第1題Whatisthethemeoftoday'sclass?

ABasicmaintenanceofelectricvehiclesBCognitionanduseofhigh-voltagesafetyprotectionequipmentfornewenergyvehiclesCElectricvehiclebatterytechnologyDFiresafetyincarrepairshops第2題Whicheventdescribedinthespeechemphasizestheimportanceofsafeoperatingprocedures?

AAtechnicianwasinjuredwhilehandlingbatteriesBAtechnicianwaselectrocutedandunconsciousduetoimproperuseofprotectiveequipmentCAtechnicianwasinjuredduetousingthewrongfireextinguisherDAtechniciandamagedthevehicleduetonotreadingtherepairmanual第3題Whichofthefollowingdoesnotbelongtoinsulationsafetyequipment?

AInsulationpadBElectricianinstallationCAntistaticworkbenchDWater-basedfireextinguisher第4題Whichofthefollowingisunnecessarywhencheckingwater-basedfireextinguishers?

ACheckiftheappearanceisintactandundamagedBCheckifthesignboardisclearCCheckforrustinsidethefireextinguisherDCheckifthepressureisnormal第5題Whatshouldbeobservedwhentestingtheselfcheckingfunctionoftheelectricrod?

AIstheindicatorlightcontinuouslyonBIstheindicatorlightflashingintermittentlyandaccompaniedbyintermittentalarmsoundCCheckiftheelectricrodemitsabuzzingsoundDCheckiftheelectricrodautomaticallydischarges第6題Whatisthemainfunctionofaninsulationpad?

APreventstaticelectricitygenerationBProvideinsulationprotectionduringmaintenanceCAbsorboilstainsDReducenoise第7題Whatisthemainfunctionofelectricaldischargeequipment?

APreventstaticelectricitygenerationBProvideinsulationprotectionduringmaintenanceCReleasethestoredelectricalenergyinthehigh-voltagecapacitorDReducenoise第8題Whatisthemainfunctionoftheisolationzone?

APreventstaticelectricitygenerationBPreventpersonnelfromenteringtheworkareaatwillCAbsorboilstainsDReducenoise第9題Whatshouldbecheckedbeforeusinginsulatedgloves?

AIstheappearanceintactBIsthesizeappropriateCDoyoulikethecolorDIsitwithinthetestingperiodandisthetestcertificateintact第10題Whatshouldbecheckedbeforeusinginsulatedsafetyshoes?

AIstheappearanceintactBIsthesizeappropriateCDoyoulikethecolorDIsitwithinthetestingperiod,isthetestcertificateintact,andisthereanydamageonthesurface第11題Whichofthefollowingareinsulationsafetyequipment?

AInsulationpadBElectricianinstallationCAntistaticworkbenchDInsulatedglovesEIsolationzone正確答案：ABDE第12題Whataspectsneedtobecheckedwheninspectingadrypowderfireextinguisher?

AIstheappearanceintactBIsthepressurenormalCWeightoffireextinguisherDIsthesealingringintactEIsthenozzleblocked正確答案：ABDE第13題Whataspectsneedtobecheckedwheninspectingwater-basedfireextinguishers?

AWhethertheappearanceisintactandundamagedBIsthesignboardclearandcompleteCIsthepressurenormalDIsthesealingperformancegoodEIsthererustinsidethefireextinguisher正確答案：ABCD第14題Whataspectsneedtobecheckedwheninspectingtheelectricrod?

AIsthevoltagelevelconsistentwiththetestedequipmentBIsthecertificateofconformitycompleteCIsthesurfacedryandcleanDIstheselfcheckfunctionnormalEIsthereanydamageorabnormalityaftertheelectricalinspectioniscompleted正確答案：ABCDE第15題Whichofthefollowingarehigh-voltagesafetyprotectionequipmentfornewenergyvehicles?

AInsulatedglovesBInsulatedshoesCAntistaticworkbenchDInsulatedclothingEInsulationmaintenancetools正確答案：ABCDE第1題Whatisthethemeofthislesson?

