汽车专业英语智慧树知到答案章节测试2023年武汉科技大学

第一章测试Theheartofautomobileis()

A:chassis

B:engine

C:body

D:electricsystem

答案:B()holdsallthemaincomponentsandpartstogether.

A:engine

B:brake

C:clutch

D:chassis

答案:D()isasheetmetalshellwithwindows,doors,ahood,andatrunkdeckbuiltintoit.

A:clutch

B:body

C:engine

D:chassis

答案:BAutomobilehavemanykindofstructureandshape,buttheirbasicstructureisdifferenteachother.（）

A:对

B:错

答案:BAnyautomobileiscomposedofthesectionsuchasengine,chassis,body,electricsystem.（）

A:错

B:对

答案:B第二章测试The()storesliquidfuelanddeliversittotheengines.

A:brakingsystem

B:steeringsystem

C:fuelsystem

D:coolingsystem

答案:CThe()circuitscoolantthroughtheengineandthewallsoftheengineblockandhead

A:clutch

B:fueltank

C:body

D:waterpump

答案:DAsthecrankshaftnearstheitssecondcompleterevolution,thepistonagainapproachesthe()position.

A:TDC

B:ATDC

C:BBDC

D:BDC

答案:AAftercirculatingthroughtheengine,theoildropsbacktotheoilpan.（）

A:错

B:对

答案:BTheexhaustsystemcannotreducethenoiseoftheburnedgasesleavingtheenginecylinders.（）

A:对

B:错

答案:B第三章测试The()inthecylinderisconnectedtothetopofaconnectingrod.

A:piston

B:cylinder

C:crankshaft

D:valve

答案:AAcrankshaft’sjobinanengineisto()

A:changelinearmotionintorotationalmotion

B:deliverfueltothecylinders

C:keepcylinderheadsinplace

D:convertfuelenergyintomechanicalenergy

答案:AThecrankconnectingrodmechanismconsistsofthreeparts—().

A:camshaftandvalvegroup

B:crankshaftandflywheelgroup

C:engineblockgroup

D:pistonandconnectingrodgroup

答案:BCDCrank-connectingrodmechanismisthemainworkingmechanismofreciprocatinginternalcombustionengine.（）

A:对

B:错

答案:AThetopofthecylinderblockiscoveredwiththecylinderhead.（）

A:对

B:错

答案:A第四章测试Anaverageair/fuelratioforgoodcombustionisabout()byweight.

A:18:1

B:20:1

C:13:1

D:15:1

答案:DAvalveconsistsofa()and()stem.（）

A:rocker

B:stem

C:head

D:tappet

答案:BCThe()providestheforcenecessarytoclosethevalveandholdittightlyagainstitsseat.

A:valvespring

B:valve

C:rod

D:tappet

答案:ATheinletvalveisopenedbeforeTDCandclosedafterBDC.（）

A:对

B:错

答案:ACamshaft’sfunctionistodeliversparkpositivelyandtimelyinadefinitesequence.（）

A:对

B:错

答案:B第五章测试The()thattheinjectorisopen,themorefuelisinjected.

A:smaller

B:shorter

C:bigger

D:longer

答案:DMostvehiclestodayuse()injectorpercylinder.

A:4

B:1

C:3

D:2

答案:BThe（）onthefueltankisusedtokeepthefuelfromsplashingout,releasethevacuumcreatedbythefuelremoving,andpreventvaporsfromescapingdirectlyintotheatmosphere.

A:fuelcap

B:baffle

C:sump

D:filter

答案:AForadieselfuelgoestothecarburetor,thentothefuelnozzles.（）

A:对

B:错

答案:BThefuelsystemsuppliesgasolineordieselfueltotheoilpan.（）

A:对

B:错

答案:B第六章测试Whatisthecoolingagentintheliquidcoolingsystem?()

A:air

B:lubrication

C:coolant

D:gasoline

答案:CThewaterpumpuses()tosendfluidtotheoutsidewhileitspins,causingfluidtobedrawnfromthecentercontinuously.

