轮机英语三管轮试题分油机

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1、Lesson171682.EmulsificationofoilwilloccurwhenmixedwithA.airB.blackoilC.waterD.icecream1683.Acentrifugearrangedtoseparatetwoliquidsisknownas•A.anoilywaterseparatorB.apurifierC.acentrifugalcompressorD.aclarifier1684.Acentrifugearrangedtoseparateimpuritiesandsmal

2、lamountsofwaterfromoilisknownas.A.anoilywaterseparatorB・apurifierC・acentrifugalcompressorD.aclarifier1685.Whenaclarifierisrunningtheimpuritiesandwatercollectatthebowl.A.centerB.peripheryC.inletD.upperparts1686.Formanyyearsmarinecentrifugesweredesignedforoperat

3、ion,thatisthemachineswererunforaperiodduringwhichsolidsaccumulatedinthebowl.Themachinewasstoppedwhentheaccumulatedsolidsbegantoimpairitsperformance・A.purifyingB.batchC.longperiodD.temporary1687.Forapurifier,changingtoagravitydiscwithlargerholediameterwillmovet

4、heinterfacetowardsthe・A.bowlperipheryB.bowlcenterC.uppersurfaceD.lowersurface1688.Forapurifierchangingtoagravitydiscwithsmallerholediameterwillmovetheinterfacetowardsthe•A.bowlperipheryB.bowlcenterC.uppersurfaceD.lowersurface1689.Theofthegravitydiscistoobig.It

5、causeoiltoflowthroughthewateroutlet.Wechangedthediscandnooilisfoundinthewateroutlet.A.gravityB.diameterC.circumferenceD.cylinder1690.Dirtyoilmustbebeforebeingusedagain•A.mixedwithcleanoilB.purifiedC.heatedD.strained1691.Whichofthefollowinginfluencestheposition

6、oftheinterfacebetweentheliquidsealandtheoilinapurifier?A.HeightofthemachineB・TemperatureoftheliquidsealC.GravitydiscD.Bowldiameter1692.ForaL.O.purifier,ifthebackpressureoftheoiloutletistoohigh,theinterfacebetweenoilandwaterinthebowlwill・A.beinterruptedB.movedo

7、wnwardsC.moveoutwardsD.retainoriginalposition1693.Wheninoperation,itisunavoidablethatasmallamountofoilthroughleakage,andinordertocompensatefortheseleaksthesystemisconnectedtoafeedpump.A.escapesB.overheatsC.expandsD.accelerates1682.Coalescenceisthebreakdownofsu

8、rfacetensionbetweenoildropletsinanoil/watermixture,whichcausesthemtojoinandinsize.A.expandB.extractC・increaseD.decrease1683.Whenacentrifugeisarrangedtoseparateimpuritiesandsmallamo