单项选择题
CO2 cylinders，which protect the small space in which they are stored must（）.
A.NOT contain more than 200 pounds of CO2
B.be automatically operated by a heat actuator
C.have an audible alarm
D.All of the above
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相关考题
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单项选择题
CO2 cylinders equipped with pressure actuated discharge heads will discharge automatically when（）.
A.the discharge valve is open
B.the control box glass is broken
C.pressure from the control cylinders is detected
D.the control cylinders have been completely discharged -
单项选择题
Automatic mechanical ventilation shutdown is required for CO2 systems protecting the（）.
A.machinery spaces
B.cargo compartments
C.living quarters
D.galley -
单项选择题
An inflatable liferaft should be lifted back aboard the ship by using（）.
A.the single hook at the top of the raft
B.two lines passed under the raft
C.the towing bridle
D.All of the above
