大管轮轮机英语综合(33-48期)

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1、中华人民共和国海事局2004年第1期海船船员适任证书全国统考试题（总第33期）科目：轮机英语试卷代号：803适用对彖：无限、近洋航区3000KW及以上船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。第1题至68题，每题1分，第69题至76题，每题1.5分，第77题至78题，每题10分。一、单项选择题：1.Theexhaustvalveisopenedataboutthesametimetheairinletpo

2、rtsareopened.A.beforeB.afterC.whenD.until2.Cylinderwalltemperature,fueloilsulphur,andoilpassage・A.areinterdependentB.arenotinterdependentC.havenothingtodowitheachotherD.areindependent3.Acidsolutioninthesystemcanbetestedfromtimetotimebyputtingsomeontoapieceoflime.A

3、.strengthB.denseC.percentageD.velocity4.Machinerydrivingfueloiltransferandfueloilservicepumpsmustbefittedwitharemotemeansofstoppingthemachineryfrom.A.withinthespaceconcernedB.outsidethespaceconcernedC.thethrottlestationD.withinthefireroom5.Cylinderoilisahighviscos

4、itymineraloil,withamachinedtotheanticipatedsulfurcontentofthefuel.A.TANB.TBNC.SAND.SBN6.Thetendencyforlubricatingoiltothinoutathightemperaturesandthickenatlowtemperatureswillbecharacterizedbya.A>lowviscosityindexB>highviscosityindexC.highneutralizationnumberD・lowd

5、emulsibilityquality7-Whenconsideringthelowestfuelsystemoperatingtemperature,areimportant.A.specificgravityorrelativedensityopenflashpointandclosedflashpointvaluesC.highercalorificandlowercalorificvaluesD.cloudpointandpourpointvalues8・Intheincomingairisdirectedupwa

6、rds,pushingtheexhaustgasesbeforeitandthentheexhaustgasestraveldown.Asupercharging9.isusuallydrivenbytheenginecamshaftandsuppliespilotairtothecylinderairstartvalve.A.AnairreceiverB・AnoperatingvalveC.Anautomaticva

7、lveD.Anairdistributor10.Whichofthefollowingconditionscancauseabovenormalairtemperaturetodevelopintheintakemanifoldofafour-stroke/cycle,turbo-charged,dieselengine?A.Cloggedairintakefilters.B・Pistonblow-by.C.Adefectiveafter-cooler.D・Faultyexhaustvalves.9.Misalignmen

8、tofanenginecrankshaftcanbedetectedbymeasuringofcrankwebsforeachunitoftheengine・A.diametersB.lengthsC.deflectionsD.noneoftheabove10.Acrankshaftwhosecente