汽車專業(yè)英語(yǔ)考試題

一．選擇題1.Theheartofautomobileis(A)AengineBbodyCchassisDelectricsystem2.Anengineismainlycomposedoftwomechanismsand（B）systemsAoneBfiveCfourDsix（C）holdsallthemaincomponentsandpartstogetherAengineBbodyCchassisDclutchThepowertraincarries(A)fromtheenginecrankshafttocarwheelsApowerBbodyCengineDclutchIn1886,KarlBenz(C)thefirstcarintheword.AfindBcomposeCbuiltDbuyToday,moreandmoremoderncarareequippedwithavarietyof（B）devicesApowrBelectronicBswitchDtransmissionEngineisaself-contained（A）unitvehicleApowerBbodyCengineCdeviceTheenginehas（D）ofotherparts.AeightyBninetyCsixtyDhundredsTheintakestrokebeginswiththepistonatthe（C）ABDCBMBCDTDCDCMPJustbeforethebottomofpowerstroke,theexhaustvalveCAupsBdownsCclosesDopenThebodyisdesignedtokeeppassengers（B）andcomfortable.AlookBsafeBlikeDdiscussThe（D）providespowertomovetheautomobile.ApistonBtransmissionCclutchDengineThetransmissiondeliversthepowertothe（B）.AengineBdifferentialCchassisDgeneratorThetransmissiondeliversthepowertothe（C）AtwoBthreeCfourDfiveMostautomobileenginesoperateonthe（B）stroke-cycleprincipleAeasyBprimaryCcomfortableDleisurely Thecoolingsystemkeepstheenginerunningatitsmost（D）temperatureAlowBconstantChighDefficient17.Thespringofradiatorcapdeterminesthe（C）pressureinthecoolingsystem.AlongBwideCmaximumDminimumOxygenSensorismountedintothe（A）manifoldarea.AexhaustBintakeCvalveDblock19.Oxygensensorisemployedin（C）loopsystemstomodifythebasicpulsewidthafterthefactAsmallBbigCclosedDopened20.（C）onenginepartsalsoprovideslubricationforenginestart-up.AfuelBvaporCoilDwater 21.Inmostcars,theoilpumpisinthecrankcase（A）thesump.AaboveBonCbottomDin22.Thefansarecontrolledeitherwithathermostaticswitchorbytheengine（D）AhintBsignalCvalveDcomputer23.Aradiatorisatypeof（C）ex-changer.ApowerBelectricCheatDcool24.Mostvehiclestodayuse（）injectorpercylinder25.The（A）thattheinjectorisopen,themorefuelisinjected.AlongerBshorterCbiggerDsmaller二．多選題26.(A),(B),and(C)areessentialformsoftransportation.AAutomobilesBtrucksCbusesDplanes27.Anautomobilebodyisasheetmetalshellwith(B),(C),andatrunkdeckbuiltintoit.AchairBwindowsCahoodDdesk28.Attheexhauststroke,theexhaustvalve(B)andtheintakevalve(D).AcloseBclosesCopenDopens29.Thecoolingsystemofawater-cooledengineconsistsoftheengine'swaterjacket,a,awaterpump,aradiatorandradiatorcap,a(BC)ect.AcamshaftBthermostatCfanDcylinderTheengineoilformsasealbetweenthe(B),(C),andcylindersAwheelsBringsCpistonsDcrankshafts31.Moderncarsuseoneoftwocommontypesofoilpumps--the(B)-typeandthe(C)-type.AvaneBgearCrotorDblade32.Theoilhasmanypurposes:therearelubricate,(B),(D),cleanect.AheatBsealCwarmDcool33.Thegasolineengineismainlycomposedof(B)mechanism，and(D)system.AoneBtwoBfourDfive34.Crank-connectingrodmechanismincludingthe(B)，connecting-rod，pistonand(D)etcAcamshaftBcrankshaftCpistonDflywheel35.Therearetwotypesofcoolingsystems：(A)coolingand(C)coolingAliquidBoilCairDvapor三．判斷題T36.Theengineisaself-containedpowerunitwitchconvertstheenergyoffuelintomechanicenergyformovingthevehicle.F37.Themajorityofenginesinmotorvehiclestodayarefive-strokepistonengine.T38.Toprovideamoreevenandcontinuousflowofpower.automobileshaveengineswithsix,eight,twelveorfourteencylinders.T39.Foridentificationpurpose,manufacturesclassifyautomobileenginesjustbytheircylinderarrangement.T40.Justbeforethebottomofpowerstroke,theexhaustvalvecloses。T41.Sweptvolume:thevolumebetweenTDCandBDC.T42.Compressionratio=（sweptvol+clearancevol）/（clearancevol）T43.Anyautomobileiscomposedofthesectionsuchasengine,chassis,body,electricsystem.F44.Automobilehavemanykindofstructureandshape,buttheirbasicstructureisdifferenteachother.T45.Theheartofautomobileisengine.T46.Thecoolingsystemremovesexcessiveheatfromtheengine.T47.Thelubricationsystemisimportantinkeepingtheenginerunningsmoothly.T48.Thepowerfromtheenginemovesthroughthetransmission.T49.Thetransmissiondeliversthepowertothedifferential.F50.Thefuelsystemsuppliesgasolineordieselfueltotheoilpan.T51.Theoilpumpcontinuestocirculatetheoilaslongastheengineisrunning.F52.Theoilfilterensuresthatonlydirtyoilenterstheengine.T53.Mostfiltersalsohaveapressure-reliefvalve,orbypassvalve.F54.Anti-scuffadditiveshelptopolishmovingparts,notincludingcams,pistons,andcylinderwalls.F55.Mostmoderncarsusecopperradiators.T56.Aradiatorisatypeofheatex-changer.T57.EFIusessolenoidvalvescalledinjectorstometerfueldelivery.T58.Asrpmisincreased,uptoapoint,airflowalsoincrease