第38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2005年第3期海船船员适任证书全国统考试题（总第38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：I・Bedplatesaretheoftheengine,withoutthesupportofwhichtheshaf

2、talignmentinparticular,andenginestructureasawhole,wouldinevitablybelost.A.hullB

3、D.Exhaustandcompression.3・WhichofthefollowingmayleadtotheengineNOTtostartonair?A・startingairpressuretoohigh・B.correcttimingofstartingairvalves・C.threeofthesixstartingvalvesstuck..D.theturninggeardisengaged・4.Thelowesttemperaturerequiredtocauseself-sustainedcombustionofa

4、substanceindependentofanyoutsidesourceofignitioniscalled・A・explosiverangeB.flashpointC.ignitiontemperatureD.combustiontemperature5.Thefunctionofalubricatingoilistolubricatetherunningsurfacetocarryawayagreatdealofheat.A.not/butBeneither/norC.either/orD.notonly/butalso6.T

5、hedegreetowhichtheviscosityofanoilwillchangewithachangeintemperatureisindicatedbythe.A.weightdesignationB.viscosityindexC.pourpointD.thermalchangevalue7.Allthreesystemshavetheportstoswirltheincomingairanddirectitintheappropriatepath.A.angledB.roundedC.beingangledD

6、rounded8・Scavenginginafour-stroke/cycledieselengineoccursduringthe・A

7、leastoneofthecylinderswithitsstartingairvalveopentoadmitcompressedairtostarttheengine.A・BecauseB.OwingtoC.ForD.Nomatter10.Theprocesstoremoveexhaustgasesbyblowinginfreshairiscalled・A.chargingB.superchargingC・startingD.scavengingII・Somevesselsareequippedwithawaterlubricat

8、edstemtube・Whenatsea,operatingundernormalconditions,thewaterservicevalvefromtheship'ssaltwatersystemtothebeari