qst initial test powertrain入門考試動(dòng)力部分紙質(zhì)考題電子版復(fù)印后供學(xué)員使用

練習(xí) 確定變速器控制單元（帶722.9變速器的車輛）的安裝位置Determinetheinstallationlocationofthetransmissioncontrolunitinvehicleswithtransmission722.9.在行李箱內(nèi)左側(cè)（行駛方向InthetrunkontheleftInthefrontpassengerInthevehicleinteriorabovethesteeringOntheelectrohydrauliccontrollerunitinthe發(fā)動(dòng)機(jī)艙內(nèi)左側(cè)（行駛方向 Intheenginecompartmentontheleft練習(xí) 722.9和722.6變速器中裝有幾個(gè)“變速器內(nèi)部”轉(zhuǎn)速傳感器Howmany"transmission-internal"rpmsensorsarethereintransmissions722.9and722.611intransmission722.933intransmission722.622intransmission722.944intransmission722.6722.92 2eachintransmissions722.6and練習(xí) ISM執(zhí)行什么功能WhattasksareperformedbythePerformingEmergency-P 駐車功Key-PLockingthetransmissioninposition Performing練習(xí) Whichsequencemustbeadheredtowhenfittingthedisksinmultidiskbrakesandmultidiskclutches?ThethickestdiskmustbeinstalledonthesideoftheretainingThethickestdiskmustbeinstalledonthesideoftheThediskscanbeinstalledinanyThethinnestdiskmustbeinstalledexactlyinthecenterofthedisk Thediskspringmustbeinstalledonthesideofthe練習(xí) WhichvariantsforcoolingtheautomatictransmissionareyoufamiliarAir-cooledtransmissionWithouttransmissionoilOil-cooledtransmissionWater-cooledtransmission Transmissioncoolerwithelectric練習(xí) 更換722.9變速器的變速器控制單元后，必須進(jìn)行哪些操作Whichjobsmustbeperformedafterrecingthetransmissioncontrolunitintransmission722.9?SCNPerformSCN設(shè)置/ alize/activatetransmissioncontrol通過(guò)DAS對(duì)ESPPerformfullinitialstartupofESPcontrolunitwithVGSProgramVGStransmissioncontrol Correcttransmissionoil練習(xí) 以下關(guān)于722.9變速器油位檢查的描述哪些是正確的Whichstatementsabouttheoillevelcheckontransmission722.9are僅能以D或RTheoiltemperaturecanonlybedeterminedinDor可使用DASTheoiltemperaturecanbedeterminedusing選檔桿處于任何檔位時(shí)都可溫Thetemperaturecanbereadoutwiththeselectorleverinany95°CTheoillevelcheckalwaysoccursat Theoillevelcanbedeterminedusingtheoil練習(xí)8. 對(duì)于722.9變速器，將變速器外殼安裝到變矩器外殼上時(shí)，必須注意什么？Whatmustyouobservewhenmountingthetransmissionhousingonthetorqueconverterhousingwithtransmission722.9?ThemountingboltsmustalwaysbereOnlysteelboltsmaybeThesealbetweenthetwocomponentsmustbeinstalledwithThetransmissionhousingmustbeheatedto Thetransmissionhousingmustlieflatagainstthetorqueconverterhousingwithnogaps練習(xí) Whichstatementsaboutthewetstart-upclutch(NAK)are泵齒輪和渦輪葉輪集成在NAKThepumpgearandturbinewheelareintegratedintheNAKTheNAKcannotbe更換NAKNofurtheroperationsarenecessaryafterrecementoftheNAKTheclutchtesoftheNAKcanberecedNAK TheNAKmustbetaughtinafterithasbeenre練習(xí) 以下哪項(xiàng)敘述適用于M270的發(fā)動(dòng)機(jī)正時(shí)WhichstatementontheenginetimingoftheM270通過(guò)采用壓縮的雙排鏈連接曲軸和凸輪Crankshaftandcamshaftsareconnectedviaaduplexchainwithcentral6Thegearsonthecamshaftshavea6mmboreforTDCThecamshaftadjustershavenomarkingaswheretheystandrelativetothecamshaftsisunimportant通過(guò)壓縮閥將凸輪軸和凸輪軸調(diào)節(jié)器完全固定入Camshaftsandcamshaftadjustersareexclusivelyfixedincebymeansofthecompressionwiththecentralvalve