中华人民共和国海事局207

中华人民共和国海事局

2003年第1期海船船员适任证书全国统考试题(总第30期)

科目：轮机英语试卷代号：806

适用对象：近洋航区750-3000KW及以上船舶二/三管轮

（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74题，每题1分，第75题至78题，每题1.5分,第79题至80题,

每题10分。

一、单项选择题：

1．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

2. What function is provided by the crankcase ventilation system on some diesel engines?

A. Increases the sludge forming tendency of lube oil.

B. Prevents the accumulation of combustible gases.

C. Improves lube oil cooling.

D. Improves cold weather starting.

3. If your vessel burns 8 tons of fuel per day at 15 knots, how many tons per day will it burn at 18

knots?

A. 13.82 tons

B. 15.61 tons

C. 16.00 tons

D. 16.37 tons

4. The joint face between the cylinder cover and the liner is arranged _____ the combustion process

as possible.

A. such far away from

B. such near by

C. as far away from

D. as near by

5. Some vessels are equipped with a water lubricated stern tube. When at sea, operating under

normal conditions, the water service valve from the ship's saltwater system to the bearing should be _____.

A. closed, and no leakage permitted across the shaft packing

B. closed, and only slight leakage permitted across the shaft packing

C. opened, and no leakage permitted across the shaft packing

D. opened, and only slight leakage permitted across the shaft packing

6. A: Please tell me the specifications and quantity. B: _____.

A. Pump diesel oil first

B. 300 tons of 180 cst fuel oil

C. The figure is all right

D. OK, I'll sign it

7. 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

8. Any carbon built up on surfaces must be washed away by _____ additives and held in suspension

by a _____ additive.

A. dispersant /detergent

B. detergent/dispersant

C. dispersant /dispersant

D. detergent/detergent

9. Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed _____.

A. apparent slip

B. true slip

C. pitch

D. propulsive efficiency

10. 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. Stand-by Engine

D. Slow-down Engine 11. By which of the following means is force efficiently provided to vary the pitch of the blades on a

modern controllable pitch propeller?

A. Hydraulic

B. Mechanical

C. Pneumatic

D. Electrical

12. The diffuser prevents pressure pulses from one cylinder _____ another during operation.

A. to interfere with

B. interfering with

C. to help scavenging

D. helping scavenging

13. The difference between a supercharged engine and an un-supercharged engine is that _____

operates at an increased pressure.

A. the later

B. the latter

C. the former

D. the farmer

14. Large, two-stroke/cycle, main propulsion, diesel engine cylinders can be successfully pressure

charged during normal operation, by using the _____.

A. exhaust gas temperature system

B. exhaust load system

C. constant or pulse pressure system

D. constant volume system

15. In general, _____ is suitable for delivering samll quantities at high pressure.

A. reciprocating pump

B. gear pump

C. centrifugal pump

D. vane pump

16. The pumps employed on board ship can be divided into two main categories, i.e. _____pumps

and centrifugal pumps.

A. gear

B. non-positive displacement

C. positive displacement

D. rotary

17. If the capacity of a centrifugal pump decreases gradually over a long period of time, you should

replace the _____.

A. packing gland

B. mechanical seals

C. lantern rings

D. wearing rings

18. _____ is used for washing and drinking.

A. The ballast system

B. The salt water system

C. The bilge system

D. The domestic system

19. The bilge system has been performing well; however, the aft starboard engine room bilge-well

suddenly fails to be pumped out. Which of the following should be done first to determine the cause?

A. Open the bilge pump for inspection.

B. Remove each of the manifold valves.

C. Remove only the manifold valve to the affected bilge-well.

D. Attempt to pump out another bilge well to determine if the entire system is affected.

20. Every liquid has a pressure at which it will vaporize and this pressure varies with temperature.

The word “ which” means _____.

