轮机英语试题二十

试题二十

1.______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

2.working with which of the following types of diesel engine arrangements is a waste heat

boiler most likely to produce the maximum steam pressure, temperature, and flow conditions?

A. Supercharged, four-stroke/cycle diesel engine.

B. Supercharged, loop scavenged diesel engine.

C. Turbocharged, crossflow scavenged diesel engine.

D. Turbocharged, return flow diesel engine.

3.The auxiliary engine and the a.c. generator can be connected with the______.

A. cam

B. crosshead

C. bulge

D. coupling

4.A: Please tell me the specification 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

5.The lube oil to lubricate the surfaces of the cylinder liners is spread over by the ______.

A. sliding piston rings

B. engine's camshaft

C. small pumps

D. forced feed system

6. A lube oil filter can be used to remove most contaminants from lube oil. A contaminant

which will remain in the lube oil after filtering is ______.

A. abravise

B. fuel oil

C. sediment

D. impurities

7.______provide the water to the pistons.

A. Pneumatic pipes

B. Hydraulic pipes

C. Telescopic pipes

D. Operating gas

pipes

8. 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

9.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

10.Engage the flywheel with the ______.

A. turning gear

B. motor

C. driving gear

D. driven gear

11.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

12.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. arm rod

13.The process of loop scavenge is that the exhaust will be via ports______the air ports and

controlled by the same piston.

A. behind

B. far from

C. adjacent to

D. in front of

14.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.

middle

15. 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

16.All of the diesel engine cylinder firing pressures are normal, yet all of the exhaust

temperatures are low. Which of the following situations is responsible for this condition?

A. Excessively early injection timing.

B. Combustion knock.

C. Leaking piston rings.

D. Light load.

17.______, the following possible causes should be investigated.

A. Should the engine stop without apparent reason

B. The engine should stop without apparent reason

C. The engine stops without apparent reason

D. The engine is stopped without apparent reason

18. A large low speed main propulsion diesel engine may become overloaded by______.

I. a heavily fouled hull II. strong head winds and heavy seas

A. I only

B. II only

C. both I and II

D. neither I nor II

19.The control mode in which the final control element is moved from one of two fixed

positions

to the other is known as ______.

A. dead band action

B. neutral zone action

C. range

D. on-off action

20.Air leakage between the shaft and stuffing box packing in a centrifugal pump is prevented by

______.

A. a compressed packing gland

B. lantern rings between the packing rings

C. a liquid seal

D. the stuffing box gland

21.Strainers, sometimes called______, are devices designed to prevent the passage of unwanted

solids into or further along a system.

A. dampers

B. filters

C. stopper circuits

D. separators

22.Waterside scale in a fire-tube boiler may cause ______.

A. increased heat transfer

B. fireside erosion

C. high steam demand

D. overheated tubes

23.Excessive alkalinity of the water in an auxiliary boiler can cause ____________.

A. caustic embrittlement of the boiler metal

B. acidic corrosion of the boiler metal

C. hard scale deposits on the boiler tubes

D. etching of the heat exchange surfaces

24.When an auxiliary boiler is panting and emitting black smoke, you should _____________.

A. increase the fuel oil temperature.

B. decrease the fuel oil temperature.

C. decrease the fuel oil supply pressure.

D. increase the air supply.

25.There is a ______in the bilge system.

A. booster pump

B. evaporator

C. bilge pump

D. cooler

26.Strainers and fine filters should be cleaned at intervals, ______ prevent dirt from getting

under

a fuel injection pump valve.

A. in order that

B. so as to

C. so that

D. in

addition to

27.The oil sludge is burnt in the ______nboard. I’ll show you the ashes.

A. boiler

B. main engine

C. auxiliary engine

D. incinerator

28. A shipboard oil pollution emergency plan is required on ______.

A. all vessels, regardless of size and commercial application

B. any barge or other ship which is constructed or operated in such a manner that no oil in

any

form can be carried aboard

C. an oil tanker of 150 gross tons or above, or other ship of 400 gross tons or above

D. an oil tanker of 400 gross tons and above, or other ships of 150 gross tons and above

29.According to the international regulations concerning the prevention of pollution of sea areas

from ships, the disposal into the sea of all plastics is ______.