Thechaintensionerisadetent-typechaintensionerthatisalwaystoberecedfollowingremoval練習(xí) 以下哪項(xiàng)敘述適用于M270的發(fā)動(dòng)機(jī)冷卻WhichstatementontheenginecoolingoftheM270Theturbochargeriswater-Thedisengageablewaterpumpisvacuum-Thethree-diskthermostatisheatedThecylinderheadhasonlyasimplewatere)Theexhaustgasrecirculationvalveiswater-練習(xí) 以下哪項(xiàng)敘述適用于M270的發(fā)動(dòng)機(jī)潤(rùn)滑WhichstatementontheenginelubricationoftheM270TheM270hadtobeequippedwithadrysumplubricationduetothetransverseTheturbochargerisconnectedtothepressurefeedTheregulatedoilpumpcanbeswitchedoverbetweentwoTheoilpumpisdrivenviaageartogetherwiththeLanchester通過(guò)壓力閥將M2708 TheoilpressureintheM270islimitedto8barbymeansofapressure練習(xí)13. M270的燃油噴射系統(tǒng)具有如下特征...ThefuelinjectionsystemoftheM270worksinthepartial-loadrangeinstratified-chargeisequippedwithsolenoidisadirectinjectionsystemthatonlyworksinhomogeneousisequippedwithpiezo200e)workswithupto200barfuel練習(xí) 在M270上進(jìn)行高壓調(diào)節(jié)需要哪些部件Whichcomponentsarerequiredforthehigh-pressureregulationofthePressureregulatingFuelpressureandtemperaturec)tycontrolEnginecontrole)Fuelfeed練習(xí) M270的燃油低壓系統(tǒng)具有如下特征Thefuellow-pressuresystemoftheM270配備按需燃油壓力控制isequippedwithaneed-basedfuelpressurecontrolhasonefeedandonereturnbetweenthefuelandhigh-pressurehasaservicevalvethatisonlyaccessiblefromthevehicleprovidesfueltothehigh-pressurepumpviathetycontrol10e)worksinlimp-homemodewithupto10練習(xí) M270的點(diǎn)火系統(tǒng)具有如下特征TheignitionsystemoftheM270hasoneignitioncoileachfortwoworksinmulti-sparkmodeuponcoldstartandsometimesduringwarm-alwaysworksinmulti-sparkmodeduetothedirect2has2sparkplugspere)hassparkplugsthatcanbeinstalled練習(xí)17. M270的渦輪增壓配有以下哪些部件...TheturbochargingoftheM270has...anelectricVTGaVTGaturbochargerablow-offe)acombinedhighandlow-pressure練習(xí) M270的渦輪增壓器具有如下特征TheturbochargeroftheM270isweldedtotheexhaustislocatedintheairductingdownstreamofthethrottleismonitoredbyatemperaturesensorintegratedintotheturbocharger(tubochargerprotection)compressestheairsuckedinbythechargeaire)isattachedattheengineatthefrontinthedirectionof練習(xí) M270的ECO啟動(dòng)/停止功能具有如下特征TheECOstart/stopfunctionoftheM270startstheengineusingtheisinactiveiftheconditionsonthepartofthedriverarenot駕駛員不能關(guān)閉ECOECOfunctioncan’tbeswitchoffby在新款B7G-DCTisonlyofferedinthenewB-Classincombinationwiththeautomatictransmissione)ECOisactiveiftheusedparking練習(xí) ThecrankcaseventilationsystemoftheM270isconnectedtotheintakemanifoldviaavalvewhenworkswithanoilcentrifugethatisdrivenbytheexhausthasacycloneseparatoronthecylinderheadgoesintotheintakemanifoldupstreamoftheturbochargerwithwideopene)isattachedattheengineatthefrontinthedirectionof練習(xí) WhatisusedtoachievethepowerdistributioninthetransferThespurTheTherelaymechanisminthetransferThedifferentlever Thedifferentbevel練習(xí) 以下關(guān)于221車型分動(dòng)箱油路描述，哪些是正確的Whichstatementaboutthetransfercaseoilcircuitofthemodelseries221isThetransfercaseandautomatictransmissionusedifferentThetransfercaseisdirectlydwithuncooledoilbytheautomatictransmissionprimarypump.CommonoilcircuitwiththeautomaticTheentireoiloftheautomatictransmissionoilcoolerfirstflowsthroughthetransfercase.