海船船员考试

单选题If a CO2 fire extinguisher is not readily available, which of the listed fire extinguishers would be best suited to combat a small electrical fire in a switchboard?（）A Dry chemicalB HalonC Low velocity fogD Steam

题目
单选题
If a CO2 fire extinguisher is not readily available, which of the listed fire extinguishers would be best suited to combat a small electrical fire in a switchboard?（）
A

Dry chemical

B

Halon

C

Low velocity fog

D

Steam

参考答案和解析
正确答案： B
解析： 暂无解析
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相似问题和答案

第1题：

How do you operate a portable CO2 fire extinguisher?______.

A.Point the horn down

B.Turn cylinder upside-down

C.Break the rupture disc

D.Pull pin, squeeze grip


正确答案：D
你如何操作CO2灭火器？拉出锁销，挤压把手

第2题：

This fire extinguisher is to be used only in case of（）.

Aurgency

Bemergency

Cimmediacy

Dcrisis


B
略

第3题：

A portable dry chemical fire extinguisher discharges by ______.

A.gravity when the extinguisher is turned upside down

B.pressure from a small CO2 cartridge on the extinguisher

C.air pressure from the hand pump attached to the extinguisher

D.pressure from the reaction when water is mixed with the chemical


正确答案：B
便携式干粉灭火器通过灭火器内二氧化碳小气瓶的压力来排放药剂。

第4题：

An administrator sees that smoke is coming from the UPS. Which of the following should they doFIRST？（）

  • A、Use a Class A fire extinguisher.
  • B、Evacuate personnel.
  • C、Install additional fans in the UPS
  • D、Backup the servers.

正确答案:B

第5题：

Close all fire doors and use the （）（干粉灭火器）.

  • A、dry powder extinguisher
  • B、foam extinguisher
  • C、CO2 extinguisher
  • D、portable extinguisher

正确答案:A

第6题：

In order to discharge a CO2 portable fire extinguisher, the operator must FIRST ______.

A.invert the CO2 extinguisher

B.squeeze the two trigger handles together

C.remove the locking pin

D.open the discharge valve


正确答案：C
为了施放便携式CO2灭火器，操作者必须首先拔除锁定销。

第7题：

Fire in the cabins. Close all fire doors and use the （）powder extinguisher.

  • A、dry
  • B、wet
  • C、foam
  • D、portable

正确答案:A

第8题：

An engine compartment gasoline fire requires which type of extinguisher?______.

A.Carbon dioxide

B.Dry chemical

C.Foam

D.All of the above


正确答案：D
机舱油汽火灾要求哪一种灭火器（扑灭）？CO2，干粉，泡沫

第9题：

（）is best for electrical fire.

  • A、Dry extinguisher
  • B、Power extinguisher
  • C、A+B
  • D、CO2 extinguisher

正确答案:A

第10题：

单选题
You should conduct a sector search under which of the following circumstances（）.
A

The search target is sighted and then lost

B

More than one vessel is available for a search

C

The search object is a target that will be readily detected by radar

D

An aircraft is available to assist a surface vessel


正确答案： A
解析： 暂无解析

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