at engine assembly control station and monitoring all machinery and electronic devices.A. BRCB. MCCC. AUT-0D. AUT-164.Which of the following operations must be entered on the Oil Record Book Part I?I. Routine discharge at sea of bilge water containing oil from the machinery spacesII. Bunkering of fuel oilA. I onlyB. II onlyC. both I and IID. neither I nor II65.Your ship‟s certificat es show that you did not do renewing work for certificate. All certificateshave expired a few days before. Thus, your ship is ______.It follows therefore that she will______.A. seaworthy / be fined in our portB. un-seaworthy/ be disassembled in our portC. seaworthy / be assembled in our portD. un-seaworthy / be detained in our port66.“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a______.A. substandard shipB. standard shipC. over-standard shipD. reference ship67.When deciding the composition of the engineering watch, which may include _____appropriately,many factors shall be taken into account.A. satisfied engineersB. qualified ratingsC. satisfied chief engineerD. qualified chief engineer68.The officer in charge of the engineering watch shall notify the chief engineer withoutdelay______.A. in any emergency or if in any doubt as to what decision or measures to takeB. in the event of any impending action in machinery spaces that may cause reduction in ship‟sspeedC. when isolating and bypassing machinery to be worked onD. co-operating with any engineer in charge of maintenance work69.At an unsheltered anchorage the chief engineer shall consult with ______whether or not tomaintain an underway watch.A. the engineer officer in charge of watchB. the deck officer in charge of watchC. the masterD. the chief mate70.The term "moderate speed" was previously interpreted as meaning a speed which would enable avessel ______within half the range of visibility.A. stoppingB. being stoppedC. to stopD. to be stopped71.One of the methods NOT usually allowed in cleaning up oil spills in the United States is ______.A. skimmersB. strawC. dispersantsD. sawdust72.The SOLAS Convention in its successive forms is generally regarded as the most important of allinternational treaties concerning the ______ of merchant ships.A. pollutionB. economizationC. efficiencyD. safety73.The Company should ensure that the master is fully ______with the Company's SMS.A. familiarB. understandC. conversationD. confused74.______means the level for which minimum appropriate protective security measures shall bemaintained at all times, threats and exchanging such information with appropriate Contracting Governments.A. Security level 1B. Security level 2C. Security level 3D. Security level 4二. 关联题（关联题题干下有4个小题，每小题4个选项）With many small package boilers, the automatic control sequence usually ensures that the boiler fire is initially ignited from a diesel oil supply, and changed over to the usual source when ignition is completed. With good management, to facilitate subsequent starting from cold, the fuel system of large boilers will have been flushed through with diesel oil when the boiler was on light duty immediately prior to being secured. When burning such diesel fuel it is essential for safety that only the correct (small) burner tip should be used. It should be kept in mind that if fire does not light, immediately shut off fuel and vent furnace.Complete ignition of fuel in the furnace is essential. The burner flame, the smoke indicator and the funnel should be frequently observed. With satisfactory combustion, the flame should appear in candescent （白热的）with an orange shade at the flame tip, and a faint brownish haze should show at the funnel. If on first ignition the flame is uncertain, badly shaped and separates from the primary swirler, momentary opening or closing of air register may correct. 75. Small package boilers will use _______ while being lit up.A. the usual source of oilB. fuel oilC. diesel oilD. mixture of fuel oil and diesel oil76. After large boilers being secured, the fuel in the feeding line will be____.A. the usual source of oilB. fuel oilC. diesel oilD. mixture of fuel oil and diesel oil77. If large boilers were not lit up, _____.A. feed water to normal levelB. stop fuel supply immediately and purge the furnaceC. light the boiler againD. reset the burner78. An indication for a good combustion is ______.A. white smokeB. brown haze in the funnelC. orange flame tipD. swirl oil spray三、中译英（共2题，请将答案写在答题纸上）79. 船舶加油期间，如发现船舶附近水面有油或发生溢油事故，都应立即停止加油作业。

