Halon extinguishes fire primarily by（）.

A、cooling

B、smothering

C、shielding of radiant heat

D、breaking the chain reaction

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更多“Halon extinguishes fire primarily by（）.”相关的问题

第1题

[单选题] Which of the following statements is true concerning Halon 1301 fire extinguishing equipment?（）

A、The agent is considered nontoxic at room temperature in low concentrations B、The agent is less effective than carbon dioxide C、Halon primarily extinguishes the fire by cooling D、The agent cannot be used on electrical fires because it leaves a residue

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第2题

[单选题] Inspection of a Halon extinguisher involves checking the hose，handle，nozzle，and（）.

A、sight glass B、weighing the extinguisher C、service technicians report D、last date it was charged

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第3题

[单选题] Halon extinguishes fire primarily by（）.

A、cooling B、smothering C、shielding of radiant heat D、breaking the chain reaction

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第4题

[] Due to the hazards involved with Halon extinguishers on a ship，the size II extinguisher may only be used（）.

A、A.outside B、B.on class C fires C、C.in an emergency D、D.on class B fires