車輛專業(yè)英語試題及答案1.Whenperformingaroutineinspectionofavehicle'sbrakingsystem,whichofthefollowingcomponentsshouldbecheckedforwearandproperoperation?()A.Brakepads

B.Sparkplugs

C.Fuelinjectors

D.Radiatorhoses

Answer:A2.Duringapre-tripinspection,whatistheprimarypurposeofcheckingthetiretreaddepth?()A.Toensureproperfuelefficiency

B.Toverifyadequatetractionandsafety

C.Toinspectthewheelalignment

D.Tocheckfortirepressure

Answer:B3.Whichofthefollowingtoolsismostcommonlyusedtomeasurethethicknessofabrakerotorduringmaintenance?()

A.MicrometerB.Torquewrench

C.MultimeterD.Dialindicator

Answer:A4.Whendiagnosinganenginemisfire,whichofthefollowingsensorsismostlikelytoprovidecriticaldataforidentifyingtheissue?()

A.OxygensensorB.Crankshaftpositionsensor

C.Coolanttemperaturesensor

D.MassairflowsensorAnswer:B5.Whatistheprimaryfunctionofavehicle'scatalyticconverterintheexhaustsystem?()A.ToreduceenginenoiseB.Toconvertharmfulexhaustgasesintolessharmfulemissions

C.ToincreasefuelefficiencyD.ToregulateexhaustflowAnswer:B6.Duringanoilchange,whichofthefollowingstepsisessentialtoensureproper

lubricationoftheengine?()A.ReplacingtheairfilterB.CheckingthetransmissionfluidlevelC.Usingthecorrectviscosityandtypeofoilspecifiedbythemanufacturer

D.InspectingthebatteryterminalsAnswer:C7.Whatisthemostcommoncauseofavehicle's"checkengine"lightilluminatingduetoafaultintheemissionssystem?()

A.LowtirepressureB.AloosegascapC.Dirtycabinairfilter

D.Overfilledengineoil

Answer:B8.Whenreplacingavehicle'sserpentinebelt,whichofthefollowingproceduresis

criticaltopreventdamagetotheengineaccessories?()

A.TighteningthebelttomaximumtensionB.AligningthebeltproperlyonallpulleysC.ReplacingthebatteryatthesametimeD.Usingabeltthatislongerthanspecified

Answer:B9.Whichofthefollowingsymptomsismostindicativeofafailingalternatorinavehicle?()A.Dimmingheadlightswhentheengineisidling

B.OverheatingengineC.RoughengineidleD.Excessiveexhaustsmoke

Answer:A10.Duringavehicle'swheelalignment,whichofthefollowinganglesisadjustedtoensurepropertirewearandsteeringresponse?()

A.CasterangleB.Enginecompressionratio

C.Transmissiongearratio

D.CoolantpHlevelAnswer:A11.Whatistheprimarypurposeofavehicle'santi-lockbrakingsystem(ABS)?()

A.ToincreasestoppingdistanceB.Topreventwheellockupduringhardbraking

C.Toimprovefueleconomy

D.Toreduceenginenoise

Answer:B12.Whentroubleshootingavehicle'selectricalsystem,whichofthefollowingtoolsismostusefulforidentifyingashortcircuit?()

A.OBD-IIscannerB.MultimeterC.TorquewrenchD.Tirepressuregauge

Answer:B13.Whichofthefollowingcomponentsisresponsibleforregulatingthevoltageinavehicle'selectricalsystem?()

A.StartermotorB.Voltageregulator

C.FuelpumpD.IgnitioncoilAnswer:B14.Duringavehicle'scoolingsystemflush,whatistheprimaryreasonforreplacingthe

oldcoolantwithnewcoolant?()A.ToimproveengineperformanceB.Topreventcorrosionandmaintainpropercoolingefficiency

C.ToincreasefuelefficiencyD.ToreduceexhaustemissionsAnswer:B15.Whatisthemostcommonsymptomofacloggedairfilterinavehicle?()