A. a liquid

B. a pressure

C. a temperature

D. None of the above.

21. Before an auxiliary boiler is shutdown for an extended period of time, the water in the boiler

should have a pH value of _____.

A. 10

B. 7

C. 4

D. 1

22. The amount of heat released by steam when it changes to water at the same temperature is called

_____.

A. latent heat of condensation

B. latent heat of vaporization

C. latent heat of saturation

D. sensible heat of condensation

23. After a normal, or safety shutdown, automatic combustion control systems for an auxiliary boiler

are designed to prevent the immediate refiring of a burner in order for the ______.

A. furnace to be re-purged

B. electric charge to buildup in the igniter

C. fuel pump to restart

D. drum level to stabilize

24. For a purifier changing to a gravity disc with smaller hole diameter will move the interface

towards the ___.

A. bowl periphery

B. bowl center

C. upper surface

D. lower surface

25. The principle of separation by which all commercially available oily water separators function

is_____ differential between oil and water.

A. the temperature

B. the viscosity

C. the gravity

D. the size

26. Which of the following factors will have the greatest effect on the heating load within a

conditioned space?

A. Solar gain

B. Infiltration and ventilation air

C. Occupants inside the space

D. Entertainment equipment within the space

27. Burning diesel oil should be treated as which class of fire?

A.Class … A ?

B.Class … B ?

C.Class … C ?

D.Class … D ?

28. Cargo handling unit is rated according to the _____ to be lifted.

A. cargo crane

B. jib

C. safe working load

D. oil pressure

29. These include deck machinery such as mooring equipment, anchor handling equipment, cranes

and _____.

A. boilers

B. bow thrusters

C. stabilizers

D. hatch covers

30. The size of ball and roller bearings can be identified by the _____.

A. rolling member size

B. inner race cone width

C. manufacturer's numerical code

D. outer ring width

31. Brine density in a distilling plant is measured with a/an _____.

A. psychrometer

B. salinometer

C. anemometer

D. sphygmomanometer

32. If an electric motor driven air compressor fails to start, it may be due to a _____.

A. leaking discharge valve

B. jammed suction valve

C. tripped overload relay

D. broken discharge un-loader

33. After passing through the expansion valve the refrigerant should be in the state of _____.

A. vapor

B. liquid

C. solid

D. None of the above is true.

34. Which of the following will be desirable properties of refrigerant? I. non-explosive; II. non-

corrosive; III. that it doesn't react with lubricants

A. I,II and III

B. I and II

C. I and III

D. II and III

35. The cooler as the liquid becomes, _____.

A. the faster it will evaporate

B. the slower it will condense

C. the slower it will evaporate

D. the faster it will flow

36. While troubleshooting a refrigeration system for low head pressure, liquid refrigerant flooding

back from the evaporator is determined to be the cause. It may be necessary to _____.

A. change the expansion valve adjustment

B. readjust the water regulating valve to increase the flow of water

C. purge air from the condenser

D. clean the waterside of the condenser

37. The output voltage of a three-phase alternator is regulated by the _____.

A. AC voltage to the armature

B. AC voltage to the field

C. DC voltage to the armature

D. DC voltage to the field

38. The switchboards for a .c. systems differ from the d.c. switch gear in that the open type panels are

generally _____ and the dead-front switch gear is the common rule.

A. permissibly

B. permissible

C. no permissible

D. not permissible 39. Any electric motor can be constructed to be _____.

A. short proof

B. ground proof

C. explosion proof

D. overload proof

40. Generators should have an excitation/voltage regulation system which will enable them to share

the steady state reactive load _____ no machine exceeds its proportional share of reactive load by more than 10% of the rated reactive load of the largest generator.

A. when

B. so as

C. such that

D. though

41. Temperature control valves installed in the jacket cooling water system of a diesel engine,

modulates the rate of water flow through the _____.

A. cooling water pump

B. nozzle cooling passages

C. cylinder jackets

D. heat exchanger

42. This arrangement is _____ if the elements are directly connected to one another and the control

action takes place without human involvement.

