What is an advantage of using foam in fire fighting?()

题目
单选题
What is an advantage of using foam in fire fighting?()
A

It is MOST effective on very hot oil fires where the temperatures of the liquid exceed 100°C (212°F)

B

Most foams can be used with dry chemicals to attack a fire by two methods

C

Foam is effective on combustible metal fires

D

Foam can be made with seawater or fresh water

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相似问题和答案

第1题:

A foam-type portable fire extinguisher is most useful in fighting a fire in ______.

A.generators

B.oil drums

C.the bridge controls

D.combustible metals


正确答案:B
便携式泡沫灭火器对扑灭油桶着火最有效。

第2题:

Where do you post your ()(火势控制图)?

  • A、fire control plan
  • B、fire control
  • C、fire plan
  • D、fire-fighting plan

正确答案:A

第3题:

The BEST method of applying foam to a fire is to ______.

A.spray directly on the base of the fire

B.flow the foam down a nearby vertical surface

C.sweep the fire with the foam

D.spray directly on the surface of the fire


正确答案:B
运用泡沫灭火器最好的方法是通过垂直表面流过去。

第4题:

单选题
A portable foam fire extinguisher is placed in operation by()
A

turning it upside down

B

pressing the foam lever

C

squeezing the grip handle

D

opening the hose valve


正确答案: C
解析: 暂无解析

第5题:

What is the biggest advantage of using Web services to create SOA solutions?()

  • A、 They are implemented using Java and XML
  • B、 They support a client-server programming model
  • C、 They are used to create tightly coupled applications
  • D、 They are implemented using standardized technologies

正确答案:D

第6题:

A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when ______.

A.using a 2-1/2 inch hose

B.there is an outlet for the smoke and heat

C.the fire is totally contained by the ship’s structure

D.at least two fog streams can be used


正确答案:B
烟或热量驱动走廊上的消防器,高速率雾蒸汽用于灭火,这种技术应仅用于有烟和热量的出口。

第7题:

Chief, the ()(灭火队)is ready.

  • A、fire bucket party
  • B、fire boat
  • C、fire engine
  • D、fire-fighting party

正确答案:D

第8题:

what is your position (station ) in the muster lists ,for example ,during the fire fighting ,abandon vessel ,oil pollution prevention etc ?


正确答案:Abandon vessel :boarding the lifeboat to manage and control the engine Fire fighting :manage and operate the emergency fire pmp . Oil pollution prevention ;collect the oil from the vessel or go down with the lifeboart to collect the oil from the sea .

第9题:

单选题
If you are fighting a fire below the main deck of your vessel,which action is most important concerning the stability of the vessel?().
A

Shutting off electricity to damaged cables

B

Pumping fire-fighting water overboard

C

Maneuvering the vessel so the fire is on the lee side

D

Removing burned debris from the cargo hold


正确答案: B
解析: 暂无解析

第10题:

单选题
A foam-type portable fire extinguisher is most useful in fighting a fire in().
A

generators

B

oil drums

C

the bridge controls

D

combustible metals


正确答案: C
解析: 暂无解析

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