ANewEnergyVehicleBatteryTechnologyBHighvoltagecontrolmodulefornewenergyvehiclesCPoweroutageandverificationprocessofhigh-voltagesystemfornewenergyvehiclesDSafetywarningsignsfornewenergyvehicles第2題Whatisthepurposeofsettingalockingmechanismforhigh-voltagecableconnectorsinnewenergyvehicles?

APreventrustingofconnectorsBToavoidaccidentaltriggeringordisconnectionduringdrivingduetofactorssuchasvibrationCBeautifuldesignDReducetheweightofconnectors第3題Whichofthefollowingtypesoflockingmechanismsdoesnotbelongtohigh-voltagecableconnectors?

AFirstlevellockingmechanismBSecondarylockingmechanismCThreelevellockingmechanismDFourlevellockingmechanism第4題Whatpreparationsareneededbeforeperformingapoweroutageoperationonahigh-voltagesystem?

AChecktheinsulationpad,setupisolationpiles,setupwarninglines,andplacewarningsignsBPrepareinsulationtoolsandprotectiveequipmentCReadthecarusermanualDAlloftheaboveare第5題Howshouldthehigh-voltagecablebehandledafterdisconnectingit?

APlaceitrandomlyBProperlyplaceuntiltherepairiscompletedCDirectlydiscardDAlloftheaboveareacceptable第6題Whatkindofmultimetershouldbeusedduringelectricaltesting?

AOrdinarymultimeterBAsuitableandqualifiedinsulationmultimeterwithappropriatevoltagelevelCAnytypeofmultimeterDAlloftheaboveareacceptable第7題Whatshouldbedoneafterdischarging?

ADirectlyproceedtothenextstepBElectricalverificationmustbeconductedagaintoensureeffectivedischargeCCleanuptheworkareaDAlloftheaboveare第8題Whatsafetyprotectiveequipmentmustmaintenancepersonnelwearduringoperation?

AInsulatedgloves,insulatedshoesBSafetyhelmet,gogglesCAlloftheaboveareDNoneoftheabovearetrue第9題Whatlockingmechanismisusuallyusedforthemaintenanceswitchofnewenergyvehicles?

AFirstlevellockingmechanismBSecondarylockingmechanismCThreelevellockingmechanismDAviationplug第10題WhatshouldbedisconnectedbeforedisconnectingtheDCbusconnectorofthehigh-voltagepowerbattery?

ALowvoltagebatterynegativeterminalBPowerbatteryauxiliarycontrolconnectorCChargingportDNoneoftheabovearetrueIIMultiple-ResponseQuestions(Chooseallthatapply)第11題Whichofthefollowingarethetypesofhigh-voltagecableconnectorsfornewenergyvehicles?

AFirstlevellockingmechanismtypeBSecondarylockingmechanismtypeCThreelevellockingmechanismtypeDAviationplugEOrdinaryhouseholdplug正確答案：ABCD第12題Whatprotectiveequipmentshouldbecheckedandwornbeforeperformingahigh-voltagesystempoweroutageoperation?

AInsulatedglovesBInsulatedshoesCProtectivegogglesDSafetyhelmetEOrdinarygloves正確答案：ABCD第13題Whatarethestepsinvolvedintheelectricalverificationprocessofahigh-voltagesystemafterapoweroutage?

ASetthemultimetertoDCvoltagemodeBDetecttheoutputterminalofthehigh-voltageDCpowerbatterybusandrecordthevoltagedataCIfthemeasurementdatashowsthatthereisstillvoltage,dischargetreatmentisrequiredDAfterthedischargeiscompleted,repeatthemeasurementtoensurethatthemultimetervoltagedisplays0VECleanuptheworkarea正確答案：ABCD第14題Whichofthefollowingareprecautionswhenperforminghigh-voltageoperations?

AOperatorsmustwearnecessarysafetyprotectiveequipmentBUseinsulatedtoolsCAfterdisconnectingthehigh-voltagecable,thecableshouldbeproperlyplacedDWhenconductingelectricaltesting,asuitableandqualifiedinsulatedmultimeterwithappropriatevoltagelevelmustbeusedEAnytypeoftoolcanbeusedforoperation正確答案：ABCD第15題Whichofthefollowingdevicesorcomponentsmayusehigh-voltagecableconnectors?

