2015輪機英語試題二三管輪

1、輪機英語考試復(fù)習(xí)題(二、三管輪)第一章 船舶動力裝置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 water B with compressed air C by using of sea water D with chemical compound 2. “Stand by an engine” means _.A “prepare to stop the engine” B

2、“assemble an engine 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 Frame B Bedplate C Cylinder D Liner 4

3、. _ are commonly used in mechanical-hydraulic governor to sense engine speeds.A Bulbs B Bulks C Flyweights D Flywheels 5. _ 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 Doors B Aspirate

4、gauzer C Coupling D Blind 6. _ device is provided to prevent starting air from being admitted to the cylinder before the reversing is completed.A An automatic B A transmission C A self-regulating D An interlocking 7. _ fuel oils _ lubricating oils require treatment before passing to the engine.A Bot

5、h/and B Neither/nor C Either/or D Both/or 8. _ is sometimes used for piston cooling since leaks into the crankcase would not cause problems.A Diesel oil B Hydraulic oil C Lube oil D Mineral oil 9. _ is the removal of exhaust gases by blowing in fresh air.A Gas exchange B Charging C Scavenging D Supe

6、rcharging 10. _ 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 oil B The lube oil C The sea water D The fresh water 11. _ may be the first possible cause which makes the

7、engine to lose power or slow down when it is running.A Hot bearing B Starting valves C Unequal distribution of load D Excessive crankshaft clearance 12. _ of an engine crankshaft can be detected by measuring deflections of crank webs for each unit of the engine.A Misalignment B Length C Strength D S

8、tresses 13. _ of the A-frames there is a strong cast iron frame called the scavenging air box.A At the top B At the bottom C In the top D In the bottom 14. _ pistons have low inertia and high coefficient of thermal expansion.A Cast iron B Cast steel C Forged steel D Aluminum 15. _ should not underta

9、ke any task which will interfere with the supervision duties relating to the main machinery and associated equipment.A The watch keeping personnel B The chief engineer C The person on a bunker barge D Any of the above 16. _ the cylinder will contain a great weight of air and will be capable of burni

10、ng a great quantity of fuel.A At the beginning of the compression stroke B At the beginning of the suction stroke C At the end of the working stroke D At the end of the exhaust stroke 17. _ the supercharge pressure is, _ power an engine develops.A The higher/the more B Higher/more C Higher/little D

11、The higher/the less 18. _ is not properly set thus causing either advanced or retarded firing.A A piston B A fuel injection pump C A feed water pump D A lube oil pump 19. _ rods are not in proper condition so that too much fuel is supplied to the corresponding cylinder.A Piston B Sounding C Regulati

12、ng D Connecting 20. _ shows 1.2 meter and the specific gravity of the oil is 0.96According to the measuring scale, that makes 150 tons.A The piston rod B The push rod C The sounding rod D The connecting rod 21. _ allows for expansion and water make up in the water cooling system.A A top tank B A hea

13、d tank C A head valve D A drain tank 22. _ at the end of the distribution pipe ensures that adequate pressure is maintained by the pump.A A relief valve B An alarm C A pressure gauge D A non-maim valve 23. _ is used for washing and drinking.A The ballast system B The salt water system C The bilge sy

14、stem D The domestic system 24. _ provide the water to the pistons.A Pneumatic pipes B Hydraulic pipes C Telescopic pipes D Operating gas pipes 25. _ are fitted in the exhaust system and facilitate charge removal and scavenging in each cylinder.A Diffusers B Compressors C Steam boilers D Soot blowers

15、 26. _ are formed by abrasive particles entering the bearing and scoring the shaft.A Grooves B Recesses C Ridges D Nips 27. _ are mounted on and bolted to the bed-plate cross girders.A The crankshaft B The crankcase C The guide-ways D The frames 28. _ is a precaution which contributes to avoiding tr

16、ouble under normal operating conditions.A Constant inspection B Keeping constant load C Remaining constant temperature D varying speed 29. _ is a source of power by which the diesel engine may operate.A Water energy B Electrical energy C Chemical energy D Heat energy 30. _ is arranged for cleaning t

17、he lubricating oil in the system and clean oil can be provided from a storage tank.A A filter B A centrifuge C A distiller D A generator 31. _ is fully floating in both connecting rod small end and the piston skirt.A The piston rod B The cross head pin C The gudgeon pin D The crank-pin 32. _ is made

18、 of a boss with separated blades mounted into it.A A variable pitch propeller B A variable pitch nut C A fixed pitch parallel D A fixed pitch screw 33. _ is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve.A An air receiver B An operating valve C An automa

