轮机英语试题及答案

轮机英语试题及答案前言本试题旨在帮助轮机专业学生及从业者巩固轮机英语核心词汇与专业知识，提升在船舶机舱环境中的英语应用能力试题涵盖船舶主机、辅机、电气系统、安全规范等关键领域，题型包括选择、判断及简答题，内容贴近实际工作场景，适合日常练习与考核使用

一、单项选择题（共30题，每题1分）A diesel engine convertschemical energyof fuelinto______energy todrive theship.A.mechanical B.electrical C.thermal D.hydraulicThe mainfunction of a fuel injection pumpin a diesel engineisto______.A.cool the engine B.inject fuelinto thecylinder C.start the engine D.control thespeedIn a marine diesel engine,the TDCstands for______.A.Top DeadCenter B.Total DieselCycle C.Turbine DriveComponentD.Temperature DetectionCenterWhich of the following is NOTa typeof marinepumpA.Centrifugal pump B.Reciprocating pump C.Gear pumpD.Steam turbineThepurpose of a heatexchanger isto______.A.increase the engine powerB.transfer heatbetween twofluidsC.store fuelD.cool the exhaust gasAgovernor in a diesel engine is used to______.第1页共10页A.control thefuel supplyB.start theengine C.cool theengine D.adjust the propeller speedThe fresh water system in a shipmainly circulates______to cool theengine.A.salt water B.sea water C.fresh waterD.distilledwaterWhich of the followingis asafety devicein a boiler systemA.Fuel oilpumpB.Pressure reliefvalve C.Feed waterheaterD.Steam trapInelectrical systems,a circuitbreaker is used to______.A.generate electricityB.protect thecircuit fromovercurrentC.control themotor speedD.measure voltageThe舵机steering gear is mainlyused tocontrol the______of theship.A.speed B.direction C.fuel consumptionD.navigationA marine diesel enginewith twostrokes per revolution iscalleda______engine.A.two-stroke B.four-stroke C.six-stroke D.eight-strokeThe cylinderhead of a dieselengine isconnected to thecylinder blockby______.A.bolts B.pipes C.gears D.beltsWhich of the followingis NOTa componentof afuel supplysystemfor a diesel engineA.Fuel tank B.Fuel filterC.Injector D.AlternatorThe seawater pump is usuallydriven by______.第2页共10页A.the main engine B.an electricmotor C.a gasturbine D.a steamturbineIn arefrigeration system,the evaporatoris thecomponentwhere______.A.heat is absorbed B.heat isreleased C.refrigerant iscompressedD.refrigerant isexpandedThe MARPOLConvention isrelated to______protection.A.air B.waterC.soil D.noiseA firemain ina shipis used to______.A.supply fueltotheengine B.provide waterforfirefighting C.cool theengine roomD.generateelectricityThe auxiliaryengine ina shipis mainlyused todrive______.A.the propellerB.generators C.pumps D.steering gearIn a dieselengine,the pistonring is used toprevent______.A.overheating B.fuel leakageC.oil leakageD.both BandCThe shaftalley ina shipis apassage for______.A.passengers B.cargo C.propeller shaftD.navigationequipmentA filterinahydraulic systemis used to______.A.increase pressureB.remove impuritiesC.store oilD.cool oil第3页共10页The mainswitchboard ina shipis usedto______.A.generate electricityB.distribute electrical power C.start the main engineD.control thesteering gearWhich of the followingis a typeof valvethat opensandcloses automaticallyA.Globe valveB.Gate valveC.Check valveD.ButterflyvalveThe emergencygenerator isusually powered by______.A.the mainengine B.a dieselengine C.a batteryD.thegridIn a ships ventilationsystem,the freshair inletis usedto______.A.cool theengine roomB.supply freshair C.removeexhaust gasD.control humidityThe fuelinjectiontiming ina dieselengine isadjusted toensure______.A.maximum powerB.smooth combustionC.low fuelconsumptionD.all ofthe aboveAthermostat inan enginecooling systemis usedto______.A.control theflow ofcooling waterB.heat theengine C.cooltheengineD.measure temperatureThe radar ina shipisadevice for______.A.navigation B.engine controlC.communication D.cargohandling第4页共10页Ina ships fireextinguishing system,CO₂is usedfor______.A.Class Afires B.Class Bfires C.Class Cfires D.Class DfiresThe shaftalignment isa processto ensure______.A.thepropellerturns smoothlyB.theengineruns athighspeed C.the mainengine andpropeller arealigned D.theengine isstarted easily