1 . Pump up the starting air reservoir to their maximum pressure and ____ the airreservoirs and air system（历年真题）openclosedrainvent2 . The blower type crankcase ventilation system ____（历年真题）remove combustible gases from the crankcaseprevents the formation of combustible gases in the crankcasecools lubricating oilimproves cold weather starting3 . According to Annex IV of comminuted and disinfected sewage using an approved system can be discharged when the ship is more than away from the nearest land.3 n mile5 n mile12 n mile25 n mile4 . According to Annex I of MARPOL 73/78, the instantaneous discharging rate ofthe oily waste from cargo tanks of oil tankers must be lower than___ .30 liters per nautical mile15 liters per nautical mile30 ppm15ppm5 . According to Annex I of MARPOL 73/78, the discharging oil content of themachinery space bilges must be lower than___ .30 liters per nautical mile15 liters per nautical mile30 ppm15ppm6 . According to Annex I of MARPOL 73/78, oily waste from cargo tanks of oil tankers can be discharged when the ship is more than_________ away from thenearest land.50 nautical miles30 nautical miles15 nautical miles12 nautical miles正确答案为：A7 . In _____, hot diesel engine jacket water passes over the stack and heats the seawater passing through the tubes.a flash generatora flash evaporatora vacuum boiling evaporatora boiler8 . Current changing in direction and rising and falling in value is _____.A.CD.Cgeneratorfresh water generator9 . The MARPOL Convention is the main international convention .about marine pollution preventioncovering marine protection of lifeabout marineabout ship and port security10 . On a diesel engine equipped with a hydraulic speed control governor, hunting inmany cases can be corrected by adjusting the _______.accumulator spring compressorbalance pistoncompensating needle valveproportional piston11 . Maintaining the lowest possible scavenging air at all times is not recommendeddue to the possibility of the _____（历年真题）air charge density becoming too highpiston crown surface becoming too coldformation of excessive quantities of condensatecompression pressure being greatly reduced12 . ____may be defined as the process of supplying outside air to and exhausting airfrom an enclosed space（历年真题）Air-conditioningheatingventilationcooling and dehumidification13 . The interior of some diesel engine saltwater heat exchangers are protected fromcorrosion by the use of the ____（历年真题）aluminum plateslead cathodescopper baffle platesacrificial zincs14 . The current flowing first in one direction and then in another is called_____current.an alternatinga rusha directan exciting15 . ____ is used to produce electric power.An alternatorFresh water generatorA compressorA clarifier16 . Under MARPOL Code the ship to which it applies has to carry ____.an International Ship Security Certificatean International Oil Pollution Certificatea Safety Management Certificatean International Ballast Water Management Certificate17 . Which of the listed types steam traps operates on the principle that hot waterflashes to steam when its vapor pressure is rapidly reduced?Ball floatThermostaticBimetallicImpulse18 . Diesel fuel vapors _____.can not be ignited by a spark unless the vapor is in a confined spaceare nontoxic in all concentrationscan not be ignited by a spark unless they are at their auto-ignition temperatureare heavier than air19 . The purpose of the compensating adjustment used in a diesel engine hydraulicgovernor is to ______compensate for low oil levelincrease governor promptnessprevent governor huntinglimit engine load20 . When a flash-type evaporator is to be secured for an extended period of time, theentire unit should be drained, cleaned, and _____.completely filled with saltwaterfilled with de-scaling compoundtightly closed to exclude airvented to the atmosphere正确答案为：D21 . As engine RPM is increased from idle speed to full load speed, which of theconditions listed will decrease?Compression ratioFuel/Air ratioCompression pressureLube oil pressure正确答案为：B22 . overcurrent relay _____ the motor contactor when the motor exceeds its ratedcurrent.connectstripsfoulsdestructs23 . The designed capacity is 25 tons a day, but the fresh water generator canonly____ 22 tons at present.consumedistillrunoperate24 . A diesel engine is equipped with an isochronous hydraulic governorA decrease inload will cause the engine speed to _______.decrease onlyincrease onlydecrease slightly then returned to original speedincrease slightly then returned to original speed25 . Cold weather starting of a diesel engine may be made easier by .decreasing the compression ratiousing a special fuel having a high ignition temperatureincreasing the starting air supplyheating the jacket water26 . he process of boiling seawater in order to separate it into freshwater vapor andbrine is usually defined as _____.dehydrationcondensationevaporationdissolution27 . ____allow the engines to be placed wherever is most suitable , as they no longerhave to be aligned with reduction gearing and shafting as is the case withconventional installations（历年真题）diesel engine propulsiondiesel electric propulsionsteam engine propulsiongas turbine propulsion28 . n the production of freshwater from seawater through a process of heating andcooling, the cooling phase of production is usually called _____.evaporationdistillationdehydrationcondensation29 . The clutch band of a constant tensioning mooring winch must be set up tight enough to drive the winch drum and should slip only when ____（历年真题）excessive loads are place placed on the winchminimum pull is being exerted by the winchautomatic operation of the winch is desiredwire is being retrieved at the maximum rate30 . As soon as a diesel engine has started, which of the listed engine operatingparameters should be checked FIRST?Exhaust temperaturesRaw