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单选题A class B fire is most successfully fought by().A preventing oxygen from reaching the burning materialB cooling the burning material below its ignition temperatureC using the extinguishing agent to make the burning material fire-resistantD using the ex

题目
单选题
A class B fire is most successfully fought by().
A

preventing oxygen from reaching the burning material

B

cooling the burning material below its ignition temperature

C

using the extinguishing agent to make the burning material fire-resistant

D

using the extinguishing agent to absorb the heat

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相似问题和答案

第1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2题:

A large oil fire on the deck of a ship can be fought most effectively with ______.

A.dry chemical

B.foam

C.high-velocity fog

D.water (cartridge-operated)、


正确答案:B
甲板上大量由油水引起的火灾最有效的扑救方法是泡沫。

第3题:

Which of the following statements is true?

A. The author's father built a bonfire on VE Day.

B. The author's father had fought in the First World War.

C. The author's father had fought in the Second World War.

D. The author's father threw two chairs on the fire to keep it going.


正确答案:B
42.文章最后一段第二行,作者说他的父亲曾经参加过第一次世界大战。但并未提及他是否参加了“二战”。选项 B是正确的。

第4题:

单选题
A large oil fire on the deck of a ship can be fought most effectively with().
A

dry chemical

B

foam

C

high-velocity fog

D

water


正确答案: B
解析: 暂无解析

第5题:

单选题
A class "C" fire is burning ().
A

diesel oil

B

magnesium

C

dunnage

D

electrical insulation


正确答案: D
解析: 暂无解析

第6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7题:

All portable fire extinguishers must be capable of being ______.

A.carried by hand to a fire

B.carried or rolled to a fire

C.recharged in the field

D.used on class “B” fire


正确答案:A
所有便携式灭火器必须能够被用手携带到火灾(现场)。

第8题:

The class of fire on which a blanketing effect is essential to extinguish the fire is

A.Class 'A'

B.Class 'B'

C.Class 'C'

D.Class 'D'


正确答案:B

第9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10题:

单选题
What is the most vulnerable part of the fire main system on board an offshore rig?()
A

The fire pump

B

Exposed hard piping

C

The hydrant valve

D

The fire hose


正确答案: D
解析: 暂无解析

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