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1中华人民共和国海事局2006年第2期海船船员适任证书全国统考试题(总第40期)科目:轮机英语试卷代号:805适用对象:无限、近洋航区3000KW及以上船舶二/三管轮(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74题,每题1分,第75题至78题,每题1.5分,第79题至80题,每题10分。一、单项选择题1.______usuallyhelpstoinduceairmovementtoassistcombustion.A.CylindercoverB.MainbearingC.TheexhaustvalveD.Thepistonmovement2.Themechanicalefficiencyofanengineisalwayslessthan100%______lossesoccurringintheformoffriction.A.becauseB.sinceC.duetoD.owing3.Theexhaustportsarelocatedaroundthelowerpartofthecylinderliner,______theproductsofcombustionaredrivenbyscavengingair.A.inwhichB.bywhichC.throughwhichD.fromwhich4.Thethirdengineertookthe______andcheckedthetanktableintheofficeandrecordedallrelevantdata,aswellascalculatedthebunkering.A.waterlevelB.sumplevelC.ballasttanklevelD.ship'strim5.Thelubricatingpipesandductsshouldbeblownoutwith______.A.theatmosphereB.thefreshwaterC.thecompressedairD.thechemicalcompounds6.______neutralizestheacidconditionsand______cleansestheringsandgrooves.A.Thedetergency/thealkalinityB.Thealkalinity/thedetergencyC.Theinhabitant/thewaterD.Theadditives/thedistilledwater7.Iftheenginedoesnotstartonair,itmaybedueto______.A.lowcompressionofthefuelpumpsB.incorrecttimingoffuelpumpsC.thestartingairvalvesstuckD.air-locksinfueloilpipeline8.______deviceisprovidedtopreventstartingairfrombeingadmittedtothecylinderbeforethereversingiscompleted.A.AnautomaticB.AtransmissionC.Aself-regulatingD.Aninterlocking9.Areductioninloadonadieselengineresultsin______ofspeedofthecrankshaft.A.areductionB.anincreaseC.anoutingD.adownwards10.FuelinjectionusesthejetpumpsystemandaWoodwardtypehydraulic______isusedtocontrolenginespeed.A.controllerB.governorC.instrumentD.apparatus11.Theoverspeedingofthedieselenginedrivinganelectricgeneratorcouldcause______.A.lowvoltagetriptotripB.reversepowertriptotripC.damagetowindingsD.excessiveexhausttemperatures12.Anycarbonbuiltuponsurfacesmustbewashedawayby______additivesandheldinsuspensionbya______additive.A.dispersant/detergentB.detergent/dispersantC.dispersant/dispersantD.detergent/detergent13.Whileflowingthroughthevoluteinacentrifugalpump,partofthe______energyoftheliquidisconvertedto______energy.A.kinetic/pressureB.kinetic/essentialC.pressure/kineticD.pressure/height14.Gearpumpsare______becausetheydischargeanearconstantamountofliquidregardlessofpressure.A.negativedisplacementtypeB.turbinetypeC.positivedisplacementtypeD.mixed-flowtype15.Operatingarotarypumpatspeedsinexcessofdesignrequirementscouldcause______.A.decreasedclearancesbetweenrotatingpartsB.decreasedslippagetothesuctionsideofthepumpC.airbindinginthedischargeportsD.erosionandexcessivewear16.Thefirepumpsmustbecapableofdeliveringatotalquantityofwateratadefinedhead,notlessthan______ofthetotalbilgepumpingcapacity.A.one-thirdB.two-thirdsC.one-fourthD.two-fourths17.Thebilgesystemhasbeenperformingwell;however,theaftstarboardengineroombilge-wellsuddenlyfailstobepumpedout.Whichofthefollowingshouldbedonefirsttodeterminethecause?A.Openthebilgepumpforinspection.B.Removeeachofthemanifoldvalves.C.Removeonlythemanifoldvalvetotheaffectedbilge-well.D.Attempttopumpoutanotherbilgewelltodetermineiftheentiresystemisaffected.18.Whichofthefollowingstatementsdescribesoneofthefunctionsoftheballastsystem?A.Topermitfloodingofanyfueloilstoragetankonanyclassofship.B.Touseitasasecondaryservicesystem.C.Tostorereservefeedorpotablewaterforextendedcruises.D.Tostabilizetheshipbyfloodingcertaindesignedtankswithseawater.19.IfanoperatingauxiliaryboilerhasawaterpHreadingof7,youshould______.A.bottomblowtheboilerB.treatthewaterwithcausticsoda2C.treatthewaterwithchemicalscavengersD.reducethewateralkalinitytorecommendedreadings20.Wheretanksarearrangedforeitheroilorballast______mustbefittedinthepipeline.A.achange-overchestB.aheadtankC.aemergencybilgepumpD.anaircooler21.Themostcommoncauseofscaleformationinanauxiliaryboileris______.A.concentrationsofcalciumsulphateintheboilerwaterB.fueloilinthefeedwaterC.impropertreatmentofthefeedwaterwithcalciumsulphateD.excessivefeedwateralkalinity22.The______ofthegravitydiscistoobig.Itcauseoiltoflowthroughthewateroutlet.Wechangedthediscandnooilisfoundinthewateroutlet.A.gravityB.diameterC.circumferenceD.cylinder23.Oilwaterseparatorsareusedtoensurethatshipsdon'tdischargeoilwhen______bilgewater.A.topumpoffB.beingpumpedC.pumpingoutD.itpumpingout24.Ahighrateofseparationbetweenoilandwaterisfavoredby______.A.largesizeofoilglobuleB.lowtemperature25.C.highviscosityD.highflowrate26.Mediumspeedengineshavea______powertoweightratiothantheslowspeedtwostrokes,butduetothehigherspeedstendtohave______maintenanceintervals.A.higher/reducedB.higher/increasedC.lower/reducedD.lower/increased27.OilRecordBookPartIshallbeprovidedtoeveryoiltankerof150tonsgrosstonnageandaboveandeveryshipof400tonsgrosstonnageandabove,______oiltankers,torecordrelevantmachineryspaceoperations.A.aswellasB.aslongasC.ratherthanD.otherthan28.Itisimportantwithallhydraulicsystemstoensurethatinterlockingarrangementsprovidedforpumpormotorcontrolleversarebeforethepumpdrivingmotorcanbestart
本文标题:三管轮轮机英语大证考试真题40期
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