A. welcome

B. admitted in some special sea areas

C. prohibited

D. acceptable

30.In the hydraulic system, ______ is the actuator.

A. oil pump

B. control valve

C. hydraulic motor

D. fittings

31.The usual number of single-acting pistons used in a variable stroke axial-piston pump is

______.

A. 3 or 5

B. 5 or 7

C. 7 or 9

D. 9

or 11

32.The hand steering is a method by which the motion of the rudder is controlled with ______.

A. a motor-driven steering wheel

B. a pneumatic steering wheel

C. a hand-driven steering wheel

D. an electric steering wheel

33.The control rod of a steering gear pump is attached at its outer end to ______.

A. the hunting gear

B. the rudder stock

C. the rudder controller

D. the feedback unit

34.The main steering gear must be able to steer the ship at maximum ahead service speed and be

capable at this speed, and at the ship’s deepest service draught, of putting the rudder from 35 degrees on one side to 30 degrees on the other side within no ______.

A. more than 28 seconds

B. more than 60 seconds

C. less than 28 seconds

D. less than 60 seconds

35.If an air compressor is used to supply compressed air to outlets throughout the engine room

and on deck of a vessel, the system is known as the ______.

A. combustion control air system

B. supply air system

C. ship's service air system

D. inertia gas system

36.In which of the areas listed would you expect to find the highest salt concentration in a flash

evaporator?

A. Distiller air ejector cooling medium

B. Saltwater heater discharge

C. First-stage internal feed box

D. Second-stage internal feed box

37.The primary task of the compressed air system is to deliver the starting air necessary for

______.

A. starting the M.E.

B. starting the emergency electric alternator

C. driving the main turbine

D. driving the turbocharger

38.What preventative maintenance should be done frequently to diesel engine starting air

receivers?

A. Drain the accumulated moisture.

B. Test the relief valves.

C. Watch the temperature to prevent fluctuations in pressure.

D. Clean the interior to remove oil and foreign matter.

39.Which of the listed characteristics can be applied to R-12 vapor?

A. It is corrosive.

B. It is odorless.

C. It is visible as a blue fog.

D. It has a

distinctive taste.

40.Which of the statements listed concerning heat transfer is correct?

A. Heat is always transferred at a constant rate.

B. Heat transfer rate increases as temperature difference increases.

C. The rate of heat transfer is not affected by temperature difference.

D. The high temperature region is known as a heat sink.

41.In the refrigeration system, a shortage of refrigerant is indicated by ______.

A. the compressor short cycling on high pressure cut out switch

B. high suction pressure

C. high head pressure

D. bubbles in the sight glass

42.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 temperature

43.An emergency bilge pumping system is provided and should be ______ of the main bilge

pumping system, according to the SOLAS 74 Convention.

A. dependent

B. independent

C. in series

D. in parallel

44.Oil Mist detectors used on large low-speed main propulsion diesel engines monitor and check

for the presence of ______.

A. fuel oil vapor at the sludge tank vent

B. unburned fuel vapors in the scavenge air receiver

C. lube oil vapors in the crank case

D. lube oil vapors in the engine room

45.The operation of paralleling two alternators requires the voltages to be ______and also in

phase.

A. zero

B. eliminated

C. different

D. equal

46. A constant output voltage from an AC generator is maintained by the ______.

A. prime mover governor

B. exciter generator

C. voltage regulator

D. reverse

power relay

47.Moisture in a D.C. motor would cause ______.

A. short circuit

B. speed up

C. slow down

D. hunting

48.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 the line.

49.______control system is one in which the control action is independent of the output.

A. Feedback

B. Negative feedback

C. Close loop

D. Open loop

50.“gauge pressure ”means ______.

A. vacuum

B. the excess of pressure above

atmosphere

C. figure on a gauge

D. any of the above

51.An operational amplifier, as used in today's consoles, has a calculated gain of 5. This means

that when the input changes ______.

