单项选择题

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

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单项选择题

A fire in an electrical generator is considered to be （）.

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

单项选择题

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

单项选择题

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