齐齐哈尔市第一中学39805期轮机英语

2021年1月19日发(作者：边连宝)
中华人民共和国海事局

2006
年第
1
期海船船员适任证 书全国统考试题
(
总第
39
期
)
科目：轮机英语

试卷代号：
805
适用对象：无限、近 洋航区
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.

The rotating range of the low speed diesel engine is usually lower than ______.
A.
100 rpm
B.
200 rpm
C.
300 rpm
D.
500 rpm
2.

Which of the following conditions may need to be reduced when operating a large, low-speed,
main propulsion, diesel engine at low loads?
A.
Injection pressures.
B.
Control air supply pressure.
C.
Cooling water flow through after- coolers.
D.
Lube oil temperature.
3.

Suppose the rated capacity of the main engine of a ship is 10,000 KW. at 100 rated rpm, then
when at 80 rpm its capacity should be ______.
A.
800 KW
B.
5120 KW
C.
6400 KW
D.
4180 KW
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.
outside the space concerned
C.
the throttle station
D.
within the fire room
5.

Excessive clearances in the main or crank-pin bearings will sometimes be indicated by ______
before any bearing knock is heard.
A.
loss of flow in the fuel system
B.
loss of pressure in the air system
C.
loss of flow in the lubricating system
D.
loss of pressure in the lubricating system
6.

Which of the following statements is correct regarding an oil with a high viscosity index?
A.
A large change of viscosity occurs with a minor change in temperature.
B.
No change in viscosity occurs with any change in temperature.
C.
Very little change in viscosity occurs with a significant
（显著的）
change in temperature.
D.
The viscosity of the oil increases with an increase in temperature.
7.

The lubricating pipes and ducts should be blown out with ______.
A.
the atmosphere
B.
the fresh water
C.
the compressed air
D.
the chemical compounds
8.

______, remedies must be taken to stop it as early as possible.
A.
Any surge occurs
B.
Any surge occurred
C.
Should any surge occur
D.
Should any surge occurring
9.

Which of the following conditions can cause above normal air temperature to develop in the
intake manifold of a four- stroke/cycle, turbo-charged, diesel engine?
A.
Clogged air intake filters.
B.
Piston blow-by.
C.
A defective after-cooler.
D.
Faulty exhaust valves.
10.

The power generated in the turbine must ______that required by the compressor.
A.
be less than
B.
be larger than
C.
be as large as
D.
not be so large as
11.

When the propeller blades are integral with the hub, the propeller is called a ______.
A.
built up propeller
B.
solid propeller
C.
controllable pitch propeller
D.
suction back propeller
12.

The most important factor in engine performance is the actual power output at the end of the
crankshaft available for doing work. This is known as ______.

A.
indicated horsepower
B.

brake horsepower

C.
net horsepower
D.
friction horsepower
13.

Grind the ______.
A.
keyway
B.
shaft
C.
packing
D.
valve
14.

In a ______the center screw is driven and the outer screws idle.
A.
single screw pump
B.
double- screw pump
C.
triple screw pump
D.
centripetal pump
15.

Which of the following pumps belongs to centrifugal pump?
A.
reciprocating pump
B.
screw pump
C.
diffuser pump
D.
water-ring pump
16.

During compressor
’
s running the accumulated moisture in the separators must be______.
A.
drained off
B.
collected
C.
sent to the crankcases
D.
separated with oil
17.

The emergency bilge suction valve is typically used ______.
A.
to inject cleaning additives when the bilges are extremely dirty
B.
when the main condenser becomes fouled, in order to provide additional cooling water
circulation
C.
to connect the rose box to the independent bilge suction
D.
if the bilges become flooded and they can not be emptied by any other means
18.

The valve best suited for throttling gas or liquid flow in a pipeline is the ______.
A.
gate valve
B.
globe valve
C.
check valve
D.
plug cock
19.

The clutch band of a constant tensioning mooring winch must be set up tight enough to drive the
winch drum and should slip only when ______.

A.
excessive loads are placed on the winch
B.
minimum pull is being exerted by the winch
C.
automatic operation of the winch is desired
D.
wire is being retrieved at the maximum rate
20.

Improper maintenance of an automatic auxiliary boiler oil burner could result in ______.
A.
fuel pump failure
B.
fan motor failure
C.
increased feed-water consumption
D.
decreased boiler efficiency
21.

For proper operation, auxiliary boiler feed water must have which of the following characteristics?
A.
High oxygen concentration.
B.
Low pH.
C.
Proper alkalinity.
D.
All of the above.
22.

The ______has a water damp ring.
A.
purifier
B.
oil/water separator
C.
incinerator
D.
distiller
23.

