单项选择题
Before the seas get rough, it is a good safety practice to （）.
A.secure loose gear
B.move quickly about the ship
C.increase lighting
D.shutdown auxiliary equipment
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相关考题
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单项选择题
Which of the fire extinguishers listed is to be weighed annually and sent ashore for recharging if the weight loss exceeds 10% of the weight of a full charge?（）
A.Foam
B.Soda acid
C.Dry chemical
D.Carbon dioxide -
单项选择题
A carbon dioxide fire extinguisher has been partially discharged, and should be immediately （）.
A.tagged and restowed properly in its rack
B.weighed and the charge loss recorded
C.given to the chief engineer for recharging
D.tagged "empty" and stowed separately from charged extinguishers -
单项选择题
Which of the listed fire extinguishers cannot be easily recharged aboard ship?（）
A.Soda acid
B.Carbon dioxide
C.Dry chemical
D.Cartridge-operated Foam
