海事局海船船员适任证书全国统考试卷：38803

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1、中华人民共和国海事局2005年第3期海船船员适任证书全国统考试题(总第38期)科目：轮机英语 试卷代号：803适用对象：无限、近洋航区3000KW及以上船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。第1题至68题，每题1分，第69题至76题，每题1.5分,第77题至78题, 每题10分。一、 单项选择题：1. Which one is connected to the piston? A. cylinder B. connecting rod C. thrust shaft D.

2、 crank shaft 2. The trouble-free life of an engine indicates_. A. the period of time during which no trouble occurs to the engine B. no trouble will occur to the engine all its life C. trouble may occur freely to the engine D. no matter what you do to the engine, no trouble will occur during this pe

3、riod 3. Additives _protective layers on metal surfaces guarding them against corrosion. A. damage B. form C. dissolve D. contaminate 4. Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from _. A. within the space concerned B.

4、 outside the space concerned C. the throttle station D. within the fire room 5. In some designs the cylinder oil is timed so that the oil injects only on the_. A. piston crown B. piston groove C. piston skirt D. piston ring belt 6. Which of the processes listed consumes the greatest amount of power

5、while producing the greatest amount of heat? A. Overcoming sliding friction B. Overcoming rolling friction C. Overcoming fluid friction D. Overcoming oil wedge friction 7. _provide the water to the pistons. A. Pneumatic pipes B. Hydraulic pipes C. Telescopic pipes D. Operating gas pipes 8. According

6、 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 interval 9. Vee-type engines have the connecting rods fr

7、om two cylinders connected to each _of the crankshaft. A. throw B. web C. main bearing D. deflection 10. _ the bodies are, _the friction will be. A. The smoother/the greater B. Smoother/less C. The rougher/the greater D. Rougher/greater 11. The engine speed at which resonance can occur is termed _.

8、A. maximum speed B. full speed C. sea speed D. critical speed 12. A crankshaft whose center of gravity coincides with its center line is said to be_. A. dynamically balanced B. statically balanced C. counter balanced D. resonantly balanced 13. _ the repair in so short a time is unknown to us. A. How

9、 they finished B. How did they finished C. That how they finished D. That how did they finished 14. The principle of hydrostatic lubrication has been applied to the cross-head using_. A. high pressure lubricators B. tie rods C. fuel injectors D. fuel valves 15. Load control on a diesel engine is acc

10、omplished by_. A. regulating the speed of the turbocharger B. rotating the fuel injector pump plunger C. regulating the speed of the fuel oil transfer pump D. changing engine timing 16. A reduction in load on a diesel engine results in _of speed of the crankshaft. A. a reduction B. an increase C. an

11、 outing D. a downwards 17. Which of the listed statements is correct concerning the starting of centrifugal pumps? A. They should always be started with the discharge valve closed. B. They should always be started with the discharge valve opened. C. A priming pump is always required to flood the imp

12、eller suction. D. They should always be started with the sealing line valves closed. 18. The _discharge a nearly constant amount of liquid regardless of pressure. A. mixed-flow pump B. axial-flow pump C. centrifugal pump D. displacement pump 19. In an auxiliary boiler steam and water system, the hig

13、hest pressure will be in the _. A. steam stop valve B. dry pipe C. feedwater system D. generating tubes 20. The rate of heat transfer in a water-tube auxiliary boiler can be increased by _. A. operating the boiler at less than normal water level B. installing fins on the firesides of water-tubes C.

14、increasing the amount of excess air to the burners D. treating the boiler water with chemical oxygen scavengers 21. High-speed rotation in a centrifugal purifier can produce a force_ the force of gravity. A. many thousand times larger than B. the same as C. many thousand times smaller than D. none o

15、f the above 22. When in operation, it is unavoidable that a small amount of oil _through leakage, and in order to compensate for these leaks the system is connected to a feed pump. A. escapes B. overheats C. expands D. accelerates 23. Grease the roller bearings with H.P. gun . In the sentence H.P. m

16、eans_. A. horse power B. high pressure compressor C. hand pump D. high pressure 24. The oil sludge is burnt in the _onboard. Ill show you the ashes. A. boiler B. main engine C. auxiliary engine D. incinerator 25. The term discharge , as it applies to the pollution regulations, means _.A. spilling B.