19、tic valve D An air distributor 34. _ neutralizes the acid conditions and_ cleanses the rings and grooves.A The detergency/the alkalinity B The alkalinity/the detergency C The inhabitant/the water D The additives/the distilled water 35. _ or air venting arrangement is fitted to the fuel supply passag

20、e.A An air pump B A compressor C A fuel pump D A priming 36. _ providing lubricating films, oil used in marine diesel engines have to remove heat from oil cooled piston.A Except for B Beside C Except D In addition to 37. _ the engines, the diesel engine is_ used engine on board.A Between/more common

21、ly B Among/the most commonly C Between/not more commonly D Among/not the most commonly 38. _ water is more expensive than fresh waterIt has high specific heat and low viscosity.A Distilled B Distilling C Boiling D Boiled 39. _ for the camshaft gear train is taken from a spur gear which for a six cyl

22、inder engine is at the coupling end.A The driven gear B The drive C The grease D The lubricating oil 40. _ in what position the engine stops there will always be at least one of the cylinders with its starting air valve open to admit compressed air to start the engine.A Because B Owing to C For D No

23、 matter 41. _ is secured by means of side-chock bolts and end-chock bolts.A The bedplate B The column C The main bearing D The double bottom 42. _ usually helps to induce air movement to assist combustion.A Cylinder cover B Main bearing C The exhaust valve D The piston movement 43. _ may have two em

24、ergency source of power, thus requiring two emergency switchboards.A Large passenger vessels B General cargo ships C Container ships D Oil tankers 44. _ supplies pilot air to control the cylinder air start valves.A An air compressor B An indicator cock C An air distributor D A safety valve 45. _ cle

25、arances in the main or crank pin bearings will sometimes be indicated by loss of pressure in the lubricating system before any bearing knock is heard.A Too larger B Too smaller C Excess D Excessive 46. A cast steel strong back is fitted in way of the combustion space to help absorb _.A flame tempera

26、ture B fuel oil C air movement D gas forces 47. A charge of fresh air is drawn into the engine cylinder and then _ by the moving piston_ very high pressure.A pressed/to B pressurized/with C pushed/in D compressed/to 48. A common trouble with the fuel pump plunger or fuel valve spindle is _.A water l

27、eakage B steam leakage C oil leakage D air leakage 49. A common trouble with the fuel pump plungers or fuel valve spindle is _.A broken down B stuck C oil leakage D carbonized 50. A diesel engine is similar to a gasoline engine except that the former has no _.A cross-head B cylinder C connecting rod

28、 D spark plug 51. A diesel engines crankcase oil level is found to be too highYou should suspect that _.A the engine was over filled B there might be a fuel leak C there might be a water leak D all of the above 52. A distance piece, known as a _ may be interposed between the rod and the bearing hous

29、ing.A bearing shell B bearing liner C compression plate D lead wire 53. A distance piece, with ground faces, known as a compression plate, may be interposed between the rod and the beating housing, its thickness being chosen to ensure the correct _.A compression pressure B compression test C compres

30、sion ratio D compression clearance 54. A distance piece, with ground faces, may be interposed between the rod and the bearing housing, its thickness being chosen to ensure the correct _.A expansion ratio B pressure ratio C compression ratio D clearance ratio 55. A governor automatically controls eng

31、ine speed by regulating _.A fuel supply B firing order C engine load D oil level 56. A gudgeon pin in a trunk piston may be free to float and rotate, with _ to limit axial movement.A split pins B crankpins C dipsticks D circlips 57. A heater in the circuit facilitates warning of the engine prior to

32、_ by circulating hot water.A starting B stopping C to start D to stop 58. A high temperature alarm or _ which will melt is used to guard against the explosion of compressor air pipelines.A a flame trap B a relief valve C a fusible plug D a bursting cap 59. A hot air start pipe indicates that there i

33、s _.A inefficient cooling B a leaking air start valve C a clogged drain valve D a leaking air bottle 60. A level gauge for a tank is to _.A give the pressure B give the contents C give the shape of the tank D give the accuracy level 61. A lubricant often has to perform many duties in any situation,

34、in addition to its fundamental job of_.A resisting oxidization B reducing friction C promoting moving speed D developing inertia 62. A main bearing consists of two shells which are secured by means of studs and _.A tie rods B through bolts C lead wires D bearing caps 63. A number of cylinder liners

35、are enclosed in one cast iron casing to form a _.A cylinder cover B cylinder block C cylinder frame D bed-plate 64. A reduction in load on a diesel engine results in _ of speed of the crankshaft.A a reduction B an increase C an outing D a downwards 65. A separate piston cooling system is used _ any

