海船船员考试题库2022船舶动力装置题库考前点睛模拟考试178

1. [单选题]船舶动力装置往往以推进装置的类型进行分类，可分为（）。

A. 蒸汽动力装置、燃气动力装置^{(gas power plant)}、核动力装置
B. 低速柴油机装置、中速柴油机装置、高速柴油机装置
C. 汽轮机装置、柴油机装置
D. A+B

2. [单选题]排气阀阀杆磨损超过标准要求时，可采用（）工艺修复阀杆。也可以采用喷涂或喷焊工艺修复。

A. 镀铬或镀铁
B. 焊接
C. 堆焊
D. 镀铁

3. [单选题]Fuel is delivered into the combustion space by （）.

A. a cooling system
B. a lubricating system
C. an electric system
D. an injection system

4. [单选题]Modern engines （） exhaust gas driven turbo-chargers to supply pressurized fresh air for scavenging and supercharging.

A. are made of
B. are made from
C. make use of
D. are used to

5. [单选题]The cap and new shell are tightened up and then removed and the thickness of the wire measured by （）.

A. a bridge gauge
B. a micrometer
C. a thermometer
D. a indicator

6. [单选题]The crank chamber oil （）.

A. can be recovered
B. is only supplied to cylinders
C. only feeds the main bearing
D. is a kind of detergent

7. [单选题]Excessive vibration of an automatically fired auxiliary boiler can be caused by （）

A. air or water in the furnace
B. combustion pulses
C. fuel oil pump failure
D. flame failure

8. [单选题]A three-way thermostatic control valve regulates the diesel engine cooling water temperature by passing a portion of the water （）.

A. around the engine
B. around the cooler
C. to the expansion tank
D. overboard

9. [单选题]What is the crank angle between any two crank throws in the firing order of a four-stroke/cycle, in line, eight cylinder diesel engine?（）

A. 45
B. 60
C. 90
D. 100

10. [单选题]Proper atomization of fuel in diesel engine combustion chambers will （）.

A. affect the injection pressure
B. improve combustion
C. reduce compression pressure
D. decrease power output

查看答案&解析 查看所有试题

本文链接：https://www.51bdks.net/show/7wj079.html