17、 leaking C. dumping D. all of the above 26. When normal operating pressure is applied to the hydraulic oil used in a high-pressure system, the oil _.A. viscosity will decrease B. volume will increase C. volume will decrease D. pour point will be reduced 27. _are used for hauling in or letting out th

18、e wires which fasten the ship to the shore. A. Cargo winches B. Mooring winches C. Windlasses D. Cargo hatches 28. Which of the following hydraulic systems is not one of the three sub-division of the hydraulic drive system? A. constant pressure system B. variable pressure system C. variable displace

19、ment system D. constant volume system 29. With reference to rules governing steering gear, which one of the following rules is incorrect ? A. It is required that all ships are provided with two independent steering gear systems that is one main and one auxiliary. B. The auxiliary gear could be power

20、 operated in passenger ships. C. The auxiliary gear must be of adequate strength and sufficient to steer a ship at navigable speed. D. All moving parts of the steering gear must be guarded against any possible damage. 30. Broken valve strips in an operating low pressure, air compressor will cause _.

21、A. an immediate crankcase explosion B. oil contamination in the compressed air C. a decrease in compressor capacity D. no immediate loss of the compressed air capacity 31. Condensate must be drained from the intercooler and after-coolers of an air compressor because _.A. the cooling effect of the co

22、ndensate reduces the compressors efficiency B. a danger of explosion exists whenever water is present in a compressor C. water causes erratic operation of pneumatic components D. the volumetric capacity of the first stage is reduced if water remains 32. If the head pressure of a reciprocating refrig

23、eration compressor is excessive, _.A. the relief valve should open before the high pressure cutout B. the relief valve should open and allow the excess refrigerant to flow to the receiver C. the high pressure cutout switch should operate before the relief valve opens D. you should close the suction

24、valve 33. Sludge may form in the crankcase of an air conditioning compressor as a result of _.A. bubbling refrigerant B. overheating and oxidation C. lowered operating temperatures D. reducing the cloud or flash point 34. A feeler or thermal bulb is used for the expansion valve to _.A. detect the te

25、mperature B. detect the pressure C. heat the refrigerant D. accelerate the refrigerant 35. The dew point of air is reached when the wet bulb temperature is _.A. twice the dry bulb temperature B. 10 above the dry bulb temperature C. 5 above the dry bulb temperature D. equal to the dry bulb temperatur

26、e 36. _ is used to produce electric power. A. An alternator B. A fresh water generator C. A compressor D. A clarifier 37. In order to change the direction of rotation of a D.C. motor _.I. the field leads must be changed ; II. the input leads must be changed A. I only B. II only C. either I or II D.

27、neither I or II 38. Which of the following should be the FIRST step in removing a generator from parallel operation? A. Trip the generator off the switchboard. B. Turn off all electrical equipment. C. Remove the load from the off going generator. D. Increase the cycles of the generator staying on th

28、e line. 39. There is a danger of the starting current _that the windings are burnt out. A. to increase B. to be so increased C. increased D. being so increased 40. The viscosity regulator controls the fuel oil temperature _ provide oil at the correct viscosity for combustion. A. in order that B. bec

29、ause of C. in order to D. owing to 41. When there is a fire in a large electric motor, normally the very FIRST step is to _.A. secure the electric supply B. ventilate area to remove smoke C. start the fire pump and lead out hose D. apply foam 42. Engine protection by means of an alarm or shutdown co

30、ntrol can be obtained with devices that are sensitive to _.A. temperature B. pressure C. engine speed D. all of the above 43. With UMS, when the engine room is unwatched _will control the main engine. A. the bridge officer on watch B. the chief engineer C. the duty engineer D. the duty motorman 44.