A. 5 volts, the output changes 10 volts

B. 10 volts, the output changes 5 volts

C. 2 volts, the output changes 10 volts

D. 10 volts, the output changes 2 volts

52.The domestic water pump is started automatically by ________ which operates as the water

level falls to a predetermined level.

A. a level controller

B. a temperature switch

C. a floating ball

D. a pressure

switch

53.Diesel engine 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. Engine over-speed.

D. Lube oil sump level.

54.Control of the main propulsion diesel engines can be shifted from the engine room to the

wheelhouse from the ______.

A. wheelhouse control station

B. engine room control station

C. captain's office

D. chief engineer's office

55.______shall be continuously powered and shall have an automatic changeover to a stand by

power supply in case of loss of normal power supply .

A. Cooling system

B. Alarm system

C. The air conditioning installation

D. The mooring equipment

56.Ambient temperature is the ______.

A. amount of temperature rise with no load

B. temperature of the compartment where the motor is located

C. normal operating temperature, less the room temperature

D. amount of temperature developed by an operating moto

57.The additional mark ______in the Classification Certificate for Machinery means propulsion

apparatus is remotely controlled on the navigating bridge control station, and engine

assembly control station is unmanned periodically.

A. BRC

B. MCC

C. AUT-0

D. AUT-1

58.At an unsheltered anchorage the chief engineer officer shall consult with ______whether or

not to maintain an underway watch.

A. the engineer officer in charge of watch

B. the deck officer in charge of watch

C. the master

D. the chief mate

59.After he ______the test, the engineer put down the results.

A. has finished

B. finishes

C. had finished

D. would finish

60. A moving object will not accelerate or decelerate ______a force is applied to it.

A. whether

B. if

C. unless

D. till

61.All members of the engineering watch shall be familiar with assigned watch-keeping duties.

In addition, every member shall, with respect to the ship they are serving in, have knowledge of ______.

I. the use of appropriate internal communication systems.

II. the use of GMDSS.

III. the escape routes from machinery spaces.

IV. the number location and types of fire-fighting equipment in the machinery spaces.

A. I+III+IV

B. II+III+IV

C. III+IV

D. I+II+III+IV

62.This machine ______out of order, but now it works well.

A. is used to be

B. was used to be

C. used to be

D. was used to

63.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

64.Seawater may be used for drinking water ______.

A. at a maximum rate of two ounces per day

B. after mixing with an equal quantity of fresh water

C. if gather during or immediately after a hard rain

D. under no circumstance

65.Your vessel has run aground and upon taking fuel oil tank soundings. you find that a fuel

tank level has increased. You therefore should suspect ______.

A. condensation in the fuel tank

B. a crack in the hull portion of the fuel tank

C. a load of bad fuel

D. contamination from the saltwater flushing system

66.Which of the actions listed should be taken by the engineer on watch when the general alarm

is sounded continuously for 10 seconds?

A. Engine room ventilation should be started.

B. Main engines should be secured.

C. The fire pump should be started.

D. The fixed CO2 system should be activated.

67.The company should establish procedures to ensure that the ship is maintained_____ the

provisions of the relevant rules and regulations.

A. out of accordance with

B. in relation to

C. in conformity with

D. in

connection with

68.The main objective of the SOLAS Convention is to specify _____ for the construction,

equipment and operation of ships, compatible their safety.

A. at most references

B. at least references

C. maximum standards

D. minimum

standards

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：

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 marked in arrows at stairs, or corridors to

emergency

exit should be clearly sighted in dark. These marks should be smeared in fluorescence 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 leak 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! Yes, one small place leaked oil and I planned to fix it after

PSC inspection because time is limited.

PSCO: Let me check the leaking oil place and assist you to find out a solution.

Chief Engineer: Thanks.

PSCO: According to your record, you have used oily water separator to handle oily water.

I

found your inlet valve of the machine is dry and rusty. I suspected that your record is

untrue. Where is your 50 tons oily water? Did you pump out in high seas?

Chief Engineer: We pumped into another ship.

PSCO: What is the ship’s name/call sign or another identification?