A. a manual closed loop

B. a manual opened loop

C. an automatic closed loop

D. an automatic opened loop

43. 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

44. Most conducting materials such as copper, aluminum, iron, nickel, and tungsten _____.

A. increase in resistance with increased temperature

B. increase in resistance with decreased temperature

C. decrease in resistance with increased temperature

D. increase in conductance with increased temperature

45. UMS stands for _____ .

A. ultra much space

B. universal medium system

C. unit machined space

D. unattended machinery space

46. As a general rule, the first troubleshooting action to be taken in checking faulty electric control

devices is to _____.

A. draw a one line diagram of the circuitry

B. test all fuses and measure the line voltage

C. take megger readings

D. insulate the apparatus from ground

47. To repair a small electrical motor that has been submerged in saltwater, you should _____.

A. wash it with fresh water and apply an external source of heat

B. renew the windings

C. send it ashore to an approved service facility

D. rinse all electrical parts with a carbon tetrachloride cleaning solvent and then blow dry the

motor with compressed air

48. Shims of different thicknesses are inserted between the shells to enable adjustment of ______.

A. the bearing clearances

B. the bearing thickness

C. the bearing strength

D. the bridge hardness

49. ______ is a precaution which contributes to avoiding trouble under normal operating conditions.

A. Constant inspection

B. Keeping constant load

C. Remaining constant temperature

D. Varying speed

50. 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 treatment of the jacket water

C. a clogged raw water sea suction

D. cavitation erosion of the heat exchanger tubes

51. The bearing cap and shell are replaced and tightened up until _____.

A. the “nip ”is zero

B. the“ nap”is zero

C. the“gap”is correct

D. the “clearance” is correct

52. White smoke exhausting from an operating diesel engine may indicate _____.

A. a cracked liner

B. burning lube oil

C. an overloaded engine

D. insufficient combustion air

53. Combustion knock can occur in the cylinders of a diesel engine under any condition permitting

_____.

A. a shortened ignition delay period

B. a lean fuel/air mixture

C. excess fuel in the combustion chamber

D. rapid vaporization of injected fuel droplets

54. Each journal and pin should be examined for _____ and grooving.

A. bridges

B. recesses

C. rears

D. ridging

55. _____, the engine must be stopped immediately.

A. Should knocking occur

B. If knocking occur

C. Should if knocking occurs

D. If occur knocking

56. Poor combustion in a diesel engine can be caused by_____.

A. high compression pressure

B. low intake air temperature

C. low exhaust pressure

D. high scavenge air temperature

57. Which of the motors for the devices listed below is fitted with an instantaneous overload relay?

A. Fan

B. Pump

C. Winch

D. Machine tool

58. The unit of electrical power is the _____.

A. ampere

B. kilovolt

C. watt

D. farad

59. During repair, lubrication lines and orifices must be _____.

A. taken away

B. engaged

C. connected

D. sealed off

60.It is well known that the whole power distribution of the ship?s electrical services mainly depend

on the _____.

A. sub-boards

B. main switchboards

C. emergency switchboards

D. distribution boards

61. Any increase in the exhaust back pressure of a four-stroke/cycle diesel engine will _____.

A. reduce engine horsepower output

B. aid in silencing the exhaust noise

C. increase the mean effective pressure

D. contribute to effective cylinder scavenging

62. In a diesel engine, excessive cylinder liner wear will cause _____. I. increased blow-by II. wear

between the piston ring and groove

A. I only is correct

B. II only is correct

C. both I and II are correct

D. neither I or II are correct

63. When under maneouvring conditions with the machinery being manually operated the control unit

or console should be _____.

A. automatically controlled

B. continuously manned

C. off power

D. None of the above is true.

64. In the engine department, the _____ is looked upon to provide the leadership that is needed.

A. captain

B. chief engineer

C. chief officer

D. chief motorman

65. Upon the completion of required tests, a _____ should be placed on each extinguisher, showing the

date and the person who completed the tests.

