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Under what conditions would the use of a Class C fire exting

题目
单选题
Under what conditions would the use of a Class C fire extinguisher be preferable to a Class A extinguisher? C类火灾灭火器比A类灭火器更适用于以下哪一种情况？（）
A

A .When the fire involves paper products当火灾和纸制品有关时

B

B .When the fire is caused by flammable products当火灾由易燃物造成

C

C .When the fire involves electrical equipment当火灾和电器设备有关时

D

D .When the fire is in an enclosed area当火灾发生在一个封闭空间内

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相似问题和答案

第1题：

A fire pump may be used for other purposes if ______.

A.the other services are run off a reducing station with a pressure gage

B.one of the required pumps is kept available for use on the fire main system at all times

C.no relief valves are installed

D.all of the above conditions are met


正确答案：B

第2题：

Under what conditions would the use of a Class C fire extinguisher be preferable to a Class A extinguisher? C类火灾灭火器比A类灭火器更适用于以下哪一种情况？（）

  • A、A .When the fire involves paper products当火灾和纸制品有关时
  • B、B .When the fire is caused by flammable products当火灾由易燃物造成
  • C、C .When the fire involves electrical equipment当火灾和电器设备有关时
  • D、D .When the fire is in an enclosed area当火灾发生在一个封闭空间内

正确答案:C

第3题：

A fire in a pile of dunnage would be classified as a _____.

A.class A

B.class B

C.class C

D.class D


正确答案：A

第4题：

问答题
Although there is disagreement within the scientific community about the extent of global warming, humans would be playing with fire if we were to ignore the danger it poses .As individuals, we can reduce our reliance on fossil fuels, use less electricity and adopt lifestyles that minimize the use of natural resources. On the governmental level, most of the world’s industrialized nations have pledged to cut gas emissions under the Kyoto Agreement in 1997.

正确答案：
虽然科学界对全球变暖的影响程度尚有歧见,但若人类对温室效应造成的危险置之不理,无异于玩火自焚。为避免温室效应加剧,从个人角度来看我们可以做的就是降低对化石燃料的依赖、减少用电,并采取最不耗损自然资源的生活方式。在政府这个层面,世界大部份的工业化国家,已在一九九七年所签定的京都议定书中,宣誓将做到气体排放减量。
解析： 暂无解析

第5题：

单选题
A class "B" fire would most likely occur in the （）.
A

main switchboard

B

engine room bilge

C

breathing compartment

D

electric fresh water transfer pump


正确答案： B
解析： 暂无解析

第6题：

It is hard for the young people to imagine what severe conditions their parents once lived under.

A:sincere
B:hard
C:strict
D:tight

答案：B
解析：
本句意思：对于年轻人来说，想象他们的父母曾经生活在什么样的艰苦条件下是很困难 的。severe意为“严峻的”，与hard（困难的）意思相近。。sincere真诚的；strict严格的；tight牢 固的。

第7题：

You work as an application developer at Certkiller .com. Certkiller .com has asked you to develop an application that monitors and controls the activities of a Windows service.You need to use the appropriate class to meet Certkiller .com’s requirements. What should you do？（）

  • A、 Use the ServiceBase class.
  • B、 Use the ServiceInstaller class.
  • C、 Use the ServiceManager class.
  • D、 Use the ServiceController class.

正确答案:D

第8题：

A fire involving trash and paper waste would be classified as a ______.

A.class A

B.class B

C.class C

D.class D


正确答案：A

第9题：

单选题
A class "D" fire would be considered as burning （）.
A

wood

B

oil

C

electrical equipment

D

magnesium


正确答案： C
解析： 暂无解析

第10题：

单选题
For which of the listed classes of fire combinations would carbon dioxide be most suitable as the extinguishing agent （）.
A

Class A and class B

B

Class B and class C

C

Class A and class C

D

Class C, class D, and class E


正确答案： B
解析： 暂无解析

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