汽车理论第一篇 基础知识8章 机动车专业英语Word下载.docx

汽车理论第一篇 基础知识8章 机动车专业英语Word下载.docx

《汽车理论第一篇 基础知识8章 机动车专业英语Word下载.docx》由会员分享，可在线阅读，更多相关《汽车理论第一篇 基础知识8章 机动车专业英语Word下载.docx（13页珍藏版）》请在冰豆网上搜索。

power 

train 

has 

two 

maan 

functions 

:

it 

conveys 

powerfrom 

the 

engine 

to 

wheels 

and 

changes 

amount 

of 

torque（V）2. 

consists 

an 

a 

transmission 

a 

clutch 

drive 

shaft 

differential（X）3. 

feature 

manual 

is 

deliver 

enginepower 

front 

rear 

（X）4. 

transmissions 

usually 

have 

five 

speeds 

which 

means 

that 

output 

can 

rotate 

faster 

than 

input

（V）5. 

There 

are 

several 

basic 

components 

in 

suchas 

flywheel 

disk 

pressure 

plate 

release 

bearing 

linkage.

（X）6. 

Automatic 

used 

not 

only 

many 

rear-wheel-dnve 

four-wheel-dnve 

ve- 

lcles, 

but 

In 

most 

front-wheel-dnve 

ones

（V）7.Themostimportantfunctionofthesuspensionsystemlstosupplycomfortable,safendecot-trol

（X）8.Accordingtothearticle,weknowthattherearefivebasictypesofspnngsusedlnsus,eT"

-sions：

coilspring,leafspring,torsionbarspring,traction,barandairspnngn

（X）9.Thedisadvantageofacoilspringlsitscompactness,lackofmovingparts,andexcellentweightsupportingcharacteristics.

（X）10.Accordingtoepassage,leafspringsareoftenusedonthefrontsuspensionoffrontdrivevehtcles

（V）11.Whenthecoilsprings,leafsprings,torsionbarspring,Lairspringslsdefected,thlscoulddcausethecartobounceupanddownwithoutanycontrol

（X）12.Shockabsorbermovementlslimitedbyforcingfluid,dwhichcausestheshockabsorbertocausestheshockabsorbercompressorextendataslowrate.

（V）13.Thesteeringsystemisusuallyusedtocontrolthedirectionofavehicle'

smouon.

（X）14.Whenthedriverturnsthesteeringwheel,thepiniongearturns,causingthelinkagetomo、rs.

（X）15.Wearecompletelysurethatittakesthreecompleterevolutionsofthesteeringwheellomakethewheelsturnfromfarlefttofarrightonmostcars.

（V）16.Recirculating-ballsteeringiswidelyusedonmanytrucksandSUVS,whichprovidesagoodmechanicaladvantageforaheavyvehicle.

（V）17.Thepurposeofsealslstopreventtheentryofdirtorthelossoflubncant

（X）18.Whenthesteeringwheelisturnedtotheleft,theballbearingscirculateitheopposseltryofdirtorthelossoflubncant.theoppositedtrection.

（V）19.Themostimportantfunctionofthesuspensionsystemlstosupplycomfortable,safendecot-trol

（X）20.Accordingtothearticle,weknowthattherearefivebasictypesofspnngsusedlnsus,eT"

coilspring,leafspring,torsionbarspring,traction,barandairspnngn

（X）21.Thedisadvantageofacoilspringlsitscompactness,lackofmovingparts,andexcellentweightsupportingcharacteristics.

（X）22.Accordingtoepassage,leafspringsareoftenusedonthefrontsuspensionoffrontdrivevehtcles

（V）23.Whenthecoilsprings,leafsprings,torsionbarspring,Lairspringslsdefected,thlscoulddcausethecartobounceupanddownwithoutanycontrol

（X）24.Shockabsorbermovementlslimitedbyforcingfluid,dwhichcausestheshock

（V）25.dieselengines,inmanyrespects,workinthesamewayasgasolineengines.

一、判断---------------------------------------（共24题）

二、单选择题------------------------------------（共25题）

二、单选择题（共36题）

1.Whatdoalmostallcarsusetoconvertgasolineintomotion?

D

A.one-strokecombustioncycle

B.two-strokecombustioncycle

C.three-strokecombustioncycle

2.Acarengine’sjobistoB.

A.convertfuelintoheart

B.convertfuelintomotion

C.convertfuelintoexhaust

3.Acarusesafour-strokeengine.ThefourstrokesareA.

A.intake,compression,ignitionandexhaust

B.injection,rotation,ignitionandexhaust

C.injection,carburetion,rotationandexhaust

4.WiththeAatthebottomofthecylinder,theexhaustvalveopenstoallowtheburnedexhaustgastobeexpelledtotheexhaustsystem.

A.pistonB.valveC.camshaft

5.Accordingtothemethodofignitionoftheair-fuelmixture,enginesaredividedintoB.

A.gasengineandsteamengine

B.gasolineengineanddieselengine

C.externalcombustionengineandcompressionignitionengine

6.Whatisthecoreofacar’sengine?

A

A.ThecylinderB.ThesparkplugC.Windshield-washerfluid

7.Whichstatementaboutcylinderheadisfault?

