轮机英语三管轮试题造水机

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1、Lessonl91735.istheproductionofpurewaterfromseawaterbyevaporationandre-condensing.A.EvaporationC.CondensationB.CirculationD.Distillation1736.Whenavacuumboilingevaporatorworks,thehotjacketwaterwillpassoverthetubestackandtheseawaterpassingthroughthetubes.A.disposeB.dissolveC.heatD.dissipates1737.Wi

2、thavacuumboilingevaporator,theremainderofseawaterfedtotheevaporatorispumpedoutby.A・abrinepumpB.anairejectorC・afeedpumpD.distillatepump1738.Inavacuumboilingevaporator,thefreshwatergeneratedispumpedoutby•A.abrinepumpB・anairejectorC.afeedwaterpumpD.acondensatepump1739.Whendistillingseawaterthecooli

3、ngwaterdischargingfromthedistillerisfedbacktoevaporatorasfeedwater.A.todecreasescaleformationB.forbettercoolingeffectC.formoreeconomicalpurposeD.toraisevacuum1740.Whendistillingsaltwaterthecoolingwaterdischargingfromthedistillerisfedbacktoevaporatorasfeedwater.A.tocutdowntheamountofcoolingwatern

4、eededB.topreventanexcessamountofcoolingwaterfrombeingdischargedtothebilgesC.tosupplyhotwatertotheevaporatorformoreeconomicaloperationD.Noneoftheaboveistree.1741.Theprocessduringwhichliquidcontainingareasonableamountofsensibleheatataparticularpressureimmediatelychangesintosteamafteradmittedtoacha

5、mberatalowerpressureiscalled•A.boilingoffB.flashevaporationC.condensationD.noneoftheabove1742.Intheprocessof,liquidchangesintogas.A.evaporationB.frostingC.condensingD.compressing1743.WhichofthefollowingisNOTonthelistitemstoberecordedinOilRecordBookPartI(machineryspaceoperation)?A.Accidentaldisch

6、argeofoil.B.Disposalofoilresidues.C.QuantityofwaterproducedbyF.W.G.D・Dischargeofdirtyballastorcleaningwaterfromfueloiltanks.1744.Whenthewaterproducedfrommostevaporatorissuppliedfordrinkingpurpose,itmustbetreatedtoensureitisbiologicallypureand.A・slightlyacidicB.slightlyalkalineC.nosaltyD.slightly

7、bitter1735.providestheheadorpressuretosupplythedomesticwaterwhererequired.A.ThecompressedairB.ThecompressingairC.ThetransferpumpD.Theheadtank1736.isusedforwashinganddrinking.A.TheballastsystemB.ThesaltwatersystemC・Thebilgesy