A. cap

B. disc

C. tag

D. cover

66. If the buoyant force on a ship's hull is equal to or greater than the displacement tonnage, the ship

will _____.

A. require ballast added to only the port side tanks

B. be down by the head

C. sink

D. float

67. A fire involving trash and paper waste would be classified as a _____.

A. class A

B. class B

C. class C

D. class D

68.The order“Bow thrust stop.”means“_____”.

A. Bow thrust full to port

B. Bow thrust full to starboard

C. No bow thrust revolutions

D. No stern thrust revolutions

69. The auxiliary steering gear must be capable of being brought speedily into operation and be able to

put the rudder over from 15 degrees on one side to 15 degrees on the other side in no more

than_____ with the ship at its deepest service draught and running ahead at the greater of one half of the maximum service speed or _____.

A. 28 seconds/7 knots

B. 28 seconds/14 knots

C. 60 seconds/7 knots

D. 60 seconds/14 knots

70. A _____sometimes called filters, is a device designed to prevent the passage of unwanted solids

into the system.

A. Steam trap

B. Check valve

C. Separator

D. Strainer

71. In cleaning up an oil spill, the use of chemical agents would _____.

A. absorb the oil for easy removal

B. remove the oil from the water

C. disperse or dissolve the oil in the water

D. not affect the oil

72. Diesel fuel vapors _____.

A. can not be ignited by a spark unless the vapor is in a confined space

B. are nontoxic in all concentrations

C. can not be ignited by a spark unless they are at their auto-ignition temperature

D. are heavier than air

73. Which of the listed classes of fire would most likely occur in the engine room of a vessel?

A. Classes A and B

B. Classes B and C

C. Classes C and D

D. Classes A and D

74. The possibility of damage from operating a diesel engine at critical speeds is reduced by the use of

_____.

A. an isochronous governor

B. elastic engine mounts

C. a vibration damper

D. a cast iron bed plate with good flexible qualities

二、关联题（每组关联题题干下有4个小题，每小题4个选项）

The CO 2 fire extinguishing installation may incorporate a smoke sampling system so that fire can be detected in the early stage at the smoke detecting cabinet, which is situated in the wheelhouse. Each cargo compartment is individually connected to the smoke detecting cabinet with small bore piping and, by a suction fan mounted on the wheelhouse roof, samples of the air in each cargo space are

continually drawn up to the smoke detecting cabinet and discharged into the wheelhouse or the atmosphere through a diverting valve. Thus smoke from a fire in any cargo space can be immediately detected.

75. The CO 2 fire extinguishing system may combine with to detect fire in the early stage of fire

development.

A. a smoke detecting system

B. a wheelhouse

C. a cargo compartment

D.a crew?s cabin

76.The function of the smoke sampling system is .

A. to analyze smoke components

B. to detect fire in the early stage

C. to prevent the wheelhouse from catching a fire

D. to ventilate each cargo compartment

77.According to this paragraph, which of the following statements is true?

A. The smoke sampling system consists of the CO 2 fire extinguishing installation and smoke

detecting cabinet.

B. The smoke detecting cabinet is located on the wheelhouse roof.

C. The suction fan draws samples of the air from cargo spaces.

D. Samples of the air flow into the detecting cabinet at regular intervals.

78.Which of the following devices does the smoke sampling system consist of?

(1) fire extinguishing installation (2) smoke detecting chamber (3) wheelhouse

(4) cargo compartment (5) suction fan (6) diverting valve

A. (1) (2) (5)

B. (2) (4) (5)

C. (3) (4) (6)

D. (2) (5) (6)

三、中译英（共2题，请将答案写在答题纸上）

79. 油水分离器工作正常，滤器定期清洗。

80. 所有活塞、轴瓦和滚珠轴承检查并测量。