二、多项选择题（共20题，每题2分）Which ofthe following are componentsof adiesel enginesfuelsystemA.Fuel tankB.Fuel filterC.Injector D.TurbochargerThe mainfunctions of amarinegearbox include______.A.reducing speedB.changing directionC.transmittingpower D.increasing torqueInaboilersystem,the waterlevel gaugeisusedto______.A.measure watertemperature B.show waterlevel C.controlfuel supplyD.alarm forlow waterWhichofthe following aretypes ofmarinedieselenginesA.Two-stroke B.Four-stroke C.Gas engineD.Steam engineThe MARPOL附则I AnnexI ofMARPOL isrelated to______.A.oil pollutionB.chemical pollutionC.fuel oilD.sewageThe electricalprotective devices include______.A.circuit breakersB.fuses C.relays D.resistors第5页共10页A centrifugalpumpissuitable for______.A.high pressureB.large flowC.viscous fluidD.cleanfluidThe steeringgear systemconsists of______.A.steering wheelB.hydraulic pumpC.servo motorD.rudderIn aships airconditioning system,the coolingcoil islocatedin the______.A.air handlingunit B.refrigeration unitC.fresh airductD.return airductWhich ofthefollowingare safety devicesina shipA.Fire extinguisherB.Emergency alarmC.Fire doorD.LifeboatThe mainengine ofashipusually has______cylinders.A.4B.6C.8D.12The fresh water generator isusedto produce______.A.freshwaterfrom seawaterB.distilled waterC.saltwater D.hot waterInadieselengine,theexhaustsystem includes______.A.exhaust manifoldB.turbocharger C.silencer D.exhaustvalveThe cargowinch isusedto______.A.lift cargoB.lower cargoC.move cargohorizontally D.secure cargo第6页共10页Whichofthefollowingare partsofaships navigationbridgeequipmentA.Radar B.ECDIS C.Log D.VHF radioThelube oilsystem inadieselengine includes______.A.lube oiltankB.lube oilpumpC.oil coolerD.oilfilterThe emergencystop function ofamainenginecan beactivatedby______.A.the bridgeB.theengineroom controlpanel C.theemergency controlstation D.the firecontrol roomInashipselectrical system,the busbarisusedto______.A.distribute powerB.connect differentcircuits C.measure currentD.protect thesystemThe boilerblowdown isusedto______.A.remove scaleB.reduce waterhardness C.control steampressureD.clean theboiler tubeWhichofthefollowingarerelated toships firesafetyA.Fire detectionsystem B.Fire fightingequipment C.Fireprevention measuresD.Evacuation plan

三、判断题（共20题，每题1分）A four-stroke dieselengine hasfour strokesperrevolution.The fuelinjection pumpinadieselenginedelivers fuelatlow pressure.The mainfunctionofa heatexchanger isto heatfluids.第7页共10页TheMARPOLConvention wasadopted in

1973.A centrifugalpump canbe usedto输送transport highviscosityfluid.The steeringgeariscontrolled bythe bridgevia electricalsignals.The governorofadieselenginecontrols thefuel supplytomaintain speed.Thefreshwatersystemuses seawater ascooling medium.A circuitbreaker tripswhen overcurrentoccurs.The auxiliaryengine drivesthe maingenerator.The pistonofadieselenginemoves upand downin thecylinder.The firemain supplieswater toall firehydrants ontheship.A checkvalve allowsfluid toflow inboth directions.The shaftalley isa spacefor passengersto walk.The thermostatin thecooling systemkeeps theengine atoptimaltemperature.The emergencygeneratorispoweredbythemainengine.Theradarcan detectobstacles atsea.Thefueloil viscosityis measuredby aviscometer.The mainswitchboard distributeselectricalpowertodifferent partsoftheship.The lifeboatisasafetydevicefor emergencyevacuation.第8页共10页

四、简答题（共2题，每题5分）简述船舶主机启动系统的基本组成和作用说明船舶辅锅炉水位控制系统的工作原理参考答案

一、单项选择题1-5:ABADB6-10:ACDBB11-15:AADBA16-20:BBDDC21-25:BBCBB26-30:DAAC C

二、多项选择题1:ABC2:ABCD3:BD4:ABC5:AC6:ABC7:BD8:ABCD9:AB10:ABCD11:BCD12:AB13:ABCD14:AB15:ABCD16:ABCD17:ABC18:AB19:AB20:ABCD

三、判断题1:T2:F3:F4:T5:F6:T7:T8:F9:T10:T11:T12:T13:F14:F15:T16:F17:T18:T19:T20:T

四、简答题启动系统基本组成空气瓶、启动空气分配器、启动阀、空气滤清器、起动手柄等作用通过压缩空气推动主机启动，使曲轴旋转，实现主机从静止到运转的过程工作原理通过水位传感器检测锅炉水位，信号传输至控制器，若水位低于设定值，控制器打开给水阀补水；若水位过高，关闭给水阀，防止溢水，维持水位稳定，保障锅炉安全运行第9页共10页说明本试题涵盖船舶轮机核心英语知识，题目难度适中，可用于日常学习与考核答案严格对应题目，简答题简洁明了，符合实际应用需求第10页共10页。