AHighvoltagepowerbatteryBHighvoltagecontrolboxCDC/DCconverterDCarchargerEOrdinaryhouseholdappliances正確答案：ABCDChapter3Homework第1題Whatisthecorecontentofthislesson?

AMethodsforextinguishingfiresinnewenergyvehiclesBThefunction,composition,andperformanceindicatorsofpowerbatteriesCRecyclingandreuseofpowerbatteriesDChargingTechnologyforElectricVehicles第2題Whatarethefourmaincomponentsofapowerbatterysystem?

ABatterymoduleBMS、Batterycasing,auxiliarycomponentsBMotor,electroniccontrol,battery,chargerCEngine,gearbox,chassis,bodyDCarcharger,brakeenergyrecoverydevice,generator,externalfastchargingdevice第3題Whatisthecompositionofapowerbatterymodule?

AParallelconnectionofindividualbatteriesandseriesconnectionofmultiplemodulesBSinglebatteryconnectedinseries,multiplemodulesconnectedinparallelCSinglebatteryconnectedinseries,multiplemodulesconnectedinseriesDParallelconnectionofindividualbatteriesandmultiplemodules第4題WhatisthemainfunctionofaBatteryManagementSystem()?

AControlthevehicle'sdrivingspeedBProtectandmanagebatteriestoensuresafety,reliability,andextendtheirlifespanCAdjustthetemperatureinsidethecarDPlaymusic第5題Whatisthemainfunctionofthepowerbatterybox?

AStorageofelectricalenergyBFixingandprotectingbatterymodulesCControlbatterycharginganddischargingDProvideinvehiclenetworkcommunication第6題Whatarethemaindrawbacksoflead-acidpowerbatteries?

AHighcostBLowenergydensity,heavyweightCPoorsafetyDLongcyclelife第7題Whatarethemainadvantagesofnickelhydrogenpowerbatteries?

ALowcostBHighenergydensity,environmentallyfriendly,andlongcyclelifeCThebestsecurityDNotsensitivetotemperature第8題Whatarethedrawbacksoflithium-ionpowerbatteries?

ALowenergydensityBHighselfdischargerateCSensitivetotemperature,highcostDShortcyclelife第9題Whatarethemainadvantagesoflithiumironphosphatepowerbatteries?

AHighestenergydensityBHighsafety,longcyclelife,environmentalprotectionCLowestcostDSuitableforhighcurrentdischarge第10題Whatarethemainapplicationareasofsolid-statebatteriescurrently?

AAllelectricvehiclesBHighendexperimentalelectricvehicles,aerospaceCElectricbicyclesDElectrictricycleIIMultiple-ResponseQuestions(Chooseallthatapply)第11題Whatarethehigh-voltagecomponentsofthepowerbatterysystemconnectedtotheoutside?

APositivehigh-voltagebusbarBNegativehigh-voltagebusbarCLowvoltagebatterydetectioncontrolharnessDMotorcontrolharnessEVehiclenetworkcommunicationharness正確答案：ABC第12題Whatcomponentsdoesthepowerbatteryboxinclude?

ATopcoverBLowerthetrayCTransitionpartsDProtectiveboardEBoltsandlocatingpins正確答案：ABCDE第13題Whataretheauxiliarycomponentsofpowerbatteries?

AFuseBRelayCDiverterDConnectorEEmergencyswitch,smokesensor正確答案：ABCDE第14題Whatarethetypesofpowerbatteries?

ALeadacidbatteryBNickelhydrogenpowerbatteryCLithiumionpowerbatteryDLithiumcobaltoxidepowerbatteryELithiummanganeseoxidepowerbattery正確答案：ABCDE第15題Whatarethecharacteristicsoflead-acidpowerbatteries?

ALowcostBGoodhighcurrentdischargeperformanceCGoodsafetyandgoodrecyclingDLowenergydensityEHeavyweightFThecyclelifeisabout300-500times正確答案：ABCDE第16題Whataretheapplicationareasofnickelhydrogenpowerbatteries?

AHybridelectricvehicleBPartialportableelectronicdevicesCElectrictricycleDElectrictoolsEElectricBus正確答案：ABD第17題Whataretheapplicationareasoflithium-ionpowerbatteries?

