轮机英语 天津八套与海事局八套题库.docVIP

天津八套与海事局八套题库（一） 1.The?officer?in?charge?of?the?engineering?watch?shall?ensure?that?at?all?times?bridge?orders?relating?to?changes?in_____ of?operation?are?immediately?implemented.? A.?fore?and?aft? B.?ahead?or?astern? C.?speed?or?direction? D.?up?or?down? 2.Small?oil?spills?on?deck?can?be?prevented?from?contaminating?any?waters?by_____ .? A. plugging?all?scuppers?and?drains? B.thoroughly?draining?all?bunkering?hoses? C.regularly?emptying?all?drip?pans? D.placing?floating?booms?around?the?ship? 3.The?main?purpose?of?warming?up?the?main?engine?is_____ .? A.?to?reduce?heat?stress? B.?to?reduce?low?temperature?corrosion? C.?to?improve?firing?and?starting?performance? D.?for?fuel?saving? 4.In?order?to?reduce?the?chance?of?detentions?ships?should?routinely?verify?the?following?except?for_____ .? A.fan?damper?operation?is?smooth?and?operates?through?the?full?range?of?open?to?close.? B.fan?damper?locking?pins?are?free?to?be?removed?without?significant?effort.? C.fan?damper?operating?handles?are?free?to?move?without?significant?effort.? D.fan?damper?are?properly?coated?with?white?paint.? 5.The?purpose?of?the_____ in?a?vapour?compression?cycle?is?to?accept?the?hot,?high-pressure?gas?from?the?compressor?and?cool?it?to?remove?first?the?superheat?and?then?the?latent?heat.? A.expansion?valve? B.condenser? C.compressor? D.evaporator? 6.The?energy?consumed?by?an?AC?motor,?as?strictly?reactive?power,?is_____ .? A.used?to?do?mechanical?work? B.lost?in?doing?work?to?turn?the?motor?itself? C.used?to?establish?the?magnetic?field?of?the?motor? D.lost?as?heat?generated?by?the?windings.? 7.A?diesel?engine?will?lose?power?if?fuel?injection?occurs?too?early?because?the_____ .? A.fuel?will?not?be?properly?atomized?in?the?cylinder? B.maximum?fuel?expansion?will?occur?on?the?compression?stroke? C.ignition?will?be?delayed?due?to?low?ignition?temperature? D.fuel?will?ignite?before?top?dead?center? 8.The?designed_____ is?20?tons?per?day,?but?the?fresh?water?generator?can?only?distill?15?tons?at?pr