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
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相关考题
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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 -
单项选择题
When checking the liquid level in a tank, you should position yourself （）.
A.on the windward side of the opening
B.on the leeward side of the opening
C.at a right angle to the wind direction
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The stability of a vessel is normally the greatest when all fuel and water tanks are full because the （）.
A.center of gravity is lowered
B.center of buoyancy is lowered
C.reserve buoyancy is unchanged
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