轮机英语三管轮试题 造水机

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1、轮机英语Lesson191735._____istheproductionofpurewaterfromseawaterbyevaporationandre-condensing.A.EvaporationB.CirculationC.CondensationD.Distillation1736.Whenavacuumboilingevaporatorworks,thehotjacketwaterwillpassoverthetubestackand_____theseawaterpassingthroughthetubes.

2、A.disposeB.dissolveC.heatD.dissipates1737.Withavacuumboilingevaporator,theremainderofseawaterfedtotheevaporatorispumpedoutby_____.A.abrinepumpB.anairejectorC.afeedpumpD.distillatepump1738.Inavacuumboilingevaporator,thefreshwatergeneratedispumpedoutby_____.A.abrinepu

3、mpB.anairejectorC.afeedwaterpumpD.acondensatepump1739.Whendistillingseawaterthecoolingwaterdischargingfromthedistillerisfedbacktoevaporatorasfeedwater_____.A.todecreasescaleformationB.forbettercoolingeffectC.formoreeconomicalpurposeD.toraisevacuum1740.Whendistilling

4、saltwaterthecoolingwaterdischargingfromthedistillerisfedbacktoevaporatorasfeedwater_____.A.tocutdowntheamountofcoolingwaterneededB.topreventanexcessamountofcoolingwaterfrombeingdischargedtothebilgesC.tosupplyhotwatertotheevaporatorformoreeconomicaloperationD.Noneoft

5、heaboveistree.1741.Theprocessduringwhichliquidcontainingareasonableamountofsensibleheatataparticularpressureimmediatelychangesintosteamafteradmittedtoachamberatalowerpressureiscalled_____.A.boilingoffB.flashevaporationC.condensationD.noneoftheabove1742.Intheprocesso

6、f_____,liquidchangesintogas.A.evaporationB.frostingC.condensingD.compressing1743.WhichofthefollowingisNOTonthelistitemstoberecordedinOilRecordBookPartI(machineryspaceoperation)?A.Accidentaldischargeofoil.B.Disposalofoilresidues.C.QuantityofwaterproducedbyF.W.G.D.Dis

7、chargeofdirtyballastorcleaningwaterfromfueloiltanks.1744.Whenthewaterproducedfrommostevaporatorissuppliedfordrinking轮机英语purpose,itmustbetreatedtoensureitisbiologicallypureand_____.A.slightlyacidicB.slightlyalkalineC.nosaltyD.slightlybitter1745._____providestheheador

8、pressuretosupplythedomesticwaterwhererequired.A.ThecompressedairB.ThecompressingairC.ThetransferpumpD.Theheadtank1746._____isusedforwashin