海船船员考试

单选题What is NOT a function of the air supply of a covered lifeboat?（）A Provides air for engine combustionB Pressurizes water spray systemC Provides air for passenger respirationD Prevents smoke and other noxious fumes from entering craft

题目
单选题
What is NOT a function of the air supply of a covered lifeboat?（）
A

Provides air for engine combustion

B

Pressurizes water spray system

C

Provides air for passenger respiration

D

Prevents smoke and other noxious fumes from entering craft

参考答案和解析
正确答案： A
解析： 暂无解析
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相似问题和答案

第1题：

When an auxiliary boiler is panting and emitting(发出) 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


正确答案：D

第2题：

What is the function of an air receiver in the compressed air system on a ship?

A.Condenses moisture

B.Provides overpressure protection

C.Purifies the air

D.Acts as an accumulator


正确答案：D

第3题：

What is the minimum period of time that the air supply for a self-contained breathing apparatus is required to last?________.

A.10 minutes

B.20 minutes

C.30 minutes

D.90 minutes


正确答案：C
自己式呼吸器的时间是最少30分钟。

第4题：

单选题
Before hydraulic starting of an engine on a covered lifeboat，what need NOT be checked?（）
A

Fuel supply line valve

B

Pressure registered on the accumulator gauge

C

Cold-spark voltage readings test lamp

D

Engine stop control


正确答案： C
解析： 暂无解析

第5题：

What is SCM?（）

  • A、Supply Customer Management        
  • B、Support Customer Management
  • C、Supply Chain Materials              
  • D、Supply Chain Management

正确答案:D

第6题：

A safe fuel system must ______.

A.prevent engine overheating

B.have proper air/gasoline fuel mixture ratio

C.be liquid- and vapor-tight

D.supply sufficient air to the intake manifold


正确答案：C

第7题：

What is the major function of the Parliament?
It is to pass laws.
略

第8题：

What is the function of the after-coolers installed in the diesel engine air intake system?

A.Decrease the air density

B.Increase the exhaust temperature

C.Decrease the lube oil temperature

D.Increase the air density


正确答案：D

第9题：

Which of the following is a reason why Bob, a technician, should install case fans in the front of acomputer case?（）

  • A、It forces hot air out of the PC
  • B、The fan is easier to remove and clean
  • C、It forces cooler air into the power supply quickly
  • D、It forces cooler air across the motherboard

正确答案:D

第10题：

单选题
Which of the following statements describes the function of an air compressor intake filter?（）
A

Protects against suction valve float

B

Provides a positive pressure on the air inlet valves

C

Prevents lubricating oil contamination of the compressed air supply

D

Protects against the damaging effects of airborne solid particles


正确答案： D
解析： 暂无解析

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