36、contamination from piston cooling glands to the piston cooling system only.A to help B to limit C to protect D to remove 66. A separate piston cooling system is used to limit any contamination _ piston cooling glands_ the piston cooling system only.A between, to B either, or C from, to D neither, no

37、r 67. A single piece_ fitted with bronze rings guides the piston in the cylinder liner.A piston skirt B piston crown C guide way D cross-head 68. A variable pitch propeller is made _ a boss with separate blades mounted into it.A of B up of C from D out 69. A: Please tell me the specifications and qu

38、antityB: _.A Pump diesel oil first B 300 tons of 180 cst fuel oil C The figure is all right D OK, Ill sign it 70. About half an hour before the engine is required, cooling water at _ must be circulated.A more than the working temperature B less than the working temperature C the working temperature

39、D the same as the surrounding temperature 71. According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two main systems, namely, the constant-pressure system and _.A the pulse-phase system B the pulse Doppler system C the pulse system D the pulse interv

40、al 72. Acid solution in the system can be tested from time to time by putting some on to a piece of lime.A strength B dense C percentage D velocity 73. Additives _ protective layers on metal surfaces guarding them against corrosion.A damage B form C dissolve D contaminate 74. Adjust _ by means of le

41、ad wire.A the clearance of the main bearing B the diameter of main bearing C the gap of main beating D the tolerance of main bearing 75. Administrations should bear in mind the significance of _ in maintaining safety of life and property at sea and in preventing marine pollution.A advanced nautical

42、equipment B advanced performance main engines C emergency equipment D communication and language skills 76. A-frames and cylinder block is held together by _ to form a rigid structure.A connecting rods B piston rods C tie rods D jack-bolts 77. A-frames are mounted on the bed plate and support _ and

43、cylinder block.A the main bearing B the cylinder cover C the entablature D the sump 78. After "F.W.E." is given, the air system is shut down, the _ gear put in, all drains and indicator cocks opened, and the cooling water kept running.A steering B timing C turning D running 79. After ensur

44、ing that the _ is correct the bearing clearance should be checked.A nap B gap C nip D deflection 80. After fitting back in place the gear wheels, dont forget _ them.A to grease B greasing C oiling D lubricating 81. After passing through the turbine the exhaust gas is conducted out into the _.A inter

45、cooler B compressor C cylinder D open air 82. After the engine is warned, we should_ the turning gear before starting up the engine.A take in B put in C take out D put up 83. After the order “_” is given, the air system is shut down, the turning gear put in.A Finished with Engine B Stop the Engine C

46、 Stand-by Engine D Slow-down Engine 84. Air cocks, usually positioned at the _ in a circulating system, is used to get rid of the air in the system.A bending joint B expansion tank C weld D the highest point 85. All the rings are slightly rounded on their external top and bottom edges to keep the oi

47、l film on the cylinder liner during _ for new piston rings.A the running-in period B the running process C gas exchange process D the boiler firing 86. All three systems have the ports _ to swirl the incoming air and direct it in the appropriate path.A angled B rounded C being angled D being rounded

48、 87. Although the crankshafts of medium diesel engines appear to be robust, they rely on the support of _ to develop their full strength.A the piston rods B the crank throws C the thrust bearings D the main bearings 88. Aluminum pistons have _ coefficient of thermal expansion compared with those of

49、cast iron.A higher B lower C the same D none of the above 89. Among the rings of a piston the _ one is subjected to the greatest load and temperature.A bottom B middle C top D none of the above 90. An aluminum piston has lower inertia and higher coefficient of _ compared to that of cast iron.A visco

50、sity B twisting moments C inertia D thermal expansion 91. An electrically driven automatically operating auxiliary blower is provided for slow speed and _ of a low speed diesel engine.A manoeuvring operations B bad combustion C cooling D mooring trial 92. An increase in load on a diesel engine resul

51、ts in _ of speed of the crankshaft.A a reduction B an increase C an outing D a downwards 93. An interlock in the remote operating valve line stops the valve _ when the engine turning gear is engaged.A to open B opening C open D opened 94. An overspeed safety device is usually fitted to a generator e

52、ngine for _ in the event of overspeed.A cutting power off the engine B increasing the fuel pump setting C braking the crankshaft D stabilizing the ship speed 95. As a heat engine, _ energy is the source of power by which the diesel engine can be operated.A electric B heat C mechanical D exhaust 96.

53、As for a diesel engine, lack of combustion air may be due to _.A fouling turbine B fuel pump faults C lubrication failure D excessive cooling 97. As the plunger moves up, the ports are closed and the fuel _ and delivered to the injector nozzle at very high pressure.A being compressed B to be pumped up C is pressurized D are built up 98. At least _ cylinders in four-stroke engine will be configured to ensure that the engine can be started with