海船船员考试

单选题（） is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve.A An air receiverB An operating valveC An automatic valveD An air distributor

题目
单选题
（） is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve.
A

An air receiver

B

An operating valve

C

An automatic valve

D

An air distributor

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相似问题和答案

第1题：

_______is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve.

A.An air receiver

B.An operating valve

C.An automatic valve

D.An air distributor


正确答案：D

第2题：

单选题
The plunger in the fuel injector pump, usually operated by a （）, is driven up and down when working.
A

crankshaft

B

camshaft

C

piston rod

D

rack and pinion


正确答案： D
解析： 暂无解析

第3题：

Because the timing of injection is crucial, _____ mounted on the camshaft, which is driven by the crankshaft are used to operate the fuel pumps, one of which is provided for each cylinder.

A.gears

B.rams

C.barrels

D.cams


正确答案：D

第4题：

单选题
What is the speed of the crankshaft in a four-stroke/cycle engine when the camshaft is turning at 750 rpm?（）
A

375 RPM

B

500 RPM

C

750 RPM

D

1500 RPM


正确答案： C
解析： 暂无解析

第5题：

单选题
Problems with the diesel engine fuel injection pump are usually caused by（）
A

improper adjustment

B

contaminated fuel

C

kinked fuel lines

D

excessive engine vibration


正确答案： C
解析： 暂无解析

第6题：

这些舱盖通常是用电力或液压驱动的。（）

  • A、These hatches are usually driven by electric or hydraulic power.
  • B、These hatch covers are usually driven by electric or hydraulic power.
  • C、These hatch covers are usually driven by electric.
  • D、These hatch covers are usually driven by hydraulic power.

正确答案:B

第7题：

单选题
For a propeller direct driven by the engine,（）.
A

the thrust pads are while metal faced on both sides

B

the thrust pads are while metal faced only on the forward side

C

the thrust pads are while metal faced only on the after side

D

intermediate shaft usually supported by a plummer block


正确答案： D
解析： 暂无解析

第8题：

Usually, emergency electricity supplies to_______on board

A.Cargo winch

B.Windlass

C.Steering gear

D.Main air compressor


正确答案：C

第9题：

单选题
这些舱盖通常是用电力或液压驱动的。（）
A

These hatches are usually driven by electric or hydraulic power.

B

These hatch covers are usually driven by electric or hydraulic power.

C

These hatch covers are usually driven by electric.

D

These hatch covers are usually driven by hydraulic power.


正确答案： A
解析： 暂无解析

第10题：

单选题
When the ship in the condition of stand-by and engine trials, usually put the engine telegraph in the （） position.
A

stand by

B

slow ahead

C

slow astern

D

B or C


正确答案： A
解析： 暂无解析

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