单项选择题
A.After each use B.When the air temperature exceeds 90°F C.Every 6 months D.Every 12 months
When loading or discharging dry mud or cement，crew memb...
单项选择题When loading or discharging dry mud or cement，crew members should use facial respirator masks and（）.
A.goggles B.ear plugs C.soft-soled boots D.fireman's outfit
When joining the female coupling of the fire hose to th...
单项选择题When joining the female coupling of the fire hose to the male outlet of the hydrant，you should make sure that the（）.
A.threads are lubricated B.nozzle is attached to the hose C.female coupling has a gasket D.hose is led out
When inspecting a tank barge to see that it has all the...
单项选择题When inspecting a tank barge to see that it has all the required fire extinguishers and other safety items aboard，which of the following is the best source for determining what is required?（）
A.The supervisor in charge of the dock to which the barge is tied up B.Part 38 of the Rules and Regulations for Tankers C.The Certificate of Inspection of the barge D.The local fire marshal
