單項(xiàng)選擇題Which of the listed classes of fire is considered as one involving electrical equipment?()

A.Class "A"
B.Class "B"
C.Class "C"
D.Class "D"


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1.單項(xiàng)選擇題Besides heat, fuel, and oxygen, which of the following is necessary for a fire to exist?()

A.Chain reaction
B.Thermal action
C.Chemical occlusion
D.Pyrotechnical reaction

2.單項(xiàng)選擇題A fire and boat drill on a tank vessel shall, by regulation, include ().

A.starting the fire pumps
B.checking firemans outfits and other personnel rescue equipment
C.checking relevant communications equipment
D.All of the above

3.單項(xiàng)選擇題A fire in an electrical generator is considered to be ().

A.Class "A"
B.Class "B"
C.Class "C"
D.Class "D"

4.單項(xiàng)選擇題A fire may be spread by which of the following means?()

A.Conduction of heat to adjacent surfaces
B.Direct radiation
C.Convection
D.All of the above

5.單項(xiàng)選擇題If emergency welding repairs must be made to the upper area of a fuel tank, the tank and/or adjacent compartments may need to be ()

A.gas freed
B.inerted
C.filled with water
D.all of the above as necessary