A:gravity

B:gasforce

C:centrifugalforce

D:friction

答案:CThecoolingsystemofawater-cooledengineconsistsoftheengine’swaterjacket,a（）andradiatorcap,acoolingfan(electricorbelt-driven),hoses,andusuallyanexpansion(overflow)tank.

A:waterpump

B:radiator

C:fuelcap

D:thermostat

答案:ABDThecoolingsystemisdesignedtoworkallthetimewhentheengineisrunning.（）

A:对

B:错

答案:BSomeenginesarecoatedtheinsideofthetopofthecylinderheadwithathinlayerofceramictoreducetheamountofheatthatistransferredfromthecombustionchambertothemetalpartsoftheengine.（）

A:错

B:对

答案:B第七章测试1.Foranenginetomakethebestuseofthefuel,thesparkshouldoccurbeforethepistonreachesthetopof（）。

A:theexhauststroke

B:theintakestroke

C:thecompressstroke

D:thecompressionstroke

答案:DThepistonspeedincreasesastheenginespeedincreases.Thismeansthatthefastertheenginegoes,thesparkhastooccur（）。

A:earlier

B:uncertain

C:nochangeisnecessary

D:later

答案:AAccordingtoyourunderstanding,retardingthetimingmayalsoeliminate（）。

A:ignition

B:combustion

C:knocking

D:compression

答案:CTheprimaryroleofthedistributoristodistributehighvoltagefromthe（）tothecorrectcylinder.

A:rotor

B:coil

C:sparkplug

D:piston

答案:BFunctionsofignitionsystemare（）

A:ignitethemixturepiston

B:controlthetimingofspark

C:sendsparktocorrectcylinder

D:createaspark

答案:ABCD第八章测试Whatisthemostcommonproblemassociatedwithclutches?（）。

A:Thefrictionmaterialonthediskwearsout

B:Thefrictionmaterialonthediskmakesacruise

C:Thefrictionmaterialonthedisklaststoolong

D:Thefrictionmaterialonthediskmakesawhiningnoise

答案:AHowmanyclutchesareinanautomatictransmission?（）。

A:One

B:Hundreds

C:Thousands

D:Several

答案:DWhatistheothernameforathrow-outbearing?（）。

A:Planetarybearing

B:Flywheelbearing

C:Clutchreleasebearing

D:Turnaroundbearing

答案:CInacar’sclutch,aflywheelconnectstotheengine,andaclutchplateconnectstothe（）.

A:axle

B:transmission

C:shaft

D:wheels

答案:BWhichofthefollowingarecommonreasonsthatacar’sclutchmaystick?（）

A:Airinthehydraulicline

B:Alooseshiftknob

C:Abrokenorstretchedclutchcable

D:Afailurefriction

答案:ACD第九章测试Whattellstheautomatictransmissionhowfastthecarisgoing?（）。

A:Thegearpump

B:Thegovernor

C:Theturbine

D:Thesump

答案:BInanautomatictransmission,theshiftleverhooksuptothe（）。

A:vacuummodulator

B:throttlevalve

C:manualvalve

D:inletvalve

答案:CWhichstatementiswrongaboutAT?（）。

A:Thetorqueconverterwhichactslikeaclutchtoallowthevehicletocometoastop.ingearwhiletheengineisstillrunning

B:Planetarygearsetswhicharethemechanicalsystemsthatonlyprovidethevariousforwardgearratios

C:Thehydraulicsystemwhichusesaspecialtransmissionfluidsentunderpressurebyanoilpumpthroughthevalvebodytocontroltheclutchesandbandsinordertocontroltheplanetarygearsets

D:Thegovernorandthemodulatororthrottlecablethatmonitorsspeedandthrottlepositioninordertodeterminewhentoshift

答案:BWhichpartsendstransmissionfluidunderpressuretoallpartsofthetransmissionandtorqueconverter?（）