A.ReducedenginepowerandaccelerationB.OverheatingengineC.ExcessiveexhaustsmokeD.DimmingheadlightsAnswer:A16.Whenreplacingavehicle'sheadlightbulb,whichofthefollowingprecautionsismost

importanttoavoiddamagetothebulborsocket?()A.WearingglovestoavoidoilcontaminationB.UsingahigherwattagebulbforbettervisibilityC.TighteningthebulbasmuchaspossibleD.Replacingtheentireheadlightassembly

Answer:A17.Whichofthefollowingtoolsismostcommonlyusedtoremoveandinstallavehicle'ssparkplugs?()A.Socketwrenchwithsparkplugsocket

B.PliersC.ScrewdriverD.HammerAnswer:A18.Duringavehicle'stransmissionfluidchange,whatistheprimaryreasonforchecking

thefluidlevelwiththeenginerunning?()A.Toensureaccuratemeasurementofthefluidlevel

B.TowarmuptheengineC.TocheckforleaksD.ToinspectthetransmissionfilterAnswer:A19.Whatisthemostcommoncauseofavehicle'ssteeringwheelvibratingathighspeeds?()A.Unbalancedtires

B.Lowengineoil

C.Dirtyairfilter

D.Faultyoxygensensor

Answer:A20.Whendiagnosingavehicle'ssuspensionissue,whichofthefollowingsymptomsismostindicativeofwornshockabsorbers?()

A.Excessivebouncingafterhittingabump

B.EnginemisfireC.DimmingheadlightsD.OverheatingengineAnswer:A21.Whichofthefollowingcomponentsisresponsibleforconvertingtherotationalmotionoftheengineintoelectricalenergyinavehicle?()A.Alternator

B.Startermotor

C.Fuelpump

D.Ignitioncoil

Answer:A22.Duringavehicle'sbrakefluidflush,whatistheprimaryreasonforusingthecorrect

typeofbrakefluidspecifiedbythemanufacturer?()A.Toensureproperbrakingperformanceandpreventsystemdamage

B.ToimprovefuelefficiencyC.ToreduceenginenoiseD.ToincreasetirelifeAnswer:A23.Whatisthemostcommonsymptomofafailingfuelpumpinavehicle?()

A.EnginestallingordifficultystartingB.OverheatingengineC.DimmingheadlightsD.ExcessiveexhaustsmokeAnswer:A24.Whenreplacingavehicle'sbattery,whichofthefollowingstepsisessentialtoensure

properoperation?()A.Cleaningthebatteryterminalsandconnections

B.Replacingthesparkplugsatthesametime

C.ChangingtheengineoilD.InspectingthebrakepadsAnswer:A25.Whichofthefollowingtoolsismostcommonlyusedtomeasurethecompressioninavehicle'senginecylinders?()

A.Compressiongauge

B.MultimeterC.Torquewrench

D.Tirepressuregauge

Answer:A26.Duringavehicle'sexhaustsysteminspection,whatistheprimaryreasonforcheckingforleaksordamage?()A.Topreventharmfulexhaustgasesfromenteringthecabin

B.ToimprovefuelefficiencyC.ToreduceenginenoiseD.ToincreasetirelifeAnswer:A27.Whatisthemostcommoncauseofavehicle'stransmissionslippingorshifting

poorly?()A.LoworcontaminatedtransmissionfluidB.Dirtyairfilter

C.Faultyoxygensensor

D.Unbalancedtires

Answer:A28.Whendiagnosingavehicle'selectricalissue,whichofthefollowingcomponentsismostlikelytocauseintermittentpowerloss?()

A.WeakorfailingbatteryB.CloggedfuelfilterC.WornbrakepadsD.Dirtycabinairfilter

Answer:A29.Whichofthefollowingproceduresismostcriticalwhenreplacingavehicle'stimingbelt?()A.Aligningthetimingmarksproperlytopreventenginedamage

B.Replacingthesparkplugsatthesametime

C.ChangingtheengineoilD.Inspectingthebrakerotors

Answer:A30.Duringavehicle'scoolingsystempressuretest,whatistheprimarypurposeof

pressurizingthesystem?()A.Toidentifyleaksinthecoolingsystem

B.Tochecktheenginecompression

C.Toinspectthetransmissionfluid

D.TomeasurethetirepressureAnswer:A31.Whatisthemostcommonsymptomofafailingwaterpumpinavehicle?()A.Overheatingengine

