單項選擇題

A fire, occurring in the windings, of an overloaded electrical motor, is considered a （）.

A.class "A" fire
B.class "B" fire
C.class "C" fire
D.class "D" fire

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單項選擇題

On a cargo vessel, fire and boat drills must be held within 24 hours of leaving port if the percentage of the crew replaced is more than （）.

A.5%
B.10%
C.25%
D.40%

單項選擇題

Which of the listed materials would be considered as a bunting class "C" fire?（）

A.Fuel oil
B.Wood
C.Celluloid
D.Electrical insulation