[其它考试]《轮机英语》最新题库.doc
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1、轮机英语老题库1. “Before disconnecting the oil pipe, would you flush the oil retained in the pipe _?” asked the oil barge owner.A. by using of fresh waterB. with compressed airC. by using of sea waterD. with chemical compound2. “Stand by an engine” means _.A. “prepare to stop the engine”B. “assemble an eng
2、ine on its bedplate”C. “make an engine ready for starting”D. “dismantle an engine”3. A _ is the foundation of the engine, without the support of which the shaft alignment in particular, and engine structure as a whole, would inevitably be lost.A. frameB. bedplateC. cylinderD. liner4. _ are commonly
3、used in mechanical-hydraulic governor to sense engine speeds.A. DoorsB. BulksC. FlyweightsD. Flywheels5. _ are generally formed in the frame of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end bearing.A. DoorsB. Aspirate gauzerC. Couplin
4、gD. Blind6. _ arrangements have low temperature air and high temperature exhaust gas passing through adjacent ports, causing temperature differential problems for the liner material.A. Loop scavengeB. Gross scavengeC. Uniflow scavengeD. Supercharge7. _ became oval, it should be machined.A. The upper
5、 half of cross-head bearingB. The cross-head pinC. The cross-head bearingD. The cross-head guide plate8. _ device is provided to prevent starting air from being admitted to the cylinder before the reversing is completed.A. An automaticB. A transmissionC. A self-regulatingD. An interlocking9. _ fuel
6、oils _lubricating oils require treatment before passing to the engine.A. Both / andB. Neither / norC. Either / orD. Both / or10. _ is sometimes used for piston cooling since leaks into the crankcase would not cause problems.A. Diesel oilB. Hydraulic oilC. Lube oilD. Mineral oil11. _ is the removal o
7、f exhaust gases by blowing in fresh air.A. Gas exchangeB. ChargingC. ScavengingD. Supercharging12. _ is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.A. The fuel oilB. The lube oilC.
8、The sea waterD. The fresh water13. _ may be the first possible cause which makes the engine to lose power or slow down when it is running.A. Hot bearingB. Starting valvesC. Unequal distribution of loadD. Excessive crankshaft clearance14. _ of an engine crankshaft can be detected by measuring deflect
9、ions of crank webs for each unit of the engine.A. MisalignmentB. LengthC. StrengthD. Stresses15. _ of the A-frames there is a strong cast iron frame called the scavenging air box.A. At the topB. At the bottomC. In the topD. In the bottom16. _ pistons have low inertia and high coefficient of thermal
10、expansion.A. Cast ironB. Cast steelC. Forged steelD. Aluminum17. _ scavenging means both exhaust ports and scavenging ports are arranged to the same side.A. UniflowB. CrossC. LoopD. Straight18. _ should not undertake any task which will interfere with the supervision duties relating to the main mach
11、inery and associated equipment.A. The watch keeping personnelB. The chief engineerC. The person on a bunker bargeD. Any of the above19. _ tappet clearance will cause the exhaust valve to open early and close late in cycle and will increase its maximum lift.A. ExcessiveB. InsufficientC. CorrectD. Non
12、e of the above20. _ tappet clearance will cause the exhaust valve to open late and close early in cycle and will reduce its maximum lift.A. CorrectB. InsufficientC. ExcessiveD. None of the above21. _ tappet clearance will cause the exhaust valve to open late and close early in cycle and will reduce
13、its maximum lift.A. CorrectB. InsufficientC. ExcessiveD. None of the above is correct.22. _ the cylinder will contain a great weight of air and will be capable of burning a great quantity of fuel.A. At the beginning of the compression strokeB. At the beginning of the suction strokeC. At the end of t
14、he working strokeD. At the end of the exhaust stroke23. _ the supercharge pressure is, _power an engine develops.A. The higher / the moreB. Higher / moreC. Higher / littleD. The higher / the less24. _ device is provided to prevent starting air from being admitted to the cylinders before reversing is
15、 completed.A. An automaticB. A transmissionC. An interlockingD. A self-regulation25. _ is not properly set thus causing either advanced or retarded firing.A. A pistonB. A fuel injection pumpC. A feed water pumpD. A lube oil pump26. _ means that both exhaust ports and scavenging ports are arranged on
16、 the same side.A. Uniflow scavengeB. Cross scavengeC. Loop scavengeD. Straight scavenge27. _ rods are not in proper condition so that too much fuel is supplied to the corresponding cylinder.A. PistonB. SoundingC. RegulatingD. Connecting28. _ shows 1.2 meter and the specific gravity of the oil is 0.9
17、6. According to the measuring scale, that makes 150 tons.A. The piston rodB. The push rodC. The sounding rodD. The connecting rod29. _ allows for expansion and water make up in the water cooling system.A. A top tankB. A head tankC. A head valveD. A drain tank30. _ at the end of the distribution pipe
18、 ensures that adequate pressure is maintained by the pump.A. A relief valveB. An alarmC. A pressure gaugeD. A non-return valve31. _ is used for washing and drinking.A. The ballast systemB. The salt water systemC. The bilge systemD. The domestic system32. _ provide the water to the pistons.A. Pneumat
19、ic piesB. Hydraulic pipesC. Telescopic pipesD. Operating gas pipes33. _ are fitted in the exhaust system and facilitate charge removal and scavenging in each cylinder.A. DiffusersB. CompressorsC. Steam boilersD. Soot blowers34. _ are formed by abrasive particles entering the bearing and scoring the
20、shaft.A. GroovesB. RecessesC. RidgesD. Nips35. _ are mounted on and bolted to the bed-plate cross girders.A. The crankshaftB. The crankcaseC. The guide-waysD. The frames36. _ is a precaution which contributes to avoiding trouble under operating conditions.A. Constant inspectionB. Keeping constant lo
21、adC. Remaining constant temperatureD. Varying speed37. _ is a source of power by which the diesel engine may operate.A. Water energyB. Electrical energyC. Chemical energyD. Heat energy38. _ is arranged for cleaning the lubricating oil in the system and clean oil can be provided from a storage tank.A
22、. A filterB. A centrifugeC. A distillerD. A generator39. _ is fully floating in both connecting rod small end and the piston skirt.A. The piston rodB. The cross head pinC. The gudgeon pinD. The crank-pin40. _ is made of a boss with separated blades mounted into it.A. A variable pitch propellerB. A v
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