《轮机英语题库》PPT课件.ppt

《《轮机英语题库》PPT课件.ppt》由会员分享，可在线阅读，更多相关《《轮机英语题库》PPT课件.ppt（144页珍藏版）》请在三一办公上搜索。

1、轮机工程学院辅机教研室,轮机英语考试强化复习（3000KW及以上船舶二管轮/三管轮）,0601 The space between cylinder liner and jacket is called_.A.the circulating tank B.the scavenge box C.the cooling water space D.the cooler0602 The space between cylinder liner and jacket is called_.A.the cooling water B.the circulating water C.the cooler

2、D.the cooling water space,0603 The starting air in the receiver is supplied by the_.A.air compressor B.refrigeration compressor C.vacuum pump D.purifier0604 The starting air system usually has_ to prevent starting if anything is not in order.A.drain cocks B.vent valves C.counteracts 中和,阻碍D.interlock

3、s,0605 The starting air system usually has_ to prevent starting if anything is not in order.A.stop valves B.interlocks C.non-return valves D.air vents*0606 The starting of a marine diesel engine is generally carried out with the assistance of_.A.compressed air B.electricity C.hydraulic oil D.compres

4、sing air,*0607 The successful operation of any engine or machine and_ depend on effective lubrication.A.their no trouble period B.their freely trouble period C.its free trouble life D.its trouble-free life,0608 The supercharger takes air out of the surrounding atmosphere and then feeds it to the eng

5、ines_.A.inlet valves B.exhaust valves C.emergency valves安全阀 D.run-return valves0609 The term_ refers to one complete sequence of operations required to produce power in an engine.A.diesel engine B.stroke C.cycle D.compression ratio,0610 The term medium speed diesel engine is currently taken to mean

6、an engine with an operating rotational speed of_ rpm.A.below 300 B.above 1200 C.between 300 to 1200 D.below 12000611 The thrust block_ the thrust from the propeller to the hull of the ship.A.conducts B.fits C.transfers D.carries,*0612 The thrust block or thrust bearing,located at the_ of the engine,

7、may be integral with,or separated from,the bed-plate.A.fore end B.aft end C.ahead D.astern end0613 The thrust loading is carried by pads.In some designs the pads extend_ of the distance around the collar.A.one quarter B.a half C.three quarters D.four fifths,0614 The timing for each starting valve mu

8、st be set so that it opens when the piston is_.A.just past the TDC B.stopping C.close to BDC D.on the way upwards*0615 The timing of the injection can be altered by raising or lowering the pump_ in relation to the cam.A.needle valve B.cylinder C.piston D.plunger,0616 The transmission system is made

9、up of shafts,bearings,and finally the_.A.thrust shaft B.propeller C.reduction gear box D.train transmission0617 The turbo-blower comprises a gas turbine and a_.A.condenser B.blower C.soot blower D.air receiver,*0618 The two halves of connecting rod large end bearing are held together by_.A.bridges B

10、.tap bolts螺基,(带头)螺栓 C.jack bolts定位起升,调整螺栓 D.shims,*0619 The two-stroke cycle begins with the piston_,with the air inlet ports or scavenge ports in the sides of the cylinder being opened.A.coming down from the B.D.C B.coming up from the B.D.C C.coming down from the T.D.C D.coming up from the T.D.C,06

11、20 The two-stroke cycle begins with the piston coming up from the bottom of its stroke,with _ in the sides of the cylinder being opened.A.scavenge ports B.inlet valves C.air starting valves D.exhaust valves0621 The two-stroke cycle begins with the piston coming up from the bottom of its stroke,with

12、scavenge ports in the sides of the cylinder being_.A.shut B.closing C.opened D.closed,0622 The two-stroke cycle begins with the piston_,with the air inlet ports or scavenge ports in the sides of the cylinder being opened.A.coming down from the B.D.C B.coming up from the B.D.C C.coming down from the

13、T.D.C D.coming up from the T.D.C,0623 The upper end of the cylinder liner forms a_ of sufficient strength to support it.A.rectangle B.bore C.flange D.coupling,0624 The use of a poor quality piston cooling oil can lead to rapid deterioration of its properties with the resultant formation of deposits

14、in the piston crown which in turn results in a considerable_ in heat transfer.A.advantage B.superior C.increase D.reduction,0625 The vessel is out of harbor and in Full Ahead.We are going to run fuel oil instead of _ and open the fuel oil heater steam valve.A.heavy oil B.lube oil C.fuel oil D.diesel

15、,0626 The viscosity regulator controls_ in order to provide oil at the correct viscosity for combustion.A.the engines speed B.the engines load C.the fuel oil temperature D.the fuel oil flow,0627 The viscosity regulator controls the_ of the fuel oil in order to provide the oil at the correct viscosit

16、y for combustion.A.temperature B.pumping rate C.pressure D.heat0628 The viscosity regulator controls the fuel oil temperature_ provide oil at the correct viscosity for combustion.A.in order that B.because of C.in order to D.owing to,0629 The way to reduce_ is to build up a film of lubricant between