The operating water is supplied under the ______of an oil separator.
A.
sliding bowl bottom
B.
bowl hood
C.
bowl
D.
filter units
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24.

An oil water monitor is required in order to measure ______.
A.
the oil content in water
B.
the water content in fuel oil
C.
the water level in bilge well
D.
the oil level in bilge well
25.

Here some oil in the oily water separator, as a result of its lower ______, will separate and rise
into the oil collection space.
A.
temperature
B.
viscosity
C.
density
D.
velocity
26.

If an oil spill occurs on deck, you should ______.
A.
cover the area with foam
B.
cover the area with absorbent material
C.
wash down immediately with a fire hose
D.
wash down immediately with an oil dispersing solvent
27.

______are used for cargo handling.
A.
Cranes
B.
Mooring winches
C.
Windlasses
D.
Foreman
28.

Steering gears can be arranged with hydraulic control equipment known as a
electrical control equipment.
A.
telemeter
B.
telemanometer
C.
telemotor
D.
telemometer
29.

In the hydraulic system, _____ is the power unit.
A.
oil pump
B.
control valve
C.
hydraulic motor
D.
fittings
30.

With a vacuum boiling evaporator, the remainder of sea water fed to the evaporator is pumped out
by ______.
A.
a brine pump
B.
an air ejector
C.
a feed pump
D.
distillate pump
31.

When a flash-type evaporator is to be secured for an extended period of time, the entire unit
should be drained, cleaned, and ______.
A.
completely filled with saltwater
B.
filled with de-scaling compound
C.
tightly closed to exclude air
D.
vented to the atmosphere
32.

The starting air bottle should be pumped up to maximum pressure by the ______before start of the
engine.
A.
air compressor
B.
refrigeration compressor
C.
vacuum pump
D.
purifier
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.

The temperature differential occurring between the inlet temperature of the fluid to be cooled and
the outlet temperature of the cooling medium in a shell-and-tube heat exchanger is greatest in
which of the flow designs listed?
A.
Cross
B.
Parallel
C.
Counter
D.
Circular
35.

Zinc rods are installed in the refrigeration system ______.
A.
liquid strainer
B.
liquid receiver
C.
saltwater condenser
D.
evaporator
36.

In extreme weather conditions, either hot or cold, control of the air conditioning plant presents
______difficulties.
A.
few
B.
little
C.
a little
D.
less
37.

The temperature at which water vapor in the atmosphere begins to condense is called the ______.
A.
dew point temperature
B.
condensation temperature
C.
psychometric temperature
D.
absolute humidity temperature
38.

When securing an AC generator, you should FIRST ______.
A.
open the generator circuit breaker
B.
switch the voltage regulator to
‘
manual'
C.
decrease the field excitation to minimum
D.
reduce the load on the unit
39.

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
40.

The flame safeguard control system of a large automatic auxiliary boiler will provide fuel shut off
in the case of high ____________.

A.
water

B.
voltage
C.
fuel pressure
D.
steam pressure
41.

For the proper control of the air temperature in an air conditioning system using chilled water
circulation, which of the listed conditions should remain constant regardless of load changes?

A.
Chilled water system supply temperature.

B.
Chilled water system return temperature.
C.
Compressor discharge temperature.
D.
Compressor suction pressure..

42.

Usually the panels are interlocked with ______so that the devices can be made dead before the
doors are opened.
A.
protective earth
B.
isolators
C.
ground switch
D.
circuit-breakers
43.

______is the actual value of the controlled condition.
A.
Desired value
B.
Set value
C.
Measured value
D.
Deviation
44.

The most common method of dealing with spilled oil on the water is the use of ______.
A.
straw
B.
booms
C.
skimmers
D.
chemical dispersants
45.

A manometer is used to measure ______.
A.
pressure
B.
temperature
C.
volume
D.
specific gravity
46.

An ohmmeter can be used to measure ______.
A.
current flow in a circuit
B.
voltage between two points in a circuit
C.
circuit continuity
D.
power
47.

The electrolyte in a lead-acid storage battery consists of distilled water and ______.
A.
hydrogen chloride
B.
calcium chloride
C.
sulfuric acid
D.
muriatic acid
48.

Remote control means that______.
A.
the system is manned manually
B.
the system is situated remotely from the operator
C.
the system is controlled automatically
D.
all the above
49.

Electrically operated safety devices on auxiliary diesel engines function to stop the engine by
______.
A.
increasing the volume of intake air
B.
shutting off the fuel supply
C.
increasing the engine back pressure
D.
over-speeding the engine
50.

Which of the materials listed is used as the dynamic seal material on mechanical seals installed on
most centrifugal pumps used in water service?
A.
Copper
B.
Copper and carbon

C.
Carbon

D.
Bronze
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