AConsumerElectronicsBElectricvehiclesCEnergystoragesystemDElectricbicyclesEElectrictricycle正確答案：ABC第18題Whatarethecharacteristicsoflithiumcobaltoxidepowerbatteries?

AHighenergydensityBLargeinitialdischargecapacityCPoorsafetyDCobaltresourcesarescarceandcostlyEShortcyclelife正確答案：ABCDE第19題Whataretheapplicationareasoflithiummanganeseoxidepowerbatteries?

AElectricbicyclesBLowspeedelectricvehiclesCPartialenergystoragesystemDPureelectricvehicleEElectricBus正確答案：ABC第20題Whatarethemainperformanceindicatorsofpowerbatteries?

ABatterycapacityBEnergyCSelfdischargerateDComparedtoenergyESpecificpower正確答案：ABCDEChapter4Homework第1題Whatisthepurposeofmaintainingnewenergyvehicles?

AImprovevehicleperformanceandextendservicelifeBReducemaintenancecostsandensuredrivingsafetyCBothareDJustforthesakeofaesthetics第2題Whatarethetwotypesofmaintenancefornewenergyvehicles?

ADailymaintenanceandprimarymaintenanceBRegularmaintenanceandnonregularmaintenanceCSecondarymaintenanceanddiagnosticrepairDHighvoltagesystemmaintenanceandroutinesystemmaintenance第3題Whatarethelevelsofmaintenanceworkfordrivemotors?

ADailymaintenance,primarymaintenanceBDailymaintenance,primarymaintenance,secondarymaintenanceCLevel1maintenance,Level2maintenance,Level3maintenanceDDailymaintenanceandsecondarymaintenance第4題Whatisthemainfunctionofthedrivemotorinelectricvehicles?

ADrivethevehicletotravelBBatteryCPowersteeringassistanceDBrakingsystem第5題Howtorecoverenergyfromthedrivemotor?

AConvertelectricalenergyintomechanicalenergyduringaccelerationBConvertkineticenergyintoelectricalenergyduringbrakingorslidingCAbsorbingenergythroughsolarpanelsDConnectanexternalpowersourcetochargewhileparking第6題Whatarethemaincomponentsofapermanentmagnetsynchronousmotor?

APermanentmagnet,stator,rotorBPermanentmagnetsynchronousmotor,rotarytransformer,temperaturesensor,coolingcirculatingwaterchannelandhousingCBattery,electroniccontrolsystem,motorDDCmotor,ACasynchronousmotor,permanentmagnetsynchronousmotor第7題Whatistheworkingprincipleofthedrivemotor?

AConvertmechanicalenergyintoelectricalenergyBReversethedirectcurrentofthepowerbatterytoalternatingcurrenttodrivethepermanentmagnetsynchronousmotortorotateCConvertkineticenergyintothermalenergyDGeneratingpowerbyburningfuel第8題Whatisthefunctionofthedrivemotorcoolant?

ALubricatemotorbearingsBTakeawaytheexcessheatgeneratedbythemotorduringoperationCProvideelectricalenergyforthemotorDPreventmotorrust第9題Whereisthedrivemotorusuallyinstalled?

ABottomofthevehicleBUnderthefrontenginecompartmentpowertrainbracketCTopofthevehicleDTrunk第10題Whatshouldbedonefirstwhencheckingthedrivemotor?

ACheckifthereisanyabnormalnoisefromthemotorBCheckthecoolantlevelCWearinsulatedglovesandprotectiveshoesDCleanthesurfaceofthemotorMultiple-ResponseQuestions(Chooseallthatapply)第11題Whatisincludedintheregularmaintenanceofnewenergyvehicles?

ADailymaintenanceBFirstlevelmaintenanceCSecondarymaintenanceDDiagnosisandmaintenance正確答案：ABC第12題Whatarethecontentsofthefirstlevelmaintenanceworkcenter?

ACleaningBLubricationCTightenupDCheckEAdjustment正確答案：BCD第13題Whatitemsarerequiredtobecheckedforsecondarymaintenance?

