单项选择题

The air spaces in the floor of an inflatable liferaft will provide protection against（）.

A.asphyxiation from CO₂
B.loss of air in the sides of the raft
C.rough seas
D.cold water temperatures

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单项选择题

Signaling devices which are required on inflatable liferafts include（）.

A.a rocket shoulder rifle
B.an oil lantern
C.red flares
D.an air horn

单项选择题

Signaling devices required on inflatable liferafts include a(n) （）.

A.Very pistol
B.orange smoke signal
C.air horn
D.lantern

单项选择题

Prior to entering a davit-launched liferaft，you should make sure that（）.

A.the liferaft is well ventilated of excess carbon dioxide
B.all personnel have removed their life preservers to facilitate boarding
C.the door flap has been cut away and stowed inside the raft
D.All of the above