A:Hydraulicsystem

B:Oilpump

C:One-wayclutch

D:Planetarygearsets

答案:AWhichsectionisthebrainoftheautomatictransmissionthatdirectshydraulicfluidtothenumerousvalves?（）

A:Valvebody

B:Torqueconverter

C:Planetarygearsets

D:Oilpump

答案:A第十章测试Whenmightanopendifferentialbeaproblem?（）。

A:Goinstraight

B:Drivingonhotasphalt

C:Drivingonice

D:Makingaturn

答案:CWhenawheelslips,whattypeofdifferentialallowsmoretorquetobetransferredtothenon-slippingwheel?（）。

A:Limitedslipdifferentials

B:Variabledifferentials

C:Stabledifferentials

D:Closeddifferentials

答案:AThedriveshaftconnects（）to（）.

A:thetransmissionoutput;thedifferentialpinionshaft

B:thecylinder;theclutch

C:thetransmissioninput;thedifferentialpinionshaft

D:theclutch;thetransmissionoutput

答案:A（）allowsthedriveshafttoflexwhenthedriveanglechanges.

A:Pitmanarm

B:Steeringknuckle

C:U-joint

D:Balljoint

答案:CAtwo-piecetubulardriveshaftwitharubberelementpressedbetweenthetwotubes,whichreduces（）,isusedonsomevehicle.

A:steeringangle

B:inertia

C:torque

D:torsionalvibration

答案:D第十一章测试Whatisthepurposeofallthebendsandloopsinbrakelines?（）。

A:Theyaddflair

B:Theyaddflexibility

C:Theyhelpbrake

D:Theyhelpdissipateheat

答案:BWhatdobrakecalipersdo?（）。

A:Theymoveslightly

B:Theysqueezethebrakepadsagainstthebrakerotor

C:Alloftheabove

D:Theycontroltheflowofbrakefluid

答案:BWhatisothernameforabrakerotor?（）。

A:Brakepiston

B:Brakedisc

C:Brakecylinder

D:Brakecaliper

答案:BWhatisarguablythemostimportantautomobilebrakepart?（）

A:Thebrakepad

B:Noneoftheabove

C:Thebrakeshoes

D:Thebrakecaliper

答案:DTherearesomegeneraltypesofdiscbrake（）

A:floatingcaliper

B:fixedcaliper

C:coilcaliper

D:rotorcaliper

答案:AB第十二章测试Thelowersteeringratiogivesthesteeringaquickerresponse.（）

A:对

B:错

答案:AThepumpmovesmuchmorefluidthannecessarywhentheengineisrunningatfasterspeed.（）

A:对

B:错

答案:AAdrivercanusethesteeringsystemtocontrolthepositionofacar’sfrontwheels.（）

A:错

B:对

答案:BTherack-and-piniongearsetconvertstherotationalmotionofthesteeringwheelintothelinearmotion.（）

A:错

B:对

答案:BTherack-and-piniongearsetprovidesagearreduction.（）

A:对

B:错

答案:A第十三章测试Thethickerthecoilsinacoilspring,thestifferitisandthehigheritsrate.（）

A:对

B:错

答案:ATorsionbars’springratedependsonthediameterandlengthofthebar.（）

A:错

B:对

答案:BThestabilizerbarhelpsbalancetheloadbetweenthewheels.（）

A:错

B:对

答案:BInmostofcars,themountingoftheshockabsorberslessensaxletwist.（）

A:错

B:对

答案:BSuspensionsystemsmustsupportbothroadholding/handlingandridequality,whichareatoddswitheachother.（）

A:对

B:错

答案:A第十四章测试Diskbrakesrequirehigherapplicationpressurethandodrumsbecausetheyarenotself-actuating.（）

A:错

B:对

答案:BOptimumbrakingisachievedwhentheslipis10percentto15percent.（）

A:错

B:对

答案:BOver-applyingfoundationbrakescancausewheelstolock(100%slip).（）

A:错

B:对

答案:BIfthefrontwheelslock,thevehiclewilltendtospinout(rearendmovingforward).（）

A:错

B:对

答案: