Lesson 4Fuel Oil SystemWord文档格式.docx
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Lesson 4Fuel Oil SystemWord文档格式.docx
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4@()orairventingarrangementisfittedtothefuelsupplypassage.
A.Anairpump
B.Acompressor
C.Afuelpump
D.Apriming
D
供油管路装有灌注或放气装置,(燃油供应管道中装备有放气设备)。
5@()controlsthefueloiltemperatureinordertoprovideoilatthecorrectviscosityfor
combustion.
A.Theviscosityregulator
B.Thetemperaturecontroller
C.Theflowmeter
D.Thepressureswitch
粘度调节器通过控制燃油的温度来实现粘度的控制。
6@()shouldbetakenout,cleaned,andliftingcheckedeveryfourtosixmonths.
A.Pistons
B.Fuelinjectionvalves
C.Crankshaft
D.Cylindercovers
喷油器(油头)应每4—6个月取出、清洁并进行启阀压力试验。
7@A()onthedeliverysideofthepumpclosestostopfueloilreturningfromtheinjector;
A.returnvalve
B.non-returnvalve
C.safetyunit
D.stopvalve
喷油泵排出侧的止回阀(单向阀)阻止了燃油从喷油器回流。
8@A()ensuresaconstantpressureatthefuelmain.
A.transferpump
B.controlairbottle
C.pressureregulatingvalve
D.non-returningvalve
压力调节阀确保燃油总管中的压力稳定。
9@Acommontroublewiththefuelpumpplungerorfuelvalvespindleis
A.waterleakage
B.steamleakage
C.oilleakage
D.airleakage
喷油泵柱塞或喷油油针阀常见的故障是漏油。
10@Acommontroublewiththefuelpumpplungersorfuelvalvespindleis().
A.brokendown
B.stuck
D.carbonized
喷油泵柱塞或喷油针阀常见的故障是漏油。
11@Agovernorautomaticallycontrolsenginespeedbyregulating().
A.fuelsupply
B.firingorder
C.engineload
D.oillevel
调速器通过调节燃油的供应来自动地控制发动机的转速。
12@Aslow-speedtwo-strokedieselisusuallyarrangedtooperatecontinuouslyonheavyfueloil
andhasavailablea()supplyformanoeuvringconditions.
A.lubricatingoil
B.dieseloil
C.residualoil
D.hydraulicoil
低速二冲程柴油机能依靠重油连续运行,同时在机动操纵状态下能使用轻柴油。
013@Beforebeingusedthefuelservicetankshouldbedrainedof()
A.sodasolution
B.mechanicalimpurities
C.ballast
D.waterandresiduals
注:
燃油日用柜使用前应放残,故选D。
14@Astheplungermovesup,theportsareclosedandthefuel()anddeliveredtotheinjectornozzleatveryhighpressure.
A.beingcompressed
B.tobepumpedup
C.ispressurized
D.arebuiltup
随着柱塞上行,进油口被关闭,燃油被加压,并以很高的压力供到喷油嘴。
15@Careandcleanlinessarerequiredwheninstallingdieselfuelfilters().
A.topreventthefuelsystemfrombecomingair-hound
B.topreventthefuelsystembecomingcloggedwithdirtyparticles
C.bothAandB
D.topreventthelubricatingoilfromleakingoutofthefilterelement
安装燃油滤器时,要采取措施以避免空气大量进入燃油系统,同时要保持清洁,以免燃油系统被污垢颗粒堵塞。
16@Dirtinthefueloilsystemofadieselenginecancause().
A.cloggedfilters
B.poorcombustion
C.overloadingofthediesel
D.shockoffuellines
柴油机燃油系统中的脏物会引起滤器堵塞。
17@Enginefuelpumpindexis().
A.theviscosityindex
B.thefueloilcontents
C.thestartingspeed
D.thereadingattherack
发动机燃油泵的刻度指的是燃油齿条的读数。
18@Failureoffuelinjectionisusuallyduetotroubleinthe().
A.exhaustvalves
B.mechanicallubricators
C.coolingwaterpumps
D.fuelinjectionpumps
燃油喷射的故障往往是燃油喷射泵的故障,故选D。
19@Fuelisdeliveredintothecombustionspaceby().
A.acoolingsystem
B.alubricatingsystem
C.anelectricsystem
D.aninjectionsystem
燃油通过燃油喷射系统供应到燃烧室,故选D。
20@Fuelisnotsuppliedtothecorrespondingcylinderduetoafailureof()
A.themotor
B.thefreshwatergenerator
C.thegovernor
D.thefuelpump
由于喷油泵发生了故障,燃油不能供应到相应的气缸,故选D。
21@Fuelisnotsuppliedtothecorrespondingcylindersdueto
A.afailureofthemotor
B.Afailureoflubricator
C.afailureofcylinder
D.afailureoffuelpump
由于喷油泵发生了故障,燃油不能供应到相应的气缸。
22@Inatypicalfueloilsystem,theoilisstoredintanksinthedoublebottomfromwhichitispumpedto()andheated.
A.aservicetank
B.acollectingtank
C.asump
D.asettlingtank
在典型的燃油系统中,燃油储存在双层底油舱中,然后被驳运到沉淀柜并加热
23@Inatypicalfuelsystem,theoilisstoredin()inthedoublebottom.
A.settingtanks
B.servicetanks
C.tanks
D.draintanks
在一个典型的燃油系统中,燃油储存在双层底油舱中。
24@Inordertoensureperfectatomization,thefueloil()beforeinjection.
A.hastobecooled
B.hasheated
C.haspreheated
D.hastobepreheated
为了确保良好的雾化,燃油喷射前必须经过预热,故选D。
25@Increasingthetemperatureofafuelwillreduceits().
A.viscosity
B.pressure
C.resistance
D.settingpoint
提高燃油的温度将会减小其粘度
26@Onadieselengine,fuelisdeliveredintothecombustionspaceby().
A.acoolingsystem
B.alubricationoilsystem
C.anelectricsystem
柴油机中,燃油通过喷射系统供应到燃烧室。
27@Strainersandfinefiltersshouldbecleanedatintervals,()preventdirtfromgettingunderafuelinjectionpumpvalve.
A.inorderthat
B.soasto
C.sothat
D.inadditionto
粗细滤器应该定期清洁,以防止脏物积聚在喷油泵下面,故选Ba
28@The()isnotproperlysetthuscausingeitheradvancedorretardedfiring.
A.piston
B.fuelinjectionpump
C.crankshaft
D.oilcan
燃油喷射泵没有正确设定,引起发火提前或滞后。
29@The()ofthedieseloilmustnotexceed120degreeFahrenheit.
A.temperature
C.acidvalue
D.viscosity
柴油的温度不得超过1200F
30@The()orbalancetankcollectsthere-circulatedfueloil.
A.buffer
B.sump
C.bilge
D.overflowing
燃油系统中,缓冲柜或平衡柜(集油柜)用来收集再循环的燃油
31@The()intheinjectorwillliftatapre-setpressurewhichensuresthatthefuelwillatomizeonceitentersthecylinder.
A.needlevalve
B.nozzles
C.piston
D.spring
燃油喷油器的针阀将在预先设定的压力下开启,该压力能确保一旦燃油进入气缸,能雾化
32@Thefuelinjectorpumpisoperatedby()whichdrivestheplungerupanddown.
A.aseparatemotor
B.acam
C.agenerator
D.achain
燃油喷射泵由凸轮来驱动,凸轮驱动柱塞上下运动,故选B。
33@Thefuelissuppliedtothepumpthroughportsoropeningsinthe()orcylinderofthepump.
A.bottle
B.injector
D.barrel
燃油通过套筒上的油孔供应到喷射泵,故选Dbarrel套筒。
34@Thefueloilsystemforadieselenginecanbeconsideredintwoparts-thefuelsupply
andthe()systems.