B

A.Thecylinderheadisboltedtoaveryflatsurfaceabovethecylinderportionoftheblock.B.Thecylinderheadiscastintoonepiecefromirononly.

C.Thecylinderheadformstheupperportionofthecombustionchamber.

8.ThecrankshaftandconnectingrodconvertsAenergyintoenergyusedtodrivethevehicle.

A.thermal,mechanicalB.mechanical,thermal

C.kinetic,mechanicalD.mechanical,kinetic

9.Whatcausesacartoburnandloseoil?

C

A.Lackofgas

B.Radiatortrouble

C.Anoldenginewithpistonringsthatnolongersealthecylinderandpistonproperly.

10.Whatistheheartofthelubricationsystem,whichislocatedintheoilpanonthebottomoftheengine?

Anditpullsoilupfromtheoilpanandmakestheengineoilcirculatethroughtheengine.C

A.ScreenedintakeB.oilfilterC.oilpump

11.WhichstatementabouttheLubricationoilisfault?

C

A.Theoilformsafilmonthemetalsurfaceandpreventsametaltometalcontact.

B.Theoilabsorbsandcarriestheheatawayfromtheenginecomponents.

C.Theoilwashesoffdirtawayfromtheenginepartsthroughitschemistry.

12.Whatisthecoolingagentintheliquidcoolingsystem?

A

A.CoolantB.AirC.Lubrication

13.Whatisitapparatusthatcoolsthemotor?

A.RadiatorB.ThermostatC.Coolant

14.Toavoidlossofantifreezeduetoexpansion,thecoolingsystemA.

A.mustnotbecompletelyfilled

B.mustinstallabypassvalve

C.mustinstallapressurecontrolvalve

15.TheprimaryroleofthedistributoristodistributehighvoltagefromtheCtothecorrectcylinder.

A.SparkplugB.pistonC.coil

16.Sparktimingissocriticaltoanengine’sperformancethatmostmoderncarsuseasensortotelltheenginecontrolunit（ECU）B.

A.theexacttemperatureofthesparkplugs.

B.theexactpositionofthepistons.

C.theexactlocationofthecoil.

17.Whenyouturnthekeytoacar,thestartermotorwillC.

A.sendelectricitytothesparkplugs,thenstarttheignitionsystem.

B.sendelectricitytothefuelpump,thenforcethecartostart.

C.spintheengineafewrevolutions,thenstartthecombustionprocess.

18.TheamountofforcetheclutchcanholddependsontheBbetweentheclutchplateandtheflywheel,andhowmuchforcethespringputsonthepressureplate.

A.distanceB.frictionC.relationship

19.Whatisthemostcommonproblemassociatedwithclutches?

B

A.Thefrictionmaterialonthediskmakesawhiningnoise.

B.Thefrictionmaterialonthediskwearsout.

C.Thefrictionmaterialonthedisklaststoolong.

20.AmanualtransmissionisconnectedtotheenginethroughtheC.

A.differentialB.beltC.clutch

21.Alatchmechanismisinsertedintotheslotintheoutputshaftinthemanualtransmission,soastolockthedrivewheelsandkeepthemfromturning,therebypreventingthevehiclefromrolling.Whichgeardoesthestatementindicate?

B

A.ThefifthgearB.TheparkingC.Theneutral

22.HowfastershouldacarwithaCVTreach60mph（97kph）thanthesamecarwiththesameengineandamanualtransmission?

A.10percentB.25percentC.40percent

23.Whichofthefollowingisoneofthejobsofthedifferential?

A.Toallowthewheelstorotateatexactlythesamespeed.

B.Tomaintaintorque.

C.Toaimtheenginepoweratthewheels.

24.ThedriveshaftconnectsA.

A.thetransmissionoutput;

thedifferentialpinionshaft

B.thecylinder;

theclutch

C.thetransmissioninput;

25.Whatarethetwomaintypesofsteeringsystemsthatcarsuse?

A.Recirculating-ballandpower-assisted.

B.Rack-and-pinionandpower-assisted.

C.Recirculating-ballandrack-and-pinion.

26.Whatisthefunctionofabackingplate?

A.Toholdthebrakingsystemtogether.

B.Tocontroltheflowofbrakefluid.

C.Tocontrolthebrakepads.

27.Aisacomputer-controlledbrakesystemthathelpspreventwheellockupduringbraking.

A.ABSB.ITSC.GPS

28.ThethreeprocessinvolvedintheABSworkingprocessareasfollows:

A

A.Pressureincreasescycle,pressuremaintainscycle,pressurereducescycle.

B.Pressuremaintainscycle,pressureincreasescycle,pressurereducescycle.

C.Pressurereducescycle,pressuremaintainscycle,pressureincreasescycle.

29.WhatdoesMSRPstandfor?

A.Manufacturersuggestedrateplan.

B.Manufacturersuggestedretailprice.

C.Manufacturersuggestedrankingplace.

30.WhatdoesAPRstandfor?

A.Annualpercentagerate.

B.Averagepinciplerate.

C.C.Annualprimaryrate.

31.TheCconvertstherotationmotionofthesteeringwheelintothestraight-linemotion.

A.draglinkB.tiero