17、any two surfaces that rub against each other.A.friction B.collision C.inertia惯性,惯量D.resistance0630 The withdrawing of the cylinder liners,in general,depends on their_.This may amount to approximately 1/120 of the diameter in some engines.A.correct maneuvering B.wear C.working efficiency D.maintenanc

18、e,0631 The words such as quantity,grade,viscosity and specific gravity should be in the_.A.repair list B.spare parts order list C.price list D.bunker list*0632 The work fuel 做功的燃油量does in each working cycle can be obtained by taking the_.A.precautions B.rpm C.indicator cards D.B and C,0633 The worki

19、ng cycle of a four-stroke diesel engine consists of four events:(1)compression;(2)expansion;(3)exhaust;(4)suction.The correct sequence is_.A.(4)-(2)-(3)-(1)B.(4)-(3)-(1)-(2)C.(4)-(3)-(2)-(1)D.(4)-(1)-(2)-(3),0634 There is_ in any water cooling system for a diesel engine allowing for expansion and wa

20、ter make-up in the system as well as air vent and chemicals addition.A.a setting tank沉淀箱池 B.a service tank C.a head tank D.an expansion joint膨胀节,补偿器,0635 There is_ in any water cooling system for a diesel engine allowing for expansion and water make-up in the system as well as air vent and chemicals

21、 addition.A.an expansion joint B.a service tank C.a head tank D.a setting tank0636 There is a_ system lubricating the running gear and cooling the piston and sometimes lubricating the cylinders.A.recirculating B.total loss C.cooling D.refrigeration,0637 There is an injection pump for each cylinder,w

22、hich is usually operated once every cycle by_ on the camshaft.A.a gear B.a cam C.a rod D.a roller0638 There may be steam coils in a cylinder cooling water system._ during operation of the engine.A.Steam should be cut off B.Steam should pass through the coils C.Electric should supplied to the coils D

23、.The coils should be dismantled,*0639 There should be a lubricating oil_ between the main beatings and the crankshaft.A.film B.cap C.lacquer漆 D.shell0640 These piston rings are so badly worn that they must be_.A.renewed B.welded C.machined D.chromium-plated,0641 They understand the_ of automatic slu

24、dge discharging of the purifier.But they are not good in practice.A.principle B.principal C.cause D.case*0642 This used piston had been tested and approved as a spare part by the_ during last annual repair.A.agent B.shipchandler C.surveyor D.engineer,*0643 Those generally used additives for cooling

25、water are either anti-corrosion oils or inorganic无机_.A.gases B.paints C.inhibitors缓蚀剂 D.detergent0644 To avoid scavenge fires_ the engine timing and equipment maintenance should be correctly carried out.A.occurred B.occurring C.not happening D.occur,0645 To avoid scavenge fires occurring the engine

26、timing and equipment maintenance_.A.should be correctly carried out B.should correctly be taken place C.should carded with care D.must to carry out with great care,*0646 To counteract these undesirable effects cylinder oils usually contain additives formulated to impart a high degree of_ and deterge

27、ncy.A.salinity盐度 B.alkalinity 碱度 C.acid D.sanitary卫生的,*0647 To prevent the build up of high stresses engine must not be run continuously_.A.faster than dead slow speed B.slower than dead slow speed C.with the output of MCR（Maximum Continuous Ratings）D.at critical speeds,*0648 To start the ejection p

28、rocess the oil feed to the centrifuge is first shut off and the oil remaining in the bowl removed by admitting_.A.flashing water B.operating oilC.flushing water驱油水 D.sealing water水封水,0649 Turbocharging of marine diesel engine is achieved by two distinct methods,_ termed the constant pressure and the

29、 pulse system.A.respectable B.respectful C.respective D.respectively0650 Turbocharging system may be designed to operate on either the_ or the constant pressure exhaust system.A.pulse B.exhaust C.fluctuating D.hunting,0651 Two-stroke engine turbocharging is achieved by two distinct methods,_ termed

30、the constant pressure and the pulse system.A.respectable B.respectful C.respective D.respectively*0652 Two-stroke engines invariably have_ to admit air when uncovered by the descending piston.A.inlet ports B.outlet ports C.inlet valves D.exhaust valves,0653 Under maneuvering condition the main engin

31、e may run on_.A.gas oil B.M.D.O(marine diesel oil)C.residue oil D.crude oil原油*0654 Uniflow is the most efficient scavenging system but requires_ an opposed piston arrangement_ an exhaust valve in the cylinder head.A.neither/nor B.both/and C.either/or D.not only/but also,0655 V.I.T.means_.A.variable

32、injection timing B.variable inlet tonnage C.vertical incoming tonnage D.vertical inlet tank0656 Valve gear knocks are more easily located while the engine_.A.is running B.stops C.is repaired D.lacks of oil,0657 Valve overlap is the period during which_.A.the inlet valve is open B.the exhaust valve i

33、s open C.both valves are closed D.both valves are open0658 Vee-type engines have the connecting rods from two cylinders connected to each_ of the crankshaft.A.throw B.web C.main bearing D.deflection,*0659 Vents are led from the engine to_ for the release of air from the cooling water.A.the cooling j

