汽车理论第一篇 基础知识8章 机动车专业英语Word下载.docx
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汽车理论第一篇 基础知识8章 机动车专业英语Word下载.docx
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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
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