單項(xiàng)選擇題

The sprinkler system of a survival craft is used to（）.

A.cool the craft in a fire
B.cool the engine
C.spray oil on the sea to calm it
D.spray personnel during a fire

你可能感興趣的試題

The spread of fire is prevented by（）.

A.cooling surfaces adjacent to the fire
B.leaving combustibles in the endangered area
C.increasing the oxygen supply
D.All of the above

單項(xiàng)選擇題

The spread of fire is NOT prevented by（）.

A.shutting off the oxygen supply
B.cooling surfaces adjacent to the fire
C.removing combustibles from the endangered area
D.removing smoke and toxic gases by ensuring adequate ventilation

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