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
单项选择题 A fire in an electrical generator is considered to be ().
单项选择题 A fire may be spread by which of the following means?()
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 ()