31、The correct tightening is obtained by use of _to measure the extension given to the bolts. A. pressure gauges B. stretch gauges C. thermometers D. bridge gauges 45. A main propulsion diesel engine is normally shut down by _.A. shutting off the air supply B. over-speeding the engine C. securing the f

32、uel supply D. securing the ignition system 46. One cylinder of a diesel engine is persistently knocking and does not cease when the fuel supply to that cylinder is secured. Which of the following problems may be the cause? A. Low loading of the cylinder. B. Excessive cooling of that piston. C. Slugg

33、ish ring action on the piston. D. A mechanical defect in a working part. 47. Poor combustion in a diesel engine can be caused by _.A. reduce the engine load B. increase the cooling water flow C. increase the lube oil pressure D. adjust the fuel rack 48. If fuel injection to a four-stroke/cycle diese

34、l engine begins earlier than designed, ignition may be delayed because the _.A. cylinder compression pressure may not be high enough B. cylinder compression temperature may be too high C. fuel oil injection pressure may not be high enough D. scavenge and purge process is incomplete 49. Diesel engine

35、 automated control systems may utilize sensing devices of dual function, with sensing ranges providing both alarm and engine shut down capability. Which of the key points listed would only require an alarm sensor? A. Lube oil pressure and temperature. B. Jacket water pressure and temperature. C. Eng

36、ine over-speed. D. Lube oil sump level. 50. Fix the fuel injector into _after repair. A. the cylinder liner B. the cylinder cover C. the cylinder jacket D. the piston 51. Lower suction pressure of a pump may be caused by _.A. too much air in the pipe line B. closed inlet valve C. empty tank D. leaky

37、 pipe 52. Diesel engine exhaust temperatures may be used to indicate _.A. leaking exhaust valves B. an overloaded cylinder C. a clogged injector nozzle D. all of the above 53. Shims of different thicknesses are inserted between the shells to enable adjustment of _.A. the bearing clearances B. the be

38、aring thickness C. the bearing strength D. the bridge hardness 54. Oil mist detectors are usually used on board to detect oil mist density within _. A. the engine crankcase B. the engine scavenge boxes C. drain tanks D. fuel tanks 55. Tools with _handles should be used to check electric circuit. A.

39、plastic B. metal C. stainless steel D. copper 56. It is well known that the whole power distribution of the ships electrical services mainly depend on the _.A. sub-boards B. main switchboards C. emergency switchboards D. distribution boards 57. The _is used to measure current. A. ammeter B. voltmete

40、r C. wattmeter D. frequency meter 58. If the jacket water temperature of an operating diesel engine suddenly rises above normal, the cause can be attributed to _.A. an overfilled expansion tank B. excess chromate(铬酸盐) treatment of the jacket waterC. a clogged raw water sea suctionD. cavitation erosi

41、on of the heat exchanger tubes59. The Company should ensure that _involved in the Companys SMS have an adequate understanding of relevant rules, regulations, codes and guidelines. A. masters B. chief engineers C. crew D. personnel 60. Routine monitoring of a diesel engine should include _.A. checkin

42、g for leaks B. checking temperatures and pressures C. listening for abnormal noises D. all of the above. 61. If your vessel has a starboard list after taking on fuel, you would transfer fuel _.A. to starboard B. to port C. forward D. aft 62. The conventions under which the port state control inspect

43、ion is carried out include all the following except _. A. SOLAS 74 B. MARPOL 73/78 C. STCW 78/95 D. ISM Code 63. _may have two emergency source of power, thus requiring two emergency switchboards. A. Large passenger vessels B. General cargo ships C. Container ships D. Oil tankers 64. Tell your men _

44、the rules and procedures of working when dismantling the equipment. A. not to go against B. dont go against C. not go to against D. to not go against 65. Which of the followings is least likely to cause the ignition of fuel vapors? A. Static electricity B. An open running electric motor C. Loose wir

45、ing D. Explosion proof lights 66. The term proper metering , as applied to a diesel fuel injection system, can be best defined as _.A. delivering the same quantity of fuel to each cylinder for each power stroke according to engine load B. maintaining the metering adjustment for a reasonable period u