A.fueltreatment
B.fuelcombustion
C.fuelinjection
D.fuelseparating
柴油机的燃油系统由两部分组成,即燃油供应系统和燃油喷射系统。
35@Thefuelpipesand'
ductsshouldbeblownwith().
A.atmosphere
B.thefreshwater
C.compressedair
D.chemicalcompounds
燃油管系应用压缩空气吹洗,故选C。
36@Theheartofthedieselengineisthe()wherethefuelisburntandthepowerdeveloped.
A.crankcase
B.cylinder
C.scavengebox
D.piston
柴油机的心脏是气缸,在那里燃、抽燃烧并发出功率。
37@Thehighpressureinfuelinjectionsystemofthedieselengineisproducedbythe().
A.injectorpump
B.fuelinjector
C.governor
D.turbocharger
柴油机燃油喷射系统中的高压是由燃油喷射泵产生的,故选A。
38@Theignitionofthefuelindieselengineiscausedbythe()ofcompressionoftheair
previouslyadmittedintothecylinders.
A.vacuumpressure
B.specificgravity
C.heat
柴油机机中,燃油的发火是由先前进入到气缸的空气的压缩热量引起的(压燃式)
39@Themostcommoncauseofloweringthecrankcaselubeoilflashpointis()
A.morewatercontents
B.contaminationwithfueloil
C.highertemperature
D.sufficientcoolingofoilmist
使得曲柄箱油闪点降低的常见原因是混入燃油
40@Theneedlevalveinafuelvalvewill()whenthefuelpressureactionontheneedlevalvetaperedfaceexertsaforcelowerthanthatofthespringcompression.
A.bejammed
B.beopened
C.beseated
D.bebroken
当作用在针阀锥形面上的燃油压力小于掸簧力时,油头的针阀将关闭
41@Theneedlevalveintheinjector()atapre-setpressurewhichensuresthatthefuelwillatomizeonceitentersthecylinder.
A.willlift
B.willbelifted
C.willclose
D.willbeclosed
油头的针阀将在预先设定的压力下开启,该压力能确保一旦燃油进入气缸便能雾化。
42@Theoilwaspumpedupinthesettletanksuchaheight()
A.spilled
B.overflowed
C.sprayed
D.injected
沉淀油柜的油被泵得太高了,以致溢出。
spill是溢油,spray是喷洒,inject是喷射,只有overflow是满了溢出,故选B。
43@Theoperationbetweentwofuelinjectionsiscalleda()
A.timingcycle
B.workingcycle
C.workinghour
D.workingstroke
两次燃油喷射之间的工作过程被称作一个工作循环,故选B
44@Theoperationbetweentwofuelinjectionsiscalledaworkingcycle,whichconsistsofafixedsequenceofevents.Whatdoes"
which"
meaninthissentence?
A.aworkingcycle
B.B.theoperation
C.C.twofuelinjections
D.D.events
两次燃油喷射之间的工作过程被称作一个工作循环,该工作循环由一固定的动作顺序组成。
定语从句的引导词“which”,指的是“aworkingcycle”,故选A
45@Thepumphasaconstantstrokeandtheamountoffueldeliveredisregulatedbyrotating()whichhasaspeciallyarrangedhelicalgroovecutintoit.
A.thepumpcylinder
B.thepumpcam
C.thepumpplunger
D.thepumproller
喷油泵具有恒定的行程,输送的燃油量通过油泵柱塞的回转来调节。
46@Thesequenceoffuelinjectionintocylindersisdeterminedby().
A.thesteering
B.thedrivengear
C.theturninggear
D.thetiminggear
燃油喷射到气缸呈的顺序由定时齿轮决定,故选D。
47@Thetimingoftheinjectioncanbealteredbyraisingorloweringthepump()inrelation
tothecam.
D.plunger
喷油定时可以通过改变柱塞和凸轮之间的相对位置来改变,故选D。
48@Theviscosityregulatorcontrolsthefueloiltemperature
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