单项选择题
A.Secure all lighting to the main deck B.Provide a portable fan to blow away fumes C.Prohibit smoking in the area D.Display a black triangle during daylight hours
Before the seas get rough, it is a good safety practice...
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
Which of the fire extinguishers listed is to be weighed...
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
A carbon dioxide fire extinguisher has been partially d...
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
