单项选择题
Which operation should be done when launching an inflatable liferaft by hand?（）
A.Open the liferaft casing
B.Turn the valve on the CO2 cylinder to start inflation
C.Make sure the operating cord is secured to the vessel before throwing it over the side
D.After inflation，detach operating cord from liferaft
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相关考题
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单项选择题
Which of following data is NOT painted on the bow of a lifeboat?（）.
A.Number of persons allowed
B.Name of the vessel
C.Weight of the boat
D.Home port -
单项选择题
When whistle signals are used for launching lifeboats，one short blast means（）.
A.use the float-free method only
B.lower all boats
C.raise all boats
D.drill is over，secure all boats -
单项选择题
When should you use distress flares and rockets?（）
A.Only when there is a chance of their being seen by rescue vessels
B.At half-hour intervals
C.At one-hour intervals
D.Immediately upon abandoning the vessel