water pressureLube oil pressureAir box pressure31 . Which of the following is operated from the main engines room console on anautomated vessel?fire pump and lube oil pumplube oil pump and distilling plantdistilling plant and shaft and alley doorshaft alley door and fixed CO2 release32 . If a small fire initially breaks out in the engine room bilges, in which of thefollowing sequences should the fire extinguishing agents or systems be used?Fixed CO2, semi-portable CO2, then hand portable CO2Semi-portable CO2, fixed CO2, then hand portable CO2 Hand portable, semi-portable CO2, then as a last resort the fixed CO2 system Hand portable, fixed CO2, then as a last resort the semi-portable CO233 . During maneuvering operations for a direct reversing large, low-speed, main propulsion diesel engine, which of the following actions is used to stop the shaft from turning prior to reversing the engine rotation?Flywheel inertiaAdmission of starting airThe way of the vesselsecuring of fuel to the cylinders正确答案为：B34 . All of the following are part of the fire triangle EXCEPT _____.fueloxygenheatelectricity35 . A diesel engine fails to start due to excessive water in the fuelBefore the enginecan be started, the water should be removed from the__________.fuel lineslube oil filtercrank case pumprocker arm reservoir36 . The frequency of the alternating current generated by a synchronous generator isgoverned by the speed and the ____（历年真题）full excitationpower factorloadnumber of poles37 . hich of the following statements is true concerning any evaporator? .High conductivity of the distillate indicates distillate salinity is excessive Increasing the absolute pressure of the shell will increase the distillers capacity Mesh separators are used in evaporators to filter the distillateReducing the brine density will reduce the heat lost overboard38 . Which of the following operations need be entered on the Oil Record Book partI ? I .cleaning of fuel oil tanks .II .internal transfer of fuel oil（历年真题）I onlyII only\both I and IIneither I nor II正确答案为：A39 . Starting a large low-speed propulsion diesel engine on diesel fuel during coldweather conditions, will be made easier by _______increasing the quantity of starting airincreasing the lube oil pressureheating the engine fuel supplyheating the engine coolant40 . The vapors given off by heated fuel oil are flammable, explosive, and _____.lighter than airheavier than airodorlessnontoxic41 . The overspeeding of the diesel engine driving an electric generator could cause_____.low voltage trip to tripreverse power trip to tripdamage to windingsexcessive exhaust temperatures正确答案为：C42 . More than one stage of evaporation can take place by admitting the sea water intochambers with progressively _____ pressure in the flash evaporator.lowerhigherthe lowerthe higher43 . When approaching a fire from win ward, you should shield firefighters from thefire by using_____.low-velocity foghigh-velocity foga straight stream of waterfoam spray正确答案为：A44 . Engine parameters shall be corresponded to NOx Technical FilesThis is requiredby ____.MARPOL Annex IIIMARPOL Annex VIMARPOL Annex VMARPOL Annex VI45 . The vapors given off by heated fuel oil are heavier than air and are _____.odorlessexplosivenontoxicvisible46 . The valid period of the International Oil Pollution Prevention Certificate on boardis’nt more than _____.OneTwoFourFive正确答案为：D47 . To achieve the best possible separator, the interface must be located between the____of the top disc and the disc stack（历年真题）outskirtout brimouter edgeinner part48 . Fire prevention during welding or burning aboard any vessel should include_____.posting a fire watch in the immediate areaproviding an extinguisher which is ready for immediate userequiring the fire watch to remain on post for 30 minutes after the completion ofwelding or burningAll of the above49 . The _____ is a measure of the phase difference between voltage and current andis expected as the cosine of phase angle.powerefficiencyeffective powerpower factor50 . Because of the reduced _____ in the distillation system, some of the sea waterboils as it flows through the tubes of the evaporator.pressuretemperaturedensityvolume51 . If a hydraulic governor has been refilled with oil, the engine should be operated until it reaches normal temperaturethen the air should be purged, and the_________.rack position should be adjustedcompensating needle valve should be opened fully compensatingneedle valve should be adjusted to stabilize operationspeed limiting device should be adjusted正确答案为：C52 . To prevent the spread of fire by convection you should _____.remove combustibiles from direct exposurecool the bulkhead around the fireclose all openings to the areashut off electrical power正确答案为：C53 . The best method of extinguishing a class A fire is to _____.remove oxygen from the areasmother fire with foamsmother fire with CO2cool fuel below ignition temperature54 . In order to limit the introduction of alien species by ship, ____ was adopted on 13Feb, 2004 at the IMO.Revised MARPOL Annex IRevised MARPOL Annex IIInternational convention for the control and management of ships` ballast waterand