单项选择题
Before attempting to put out a class “C” fire involving an electric-driven centrifugal pump, you should FIRST （）.
A.insulate your shoes
B.ground the fire hose
C.secure its power supply
D.start the fire pump
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相关考题
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单项选择题
While working in the engine room, you hear seven short blasts followed by one long blast on the ships whistle, supplemented by the same signal on the general alarm bellsYou should （）.
A.start the fire pump to charge the fire main
B.standby the main console and await orders from the engineer on watch
C.go to your fire station
D.go to your lifeboat station -
单项选择题
All personnel should be familiar with the lifeboats （）
A.boarding and operating procedures
B.maintenance schedule
C.navigational systems
D.fuel consumption rates -
单项选择题
The necessity for administering artificial respiration may be recognized by the victims （）.
A.vomiting
B.blue color and lack of breathing
C.irregular breathing
D.unconscious condition