AMotorwiringearBThreephasewireboltatthemotorendCThreephaseshieldedwireatthemotorendDWaterproofconnectorformotorEThreephasehighvoltagecableformotor正確答案：ABCDE第14題Whatarethefunctionsofdrivingmotors?

ADrivethevehicletotravelBEnergyrecoveryCBatteryDPowersteeringassistanceEBrakingsystem正確答案：AB第15題Whatarethestepsinvolvedinthedailyinspectionandmaintenanceprocessofthedrivemotor?

ACheckthecoolantofthedrivemotorBChecktheconnectingpipelineofthedrivemotorsystemCCheckthedrivemotorconnectorsandfasteningboltsDCleanandinspectthedrivemotoranditscontrollerEChecktheinsulationlayerofthewiringharnessFCheckifthereisanyabnormalnoisefromthedrivemotorduringvehicleoperation正確答案：ABCDEChapter5Homework第1題Whatisthemainfunctionofthelightingsystemintheeraofnewenergyvehicles?

ABeautifuldecorationBNightroadlighting,interiorlightingofcarriages,vehiclewidthmarkings,instrumentsandnightmaintenance,etcCIncreasevehiclespeedDReducevehiclenoise第2題Whatarethetwomaincategoriesofautomotivelightingfixtures?

ALightingfixturesandsignalfixturesBInternalandexternallightingfixturesCHighendandlow-endlightingfixturesDElectricandnonelectriclightingfixtures第3題Whereisthedimmerswitchassemblylocated?

ABottomrightcornerofsteeringwheelBBottomleftofsteeringwheelCCenterconsoleDRoofofthecar第4題Howmanypeopleareneededtocooperateincompletingthevehiclelightinginspection?

A1personB2peopleC3peopleD4people第5題Whencheckingthesidelights,taillights,andlicenseplatelights,whereshouldthemainlightswitchbeplaced?

AHeadlightpositionBPositionofthesmalllightCFoglamppositionDFlashposition第6題Underwhatcircumstancesdofoglightsusuallywork?

AInanycaseBWhenthemainlightswitchisplacedinthesmalllightpositionCWhenthemainlightswitchisplacedintheheadlightpositionDWhenthemainlightswitchisplacedintheflashingposition第7題Whencheckingthelowbeamoftheheadlights,whereshouldthemainlightswitchbeplaced?

APositionofthesmalllightBHeadlightposition,withtheswitchinthelowbeamposition(middlepositionbetweentopandbottom)CHeadlightposition,withtheswitchinthehighbeamposition(lowerpositionbetweentopandbottom)DHeadlightposition,andtheswitchisintheflashingposition(upperpositionbetweentopandbottom)第8題Whencheckingtheturnsignalandautomaticreturnoftheturnsignalswitch,whereshouldtheignitionswitchbeplaced?

AOFFpositionBONpositionCSTARTpositionDACCposition第9題Whatdobrakelightsandtaillightsshare?

AAsingletaillightbulbBAdualtaillightbulbCTwoindependentlightbulbsDAlightstrip第10題Whencheckingthereversinglights,whatstateshouldthevehiclebein?

ADriveslowlyBCompletelystopped,motoridlingCCompletelystop,motorstallsDNormaldrivingMultipleChoiceQuestions(10)第11題Whatarethecomponentsofacarlightingsystem?

AHeadlightsBFoglampCInstrumentlightsDTurnsignallightsEHazardwarninglight正確答案：ABCDE第12題Whatarethetypesofautomotivelightingfixturesincluded?

AHeadlightsBFoglampCLicenseplatelightDInstrumentlightsECeilinglight正確答案：ABCDE第13題Whatarethetypesofcarsignallightsincluded?

ATurnsignallightsBHazardwarninglightCWidthindicatorlightDTaillights第14題Whatarethelearningstepsforvehiclelightinspectiongestures?

AAperformsoperationregistrationBBisresponsibleforcommandingCPressingthehornonceindicatesenteringthemaintenanceprocessDBindicatesreadinessatthefrontofthecarEAoperatesthelightsaccordingtogestures正確答案：ABCDE第15題Whatarethecontentsofexternallightinginspectionandmaintenance?

