第40期海船船员适任考试《轮机英语》试题

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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适用对彖：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・Mainbeari

2、ngC.TheexhaustvalveD.Thepistonmovement2.Themechanicalefficiencyofanengineisalwayslessthan100%lossesoccurringintheformoffriction.A.becauseB.sinceC.duetoD・owing3・Theexhaustportsarelocatedaroundthelowerpartofthecylinderliner,theproductsofcombustionaredrivenbyscavengingair.A.inwhichB・bywhic

3、hC.throughwhichD>fromwhich4.Thethirdengineertooktheandcheckedthetanktableintheofficeandrecordedallrelevantdata,aswellascalculatedthebunkering.A.waterlevelB.sumplevelC.ballasttanklevelD.ship'strim5.Thelubricatingpipesandductsshouldbeblownoutwith・A.theatmosphereB.thefreshwaterC.thecompres

4、sedairD.thechemicalcompounds6・neutralizestheacidconditionsandcleansestheringsandgrooves・A.Thedetergency/thealkalinityB.Thealkalinity/thedetergencyC.Theinhabitant/thewaterD.Theadditives/thedistilledwater7.Iftheenginedoesnotstartonair,itmaybedueto・A・lowcompressionofthefuelpumpsBeincorrect

5、timingoffuelpumpsC.thestartingairvalvesstuckD.air-locksinfueloilpipeline8.deviceisprovidedtopreventstartingairfrombeingadmittedtothecylinderbeforethereversingiscompleted.A・AnautomaticB>AtransmissionC.Aself-regulatingD.Aninterlocking9.Areductioninloadonadieselengineresultsinofspeedofthec

6、rankshaft・A.areductionB.anincreaseC.anoutingD.adownwards10・FuelinjectionusesthejetpumpsystemandaWoodwardtypehydraulicisusedtocontrolenginespeed・A.controllerB.governorC.instrumentD.apparatusTheoverspeedingofthedieselenginedrivinganelectricgeneratorcouldcause.A

7、sepowertriptotripC.damagetowindingsD・excessiveexhausttemperaturesAnycarbonbuiltuponsurfacesmustbewashedawaybyadditivesandheldinsuspensionbyaadditive・A.dispersant/detergentB.detergent/dispersantC.dispersant/dispersantD.detergent/detergentWhileflowingthroughthevoluteinacentrifuga