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
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相关考题
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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 -
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 -
单项选择题
When fire pumps are used for other than firefighting service，each pipe connecting the other service (except for branch lines used for deck washing) must have a（）.
A.check valve installed in the line
B.shut off valve at a manifold near the pump
C.quick disconnect union within ten feet of the pump
D.regulator in the line set at 125 psi