AInspectionofsidelights,taillights,andlicenseplatelightsBFoglampinspectionandmaintenanceCHeadlightlowbeaminspectionDHeadlighthighbeaminspection正確答案：ABCDChapter6Homework第1題Whatarethemaincomponentsofthebrakingsystemfornewenergyvehicles?

AServicebrakesystemandparkingbrakesystemBServicebrakesystem,parkingbrakesystem,andauxiliarybrakesystemCServicebrakesystemandauxiliarybrakesystemDParkingbrakesystemandauxiliarybrakesystem第2題Whatisthemainfunctionofthebrakingsystem?

AImprovevehiclespeedBSlowdown,stop,andparkthevehicleCEnhancethepowerperformanceofvehiclesDBeautifytheappearanceofvehicles第3題Whatarethecharacteristicsofbrakefluidandwhatimpactwillithaveonthebrakesystemifitisnotreplacedforalongtime?

AStronghygroscopicitycausestheboilingpointofbrakefluidtorise,affectingthebrakingeffectBStronghygroscopicityleadstoadecreaseintheboilingpointofbrakefluid,affectingthebrakingeffectCStrongvolatilityleadstoadecreaseintheboilingpointofbrakefluid,affectingthebrakingeffectDStrongvolatilitycausestheboilingpointofbrakefluidtorise,affectingthebrakingeffect第4題Howtocheckthebrakefluidlevel?

AObservewhetherthebrakefluidlevelinthereservoirisbetweentheMAXandMINmarkingsBOpenthereservoircapandsmelltheodortodetermineCTouchthereservoirwithyourhandsandfeelthetemperatureDListenforanyabnormalnoisefromthebrakingsystem第5題Whenthewatercontentofthebrakefluidisgreaterthanwhat,isitnecessarytoreplacethebrakefluid?

A1%B2%C3%D4%第6題Howmanykilometersoryearsdoesthevehicleneedtohaveitsbrakefluidreplacedduringnormaldriving?

A20000kmor1yearB30000kmor1.5yearsC40000kmor2yearsD50000kmor2.5years第7題Whataspectsshouldbepaidattentiontowhencheckingbrakepipelinesandhoses?

AArethereanydamages,deformations,orcracksonthesurfaceandjointsBArethereanyphenomenasuchascorrosion,leakage,distortion,etcCAreallclampsonthepipelinetightenedDAlloftheaboveare第8題Whatoperationisrequiredbeforecheckingthefreetravelofthebrakepedal?

AOperatethevacuumboosterpumpBStopthevacuumboosterpumpandpressthebrakepedalseveraltimesCReleaseelectronicparkingDMeasurepedalheight第9題Whatordershouldbefollowedwhenreplacingbrakefluid?

ARandomorderBEmissionsequencerequiredbyvehiclemaintenancemanualCFromlefttorightDFromrighttoleft第10題Whichofthefollowingisnotsomethingtobeawareofduringthebrakefluidreplacementprocess?

ADonotmixbrakefluidsofdifferenttypesandbrandsBWhenthebrakefluidabsorbsmoistureorcontainsimpurities,itshouldbereplacedinatimelymannerCThereplacedbrakefluidshouldmeettherequiredgradeofthevehicleDAnytypeofbrakefluidcanbeusedMultiplechoicequestions第11題Whatarethemainaspectsofbrakefluidinspection?

ABrakefluidlevelBBrakefluidcolorCBrakefluidmoisturecontentDBrakefluidodor正確答案：AC第12題Whataspectsshouldbepaidattentiontowhencheckingbrakepipelinesandhoses?

AArethereanydamages,deformations,orcracksonthesurfaceandjointsBArethereanyphenomenasuchascorrosion,leakage,distortion,etcCAreallclampsonthepipelinetightenedDIsitincontactwiththewheelsorbodyofthevehicle正確答案：ABCD第13題Whatarethemainaspectsofbrakepedalinspection?

APedalconditionBPedalheightCBrakepedalfreetravelDBrakepedaltravelallowance正確答案：ABCD第14題Whatshouldbenotedduringtheprocessofreplacingbrakefluid?