34、ackets B.the head tank C.the cooling water pump D.the scavenging box,0660 Vents are led from the engine to head tank_ from the cooling water.A.for the release of air B.for the release of water C.in order to the release of air D.because the release of air,0661 Vents are led from the engine to the hea

35、d tank for the release of_ from the cooling water.A.air B.heat C.sludge D.steam0662 We call a ship equipped with a diesel engine as main engine_.A.a tug boat拖船 B.a salvage ship 打捞船 C.an oil tanker D.a motor vessel内燃机船,*0663 We can control the speed of the engine by_ the quantity of oil supplied.A.ex

36、changing B.regulating调节（油量和速度）C.adjusting 校准,调整（表）D.differing from0664 We should not start the engine unless the turning gear is_.A.on B.disengaged C.bolted D.unscrewed,*0665 Wear in a cylinder liner is usually due to_.A.friction B.abrasion磨损 C.corrosion D.all of the above*0666 Wear in parts of exha

37、ust valve operation gear will tend to_ the tappet clearance.A.increase B.reduce C.rise D.reduction,0667 Wed better take_ to save fuel consumption,you know it would be useless to get there earlier.A.nominal speed B.economical speed C.rated speed D.slow speed*0668 What is used for measuring the main b

38、earing?A.Pressure gauge B.Dial gauge度盘式指示器 C.Bridge gauge D.Power meter,0669 What is used to purify water and foreign matters from the fuel oil in the following?A.compressor B.separator C.evaporator D.fuel pump0670 When_ is operated,a supply of pilot air enables the remote valve to open.A.the distri

39、butor B.the air start lever C.the turning gear D.the cylinder air start valve,0671 When_ is compressed,its temperature rises so that it ignites the fine spray of fuel injected into the cylinder.A.the oil B.the air C.the fresh water D.the steam0672 When a centrifuge is arranged to separate impurities

40、 and small mount of water from oil,it is known as a_.A.purifier B.separator C.filter D.clarifier,0673 When a crankshaft_ outside the engine,it should be carefully supported in a manner which will avoid imposing high bending moments on it.A.has to be handled B.may be handled C.has being handled D.wil

41、l be handling,*0674 When a crankshaft has to be handled outside the engine,it should be carefully supported in a manner which will_ high bending moments on it.A.avoid imposing B.provide adequate C.avoid to impose D.provide with adequate,0675 When a crankshaft has to be handled outside the engine,it

42、should be carefully supported in a manner which will avoid_ high bending moments on it.A.compressing B.interposing C.imposing D.pounding,*0676 When ships are in port,it is the time when opportunity_ to carry out the routine maintenance and inspection of the working parts of the machinery.A.occurs不及物

43、动词 B.discovers C.looks for D.finds,0677 When the engine speed slows down the governor will_ the engine fuel pump setting.A.increase B.reduce C.keep D.none of the above0678 When the exhaust ports or valves are opened,the_ begin to exhaust.A.carbon and water B.refrigeration steam C.burnt gases D.oil s

44、ludge,0679 When the follower is on the base circle of the cam with a normal shape,the pump plunger is at the_ of its stroke.A.top B.nip C.bottom D.middle0680 When the follower is on the base circle of the cam,the pump plunger is at the_ of its stroke.A.top B.middle C.bottom D.any of the above,*0681

45、When the order_ is received from the bridge,the main air stop valve should be shut.A.stand-by engine B.full ahead C.finished with engine D.ring off engines停车0682 When the order_ is received from the bridge,the main air stop valve in the starting air line should be shut.A.stand-by engine B.full ahead

46、 C.finished with engine D.full away,0683 When the piston is pushed down,it forces the engine to do work on the crankshaft which in turn drives_.A.the ships rudder B.the ships propeller C.the turning gear D.the thrust beating*0684 When the piston reaches the top of its stroke,the temperature of the a

47、ir_ to very high value.A.raises B.rises C.elevates D.arises,0685 When the piston reaches the top of its stroke,_ the pressure_ the temperature of the air rise to very high value.A.either/or B.neither/nor C.both/and D.from/to0686 When the piston reaches the top of its stroke,both the_ and the tempera

48、ture of the air rise to very high value.A.density B.mass C.pressure D.volume,*0687 When the rev/min decreases,the governor weights move_,causing subsequent motions.A.inwards B.outwards C.upwards D.downwards*0688 When the rev/min increases,the governor weights move_,causing subsequent motions.A.inwar

49、ds B.outwards C.forwards D.backwards,*0689 When the starting air valve closes on one cylinder,another starting air valve has_ opened on another cylinder whose piston has just commenced its downward stroke.A.just B.nearly C.merely D.already,*0690 When the water produced from most evaporator is suppli

50、ed for drinking purpose,it must be treated to ensure it is biologically pure and_.A.slightly acidic B.slightly alkaline C.no salty D.slightly bitter,*0691 When to remove scale from the cooling spaces,acid solution_ in the system can be tested from time to time by putting some on to a piece of lime石灰