B.Dimmingheadlights

C.EnginemisfireD.Excessiveexhaustsmoke

Answer:A32.Whenreplacingavehicle'sthermostat,whichofthefollowingstepsisessentialto

ensureproperenginecooling?()A.Installingthethermostatinthecorrectorientation

B.Replacingthesparkplugsatthesametime

C.ChangingtheengineoilD.Inspectingthebrakepads

Answer:A33.Whichofthefollowingtoolsismostcommonlyusedtoremoveandinstallavehicle'sserpentinebelttensioner?()

A.Serpentinebelttoolorbreakerbar

B.PliersC.ScrewdriverD.HammerAnswer:A34.Duringavehicle'sfuelsysteminspection,whatistheprimaryreasonforcheckingthefuelpressure?()A.Toensureproperfueldeliverytotheengine

B.ToimprovefuelefficiencyC.ToreduceenginenoiseD.ToincreasetirelifeAnswer:A35.Whatisthemostcommoncauseofavehicle'sengineknockingorpinging?()A.Low-qualityorincorrectoctanefuel

B.DirtyairfilterC.Faultyoxygensensor

D.UnbalancedtiresAnswer:A36.Whendiagnosingavehicle'ssuspensionnoise,whichofthefollowingcomponentsismostlikelytocauseaclunkingsoundoverbumps?()

A.Wornordamagedcontrolarmbushings

B.DirtycabinairfilterC.FaultyignitioncoilD.LowengineoilAnswer:A37.Whichofthefollowingproceduresismostcriticalwhenreplacingavehicle'sCVaxle?()A.Properlyaligningandsecuringtheaxletopreventvibrationsordamage

B.Replacingthesparkplugsatthesametime

C.ChangingtheengineoilD.InspectingthebrakerotorsAnswer:A38.Duringavehicle'sbrakesystembleed,whatistheprimaryreasonforpumpingthe

brakepedalslowlyandsteadily?()A.Topreventairfrombeingreintroducedintothesystem

B.TochecktheenginecompressionC.ToinspectthetransmissionfluidD.TomeasurethetirepressureAnswer:A39.Whatisthemostcommonsymptomofafailingmastercylinderinavehicle'sbrakesystem?()A.Spongyorsoftbrakepedal

B.Overheatingengine

C.Dimmingheadlights

D.Excessiveexhaustsmoke

Answer:A40.Whenreplacingavehicle'signitioncoils,whichofthefollowingstepsisessentialto

ensureproperengineoperation?()A.Installingthecoilsinthecorrectorderandorientation

B.Replacingthesparkplugsatthesametime

C.ChangingtheengineoilD.InspectingthebrakepadsAnswer:A41.Whichofthefollowingtoolsismostcommonlyusedtodiagnoseavehicle'sonboardcomputer(ECU)forfaultcodes?()

A.OBD-IIscannerB.MultimeterC.TorquewrenchD.Tirepressuregauge

Answer:A42.Duringavehicle'sdifferentialfluidchange,whatistheprimaryreasonforusingthe

correcttypeoffluidspecifiedbythemanufacturer?()

A.Toensureproperlubricationandpreventcomponentdamage

B.ToimprovefuelefficiencyC.ToreduceenginenoiseD.ToincreasetirelifeAnswer:A43.Whatisthemostcommoncauseofavehicle'stransmissionoverheating?()

A.LoworcontaminatedtransmissionfluidB.Dirtyairfilter

C.Faultyoxygensensor

D.Unbalancedtires

Answer:A44.Whendiagnosingavehicle'ssteeringissue,whichofthefollowingsymptomsismostindicativeofafailingpowersteeringpump?()

A.Difficultyturningthesteeringwheel,especiallyatlowspeeds

B.EnginemisfireC.DimmingheadlightsD.OverheatingengineAnswer:A45.Whichofthefollowingproceduresismostcriticalwhenreplacingavehicle's

radiator?()A.Properlysealingtheconnectionstopreventleaks

B.Replacingthesparkplugsatthesametime

C.ChangingtheengineoilD.InspectingthebrakerotorsAnswer:A46.Duringavehicle'semissionstest,whatistheprimaryreasonforcheckingthelevelsofhydroca