ADonotmixbrakefluidsofdifferenttypesandbrandsBWhenthebrakefluidabsorbsmoistureorcontainsimpurities,itshouldbereplacedinatimelymannerCWhenthevehicle'sbrakingdeviates,itisnecessarytochooseahigh-qualitybrakefluidforreplacementandreplacetheleathercupatthesametimeDIfimpuritiesorsedimentarefoundinthebrakefluid,itshouldbereplacedpromptly正確答案：ABCD第15題Whichofthefollowingsituationsrequirereplacementofbrakefluid?

AThebrakefluidlevelistoolowBThewatercontentofthebrakefluidisgreaterthan3%CBrakefluidcontainsimpuritiesorsedimentDVehicletravelsover40000kilometers正確答案：BCD第16題Howtocheckthefreetravelofthebrakepedal?

AStopthevacuumboosterpumpBSteponthebrakepedalseveraltimesCMeasurepedalresistanceDMeasurethedistanceofpedalmovement正確答案：ABD第17題Howtocheckthebrakepedaltravelallowance?

AReleaseelectronicparkingBOperatethevacuumboosterpumpCSteponthebrakepedalandmeasurethepedaltravelallowanceDMeasurethetravelallowanceatthesamepointasthebrakepedalheightcheck正確答案：ABCD第18題Whatarethecomponentsofthebrakingsystemfornewenergyvehicles?

AServicebrakesystemBParkingbrakesystemCAuxiliarybrakingsystem(motorfedbraking)DElectronicvacuumboosterpump正確答案：ABC第19題Whatelseneedstobedonebesidesreplacingthebrakefluidwhenmaintainingtheservicebrakesystem?

ACheckthebrakepipelinesandhosesBCheckthebrakepedalCCheckthefourwheelbrakesDCleanthebrakingsystem正確答案：ABC第20題Whichofthefollowingstatementsiscorrect?

ABrakefluidhasstronghygroscopicityBExcessivewatercontentinbrakefluidcancausetheboilingpointofthebrakefluidtoriseCExcessivefreetravelofthebrakepedalcanaffectthebrakingeffectDEnsuringthesafetyperformanceofthecarbrakingsystemiscrucialfordrivingsafety正確答案：ACDChapter7Homework第1題Whatarethecorecomponentsoftheairconditioningsystemfornewenergyvehicles?

ACondenserBElectriccompressorCEvaporatorDElectronicexpansionvalve第2題Whatisthebiggestdifferencebetweentheairconditioningsystemofnewenergyvehiclesandthatoftraditionalfuelvehicles?

AUsinganelectriccompressorBThereisnoheatingsystemCNorefrigerationsystemDThestructureiscompletelydifferent第3題Whatarethemainheatingsystemsusedformostmidtolowendnewenergyvehicles?

APTCmoduleheatingBHeatpumpairconditioningCEngineresidualheatDSolarheating第4題Whichofthefollowingisnotacomponentoftheairconditioningsystemfornewenergyvehicles?

AElectriccompressorBCondenserCEvaporatorDThrottlevalve第5題Whatarethemainmethodsforcheckingthedailymaintenanceofairconditioningsystemsinnewenergyvehicles?

ALook,listen,touchBSmell,taste,smellCMeasurement,measurement,andcalculationDAsk,cut,anddiagnose第6題Whatstateshouldthecondenserfinsoftheairconditioningsystemfornewenergyvehiclesbekeptin?

ATheremaybeasmallamountofblockageBTheinterioroftheheatsinkiscleanandtherearenoblockagesbetweenthefinsCTheremaybeasmallamountofdustpresentDTheremaybeasmallamountofoilstains第7題Howoftenistheairconditioningcompressorregularlymaintained?

AEveryyearBEverytwoyearsCEverythreeyearsDEveryfiveyears第8題Whichofthefollowingisnotpartofregularmaintenanceforairconditioningcompressors?

AChecktheintakeandexhaustpressureBCheckifallfastenersarelooseCCheckifthereisanyairleakageattheshaftsealDReplacetheairconditioningfilterelement第9題Howoftendocondensersandcoolingfansundergoregularmaintenance?

AEverysixmonthsBEveryyearCEverytwoyearsDEverythreeyears第10題Howoftenistheairfilterelementoftheairconditioningsystemreplaced?

AEverythreemonthsBEverysixm