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單項(xiàng)選擇題

Which fire detection system is actuated by sensing a heat rise in a compartment?（）

A.Manual fire detection system
B.Automatic fire detection system
C.Smoke detection system
D.Watchman's supervisory system

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單項(xiàng)選擇題

Which extinguishing agent is the best for use on electrical fires?（）

A.Foam
B.CO₂
C.Dry chemical
D.Water fog

單項(xiàng)選擇題

Which extinguishing agent is recommended in the Chemical Data Guide for use on a carbon disulfide fire?（）

A.Alcohol foam
B.Dry chemical
C.Chemical foam
D.Water fog

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