sedimentsISPS Code55 . In fighting a fire in a fuel tank , the FIRST action you should attempt is to ____（历年真题）secure all sources of fresh air to the tankbegin transferring the fuel to other tankstop off the tank to force out all vaporsstation on someone at the fixed CO2 release control56 . A normally operating diesel engine is shutdown by_____.Shutting off the air supplyOver-speeding the engineSecuring the fuel supplySecuring the ignition system57 . The ___ , cage rotor induction motor is the first choice of marine motor in mostmodern ships because of its electrical and mechanical simplicity.single phasetwo phasethree phasefour phase58 . The delivery rate of an axial-piston hydraulic pump is controlled by varying theposition of the ____（历年真题）sliding blockpintlereaction ringtitling box or swash plate59 . The reversing cams of some four-stroke/cycle diesel engines are brought intoposition by ________.sliding the camshaft along its axisrotating the cam 180rotating the cam followers 180moving the idler sprockets in the drive chain60 . The oil-level is indicated with a level gauge and is measured through_____________.Sounding pipecrankcaseAir ventThe manhole of the sump tank61 . Which of the following adjustments is always required whenever the dieselengine governor oil has been drained and renewed?speed droopcompensationidle speed settingload limit control62 . On a diesel engine equipped with an isochronous governor, if the “speed droop”control is reduced to the “zero” setting, the engine _____.speed will drop drastically with any increase in loadwill stop due to zero fuel supplywill stall upon application of loadspeed will remain fairly constant despite load changes63 . The arrangement and shape of the cams on a diesel engine camshaft directlycontrol which of the listed groups of operating conditions?speed, torque, and horsepower productionfiring order, valve timing, andvalve liftfuel consumption, efficiency, and cylinder pressurescavenge pressure, compression ratio, and exhaust pressure64 . You are about to enter a compartment to investigate a suspected smoldering fireIfyoure not wearing a self-contained breathing apparatus, you should test the compartments atmosphere to determine if there is/are _____.sufficient oxygen to sustain human lifean explosive mixture in the compartmenta toxic atmosphere in the compartmentAll of the above65 . Prior to starting, the purpose of turning over a main propulsion diesel engine withthe cylinder test cocks open, is to ______test the starting systemremove condensation from the cylinderscheck the compressioncheck for proper lube oil pressure66 . In a modern three-phase A.C synchronous brushes generator, the excitationwinding is on the rotor. That means____.the generator need not excitationthe winding on the rotor is for inputting excitation currentthere are three phase windings on the rotorthe generator has brushes正确答案为：C67 . Ships do not permitted to the TBT paint after 2008It is required by ____.the International Convention for the Safety of the Life at Seathe International Convention for the Prevention from ships the International Convention on control of harmful anti-fouling system on shipsthe International Convention for the Control and Management of Ship’s Ball astWater and Sediments68 . The company should establish in the SMS that ____has the overriding authorityand the responsibility to make decision with respect to safety and pollutionthe masterthe chief enginethe officer on dutythe engineer in charge of watch69 . The starting curent of an A.C motor is___ the rated current.the same asmuch larger thanless thanequals70 . In a vacuum distillation system, the case is the higher the pressure, _____.the saturation temperature is higherthe higher the saturation temperaturethe higher is the saturation temperaturethe saturation temperature is more high71 . _____________has a simultaneous suction and discharge actionThe singe acting displacement pumpThe double acting displacement pumpCentrifugal pumpThe gearwheel pump72 . Proper operation of the main engine reduction gear set requires the operation tomonitor ________.the sump oil leveloil flow sight glassesbearing temperaturesall of the above73 . A diesel engine fails to start because of water in the fuelIn order to start theengine, you should ______?turn engine with jacking geardrain filters and strainers and bleed off water at each injection pumpuse ether to start the engine with blow-down valves openblow through the cylinders and fuel lines with a drying agent正确答案为：B74 . In the starting process of a diesel engine, the main object is to attain thecompression conditions sufficient to _____turn the flywheelreduce frictionovercome inertiaignite the fuel75 . The coil of wire rotating in the magnetic field produces the_____.voltagecurrentpowerfrequency正确答案为：B76 . How does the ship security alert system work?（历年真题）when activated, it shall transmit a ship-to-ship security alertthe security alert it sent will be received by a competent authority designated bythe administrationthe system can raise some alarm on-board the ship the system shall be capable of being activated from the navigation station。