Chief Engineer: I forgot.

PSCO: You can’t tell the ship’s name, call sign. And 50 tons of oily water were missing.

But

your engine log book was recorded to pump out water with handling of oil purifier.

Obviously, your record is not right. And you pump out oily water in high seas. In

compliance with MARPOL 73/78 Convention you must pay a fine.

69.What about the evacuation route in the engine room of M/V SUN?

A. There is no evacuation route in the engine room.

B. The escape route is not marked in arrows at stairs or corridors to emergency exit.

C. The escape route can be clearly sighted in dark.

D. The escape marks are not smeared in fluorescence.(荧光)

70.Which of the following is TRUE according to the dialogue?

A. There is no trouble with the pumping line.

B. The oil tank bottom is very clean without any oily brightness.

C. The engine room officers and ratings do not care for the PSC at all.

D. The PSCO used to be a Chief Engineer.

71.How did the PSCO determine the ship pumped out the oily water overboard?

A. The oily water separator has not been used for a long time.

B. The inlet valve of the oily water separator is dirty.

C. The oily water separator is inoperative

D. There is not any record in the engine room log book

72.The word “fine”in the last sentence means _____.

A. happiness

B. kindness

C. small piece

D. money

第二组：

The diesel engine is a form of internal combustion engine similar to that used in a bus. Its power is expressed as brake horsepower. This is the power put out by the engine.

Effective horsepower is the power developed by the piston in the cylinder, but some of this is lost by friction within the engine. Large diesel engines, which have cylinders nearly 3 ft in diameter, turn at the relatively slow speed of about 108 rpm. These are known as slow speed diesel engines. They can be connected directly to the propeller without gearing. Although higher power could be produced by higher revolutions, this would reduce the efficiency of the propeller, because a propeller is more efficient the larger it is and the slower it turns.

These large slow running engines are used in the larger merchant ships, particularly in tankers and bulk carriers. The main reason is their low fuel consumption. More and more of the large merchant vessels are being powered by medium-speed diesel engines. These operate between 150 and 450 rpm, therefore they are connected to the propeller by gearing. This type of engine was once restricted to smaller cargo ships, but now they are used in fast cargo liners as well as in tankers and bulk carriers. They are cheaper than slow speed diesel engines, and their smaller size and weight can result in a smaller, cheaper ship.

73.The diesel engine is similar to the gasoline engine in that _____.

A. both of them are ignited by compressed air

B. both of them are the forms of external combustion engines

C. both of them have spark plugs

D. the power is developed by the piston in the cylinder

74.Which of the following statements is FALSE?

A. The slow speed diesel engines can be connected to the propeller without reduction gearing

B. Higher power of the engine could be produced by higher rpm

C. Higher power of the engine would increase the efficiency of the propeller

D. The slower the propeller turns, the higher its efficiency will be

75.The reason why more and more of the large merchant vessels are being powered by

medium-speed diesel engines is _____.

A. they operate between 150 and 450 rpm

B. they are connected to the propeller by gearing

C. their smaller size and weight

D. they can be connected directly to the propeller without gearing

76.The brake horsepower is _____.

A. effective horsepower

B. the power put out by the engine

C. the power developed by the piston in the cylinder

D. the power developed by the propeller

三、中译英（共2题，请将答案写在答题纸上）

77.在港口国监督检查中，根据SOLAS 74，下列缺陷可以作为船舶滞留的明显理由：

1) 推进及其他关键设备，包括电气装置，不能进行正确操作

2)机舱不够清洁，舱底水中油水混合物过量, 机舱管系包括排气管绝热层有油污，舱底

水管系操作失当

3)应急发电机，应急照明，应急蓄电池组及应急开关不能正确操作使用

4)主辅舵机无法操作

78.2月17日19时40分滚装船/集装箱船XX号的主机扫气箱和1号涡轮增压器着火，冒

出浓烟。火于20时30分扑灭。主机于2月18日1时启动，船已恢复向XX港航行。

计

划抵达卸货港后打开1号涡轮增压器进行检查。某些缸的排气温度不正常，但未发现严重损坏。