航海英语6050之--13船舶及其结构

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1、航海英语6050之--13船舶及其结构十三船舶及其结构13.1船舶结构基本知识[3451]______isthemaincenter-linestructuralmember，runningforeandaftalongthebottomofaship，sometimesreferredtoasthebackbone．A.FrameB.DeckbeamC.StringerD.KeelKEY:D[3452]Abandorcollaronthetopendofaboomtowhichthetoppinglift，midshipsguy，andoutboardgu

2、ysaresecured，iscalledthe______.A.collarbandB.guybandC.padeyecollarD.spiderbandKEY:D[3453]Acontinuouswatertightbulkheadisnormallyalsoa(n)______.A.structuralbulkheadB.exteriorbulkheadC.centerlinebulkheadD.joinerbulkheadKEY:A[3454]Aheatedbulkheadhastheeffectonahygroscopiccommodityof__

3、____.A.causingmoisturetoaccumulateagainstthebulkheadB.loweringthevaporpressureofthecommodityC.loweringthedewpointoftheairD.raisingthevaporpressureofthecommodityKEY:D[3455]Alargevesselisequippedwithacontrollablepitchpropeller.WhichstatementisTRUE?______.A.Whendeadinthewater，itisofte

4、ndifficulttofindtheneutralpositionandslightheadwayorsternwaymayresult.B.Whengoingdirectlyfromfullaheadtofullastern，thereiscompletesteeringcontrol.C.Whenthevesselhasheadwayandthepropellerisinneutral，thereisnoeffectonruddercontrol.D.Whenmaneuveringinport，fullaheadorasternpowercanusua

5、llybeobtainedwithoutchangingshaftRPM.KEY:A[3456]Alinerinrivetedconstructionofavesselisa(n)______.A.smallplatewhichfillstheaperturebetweenrivetedstrakesandthevesselframingB.backingplatewhichisusedtolevelthestrakeswhileriveting，andthenremovedC.internalframetowhichthesideshellisrivete

6、dD.seamthatisweldedafterrivetingiscompletedKEY:A[3457]Arecordofthetypesandstrengthsofsteelsusedonashipmustbeincludedinthe______.A.generalplansB.builder'sdocumentationC.CertificateofInspectionD.constructionportfolioKEY:D[3458]Asingle-screwvesselgoingaheadtendstoturnmorerapidlytoport

7、becauseofpropeller______.A.dischargecurrentB.suctioncurrentC.sidewiseforceD.thrustKEY:C[3459]Atwin-screwvesselwithasinglerudderismakingheadway.Theenginesarefullspeedahead.Thereisnowindorcurrent.WhichstatementisFALSE?______.A.Ifonescrewisstopped，theshipwillturntowardthesideofthestop

8、pedscrew.B.Theprincipalfor