46、nder all load conditions C. timing fuel injection to obtain maximum power and good fuel economy D. distributing the fuel to all parts of the combustion chamber for proper combustion 67. Administrations should bear in mind the significance（重要性） of _in maintaining safety of life and property at sea an

47、d in preventing marine pollution. A. advanced nautical equipment B. advanced performance main engines C. emergency equipment D. communication and language skills 68. During inspection of the machinery space, which of the following statements points to an unsatisfactory organization of the systematic

48、 maintenance? A. missing valve hand wheels B. dirty tank tops C. a large number of temporary repairs D. All of the above. 二、 关联题（每组关联题题干下有4个小题，每小题4个选项）第一组：The cylinder cover is made of cast iron and is provided with two inlet valves, two exhaust valves, a central mounted fuel injection valve and an

49、indicator valve. The inlet valves are mounted with separate seating rings made of special heat-resistant cast iron. These rings are pressed into the cylinder cover in cooled conditions. The exhaust valve seatings are special, water-cooled seating rings. These rings are also pressed into the cylinder

50、 cover in cooled conditions. Each cylinder cover is provided with cooling water from a screwed -on tubular cooling water jacket through radial bores in the thick bottom of the cover. Each of the radial bores is connected to two side bores. The cover has further separate bores that lead to the coolin

51、g water jacket and the bores in the cylinder cover to a common outlet chamber. The cylinder cover and cylinder liner are assembled by means of four threaded studs screwed into the frame. Tightening is effected by means of hydraulic tools, and sealing by means of a thin ring mounted between the cylin

52、der cover and the cylinder liner. A starting valve is mounted on the side of the cylinder cover. The engine has oil-cooled pistons of cast iron. The pistons are provided with three compression rings and a spring-loaded scraper ring. A space for cooling oil is provided at the top of the piston. The s

53、craper ring prevents lubricating oil from being drawn up into the combustion chamber.Oil for cooling the piston crown is led from a bore in the crankshaft through a channel in the connecting rod and the connecting rod journal, to the bushing for the gudgeon pin. This bushing is provided with an annu

54、lar groove from which part of the oil is led for lubricating the gudgeon pin. The remaining oil continues through bores in the gudgeon pin and the piston to piston cooling chamber.69. This passage is mainly about _.A. cylinders and cylinder covers B. cylinders and pistons C. cylinder covers and pist

55、ons D. cylinders and oil 70. Which of the following may be provided on top of the cylinder cover? A. two exhaust valves B. a starting valve C. an indicator D. all of the above 71. Which of the following is true? A. The inlet valve seating rings are of heat-resistant cast steel. B. There are six stud

56、s by which the cylinder cover and liner are tightened. C. The exhaust valve seatings are cooled by water. D. A copper ring is mounted between the cylinder cover and the liner. 72. Which of the following is NOT true? A. The pistons are cooled by oil. B. Four piston rings are fitted to each piston. C.

57、 The scraper ring scrapes the oil downwards. D. The piston cooling is of splash type. 第二组：Beck Smith, a PSCO from Port Hamburger, is carrying out an inspection in the machinery space of M/V SUN. Here is a dialogue between the PSCO and the Chief engineer. PSCO: Chief engineer, your escape route marke

58、d in arrows at stairs, or corridors to emergency exit should be clearly sighted in dark. These marks should be smeared in fluorescence（荧光） in order to evacuate when lighting is cut off. Chief Engineer: OK, I will rectify this as quickly as possible. PSCO: One more, your pumping line may slightly lea

59、k oil Chief Engineer: No. Our pumping line has no trouble at all. PSCO: Trust me. I have served Chief Engineer for many years. There is somewhere leaking oil. Chief Engineer: How do you know? PSCO: Oil tank bottom is very clean but with oily brightness. Significantly, you prepared for PSC inspection for quite a long time. As leaking oil, you cleaned second time just now. Chief Engineer: You are very smart!