自動(dòng)變速箱和分動(dòng)箱使用相同的油，但油路彼此 Automatictransmissionandtransfercasehavethesameoiltypebutseparate練習(xí) Whichstatementsaboutthe xledifferentiallockare所有M級(jí)、GL級(jí)和RAllM,GLandR-Classescomewithanin xledifferentiallockasstandard軸間差速鎖在N72s34The xledifferentiallockisactivatedineveryswitchpositionoftheThelockingactioncanbeuptoThein xledifferentiallockenablesavariablepowerdistributionbetweenthefrontandrearaxle. Disengagementofthein xledifferentiallockdecouplesthefrontaxlefromthepowerflow.練習(xí) 可以對(duì)W221分動(dòng)箱進(jìn)行哪項(xiàng)維修操作WhatrepairworkcanyoucarryoutattheW221transferRecementoffrictionRecementoftaperedrollerAllsealing 輪、正齒Sungears,spur Doublenetarygear練習(xí) WhichstatementabouttheDownhillSpeedRegulation(DSR)isDSR10ThespeedintheDSRcanbesetin10km/hTheDSRfunctionisaHill-StartTheDSRfunctionassistsindownhillThespeedissetviatheDSR DSRisactiveupto70練習(xí) WhichstatementsonthetransfercaseareMTherearethreedifferenttransfercasesontheM-Alltransfercasesareequippedwithastep-downratio;onetransfercasealsohasanin xledifferentiallock.Airsuspensionisonlyavailablewithatwo-stagetransfer低速檔和差速鎖集成在帶Off-RoadProAstep-downratioandadifferentiallockareintegratedinthetransfercasewiththeOff-RoadProengineeringpackage.SAE85W90 AlltransfercasesarefilledwithSAE85W90練習(xí) Theefforttoshiftinlowrangeistoolarge.WhatcouldbethereasonforThedrivingspeedonshiftoperationistooThemechanicsoftheHigh/LowadjustmentisTheclutchpackageinthetransfercaseisTheshiftrodsarebentorincorrectly Thetransfercaseactuatormotorissluggishor練習(xí) 以下關(guān)于W166ML/R63AMG傳動(dòng)系統(tǒng)的描述哪些是正確的WhichstatementsaboutthedrivetrainoftheW166ML/R63AMGareM156Incontrastwiththestandardversion,onlytheM156engineisfittedintheThesingle-speedtransfercaseisreind.Thedouble-speedtransfercasehasastep-downratioof2:1.(2.93:1onstandard)The xledifferentialisdesignedasanetarygearThetorquedistributionbetweenthefrontandrearaxleis Therearaxledifferentialisonlyavailablewithate-typedifferentiallockandhasbeenrein dincomparisontothestandardversion.練習(xí) 以下關(guān)于M級(jí)、GL級(jí)和R級(jí)車輛牽引的描述哪些是正確的WhichstatementsabouttowingarecorrectforM,GL,andR-Class牽引車/掛車首選用于而不是牽引Transportonatowingvehicle/traileristobepreferredover如果ISMIftheISMisdefective,thepropellershaftsmustbe車載電氣系統(tǒng)電壓發(fā)生故障，必須拆下ISM且自動(dòng)變速器手動(dòng)換至“P”O(jiān)nfailureoftheon-boardelectricalsystemvoltage,theISMmustberemovedandtheautomatictransmissionmanuallyshiftedto"P".80km/h100kmTheumpermissibletowingdistanceis100kmataspeedof80 Iffront-axledamageispresent,thepropellershaftontherearaxlemustbedisconnectedattheflangeandthevehicletowedwithaliftedfrontaxle.