單項(xiàng)選擇題

What are the most important reasons for using water fog to fight fires?（）

A.Smothers burning surfaces，organically destroys fuel
B.Cools fire and adjacent surfaces，provides protective barrier
C.Reaches areas not protected by steam or CO₂ smothering systems
D.Allows fire to be attacked from leeward，saturates liquid surfaces

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單項(xiàng)選擇題

Weight is considered during the periodic required inspection and servicing of（）.

A.CO₂ (carbon dioxide) fire extinguishers
B.foam fire extinguishers
C.water (stored pressure) fire extinguishers
D.All of the above

單項(xiàng)選擇題

Water fog from an all-purpose nozzle may be used to（）.

A.fight an electrical fire
B.fight a magnesium fire
C.eliminate smoke from a compartment
D.All of the above

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What are the most important reasons for using water fog to fight fires?（）

你可能感興趣的試題

Weight is considered during the periodic required inspection and servicing of（）.

Water fog from an all-purpose nozzle may be used to（）.

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