練習(xí) WhichstatementaboutthechargingoftheM278isThechargeaircoolinghasaseparatecooling-water2Theturbochargersareactuatedvia2boostpressurepressureTheboostpressurecontrolisp aticallydwithintakemanifoldTheintakeairmassofeachturbochargerisrecordedbyahotfilmMAF增壓空氣壓力控制無(wú)法通過(guò)XENTRY/DAS TheboostpressurecontrolcannotbeactuatedbyXENTRY/練習(xí) WhichstatementabouttheignitionsystemoftheM278isM278TheM278alwayshasthemulti-sparkignitionThesparkplugmustberecedaftereachIntheprimarypatternthecombustioncycleisFaultsatthesparkplugcanbedetectedinthesecondaryignitionShouldafaultoccurintheignitionsystem,thatdoesnotaffectthesmooth engineoperation.練習(xí) Whichstatementaboutthefuelhigh-pressuresystemoftheM278is在經(jīng)過(guò)維修之后，必須使用DAS/XENTRYAftercompletionofrepairs,aleaktestmustalwaysbecarriedoutwithBeforerepairmeasuresarestarted,thevehiclebatterymustThepiezoinjectorshaveafuelreturnThehigh-pressurelinesoftheinjectorsmustberecedaftereach更換燃油導(dǎo)軌上的密封組件不需要用到工具 Thesealingpackagesintherailarerecedwithoutspecial練習(xí) WhichstatementaboutthetimingdriveoftheM278is40度位置時(shí)，凸輪軸脈沖盤上的標(biāo)記必須指Themarkingsonthepulsewheelsofthecamshaftsmustpointupwardsat40°afterignitionTDCofthe1stcylinder.ThefrontcylinderheadcoverisfastenedwithaluminumTheoscilloscopeimageofthesynchronizationcomparestheintakeandtheexhaustcamshaftswithoneanother.Onlytheintakecamshaftsaredrivenbythetiming當(dāng)氣門室蓋被拆除后，發(fā)動(dòng)機(jī)曲軸仍舊可以在不需要任何工具的情況Whenthecylinderheadcoversareremoved,theenginemaycontinuetoberotatedatthecrankshaftwithoutusingspecialtools.練習(xí)34. WhichstatementaboutthedifferencesbetweenthefuelsystemsoftheM276M278enginesis200 umrailpressureis200baronbothBothenginesalwayshave2high-pressureBothsystemshaveafueldiagnosticBothsystemshavepiezoM276 OntheM276,thefuelhigh-pressureandtemperaturesensorisscrewedintotheleft-handrail.練習(xí) 哪種說(shuō)法對(duì)M276和M278的發(fā)動(dòng)機(jī)的燃油系統(tǒng)的診斷是正確的WhichstatementaboutdiagnosisofthefuelsystemsoftheM276andM278enginesisTheactualvalueforactuationofthetycontrolvalveisspecifiedinThelow-pressurecircuitmustbecheckedintheeventofmalfunctionsinthehigh-pressuresystem.Todetectaleakyinjector,thecorrespondingcylindermustbecheckedwithanendoscope.有工具用于分離兩側(cè)氣缸，以確定所在之處Therearespecialtoolsforcheckingbothcylinderbanksseparayfor在DASXENTRY有一個(gè)用于檢查高壓泵（包括：雙高壓泵）執(zhí)行輸InDAS/XENTRYthereisatestprocedureforcheckingthedeliveryrateofthehigh-pressurepump(s).練習(xí)36. 關(guān)于引擎M276/M278高壓燃油系統(tǒng)功能和部件程序調(diào)節(jié)步驟描述正確的是？Whichstatementabouttheadaptationprocessesforcomponentsandfunctionsofthehigh-pressurefuelsystemofenginesM276/M278iscorrect?TheadaptationdatamustberesetafterworkonthefuelAdaptationhasnoeffectonthesystemTheadaptationdatadonothavetobetakenintoaccountbecausethiscarriedoutindependentlybythecontrolunit.DASXENTRY中含有混合氣自適應(yīng)Inordertocheckforproperoperationofadaptation,thereisthe“Quicktestofmixtureadaptation”procedureinDAS/XENTRY. Adaptationdoesnothavetobetakenintoaccountwhenrecing練習(xí) 哪個(gè)陳述關(guān)于在M276/M278燃油噴嘴總成上的工作過(guò)程是正確的WhichstatementabouttheworkprocedureforinjectorassemblyontheM276/M278iscorrect?TheinjectorsareremovedtogetherwiththeAllsealsintherail,ontheinjectorandtheretainingclipsoftheinjectorarerecedafterremoval.NospecialtoolsarerequiredtoinstallasealingringontheinjectorTherailisalwaysrecedafter Theinjectorisremovedfromthecylind