單項選擇題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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1.單項選擇題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

2.單項選擇題Signaling devices required on inflatable liferafts include a(n) （）.

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

3.單項選擇題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

4.單項選擇題Prior to boarding from a vessel，a davit-launched liferaft should be well ventilated of excess（）.

A.hydrocarbon gas
B.carbon monoxide gas
C.carbon dioxide gas
D.freon gas

5.單項選擇題Personnel boarding a davit-launched liferaft from a ship should be checked to assure they are not in possession of or wearing（）.

A.oil stained shoes or clothing
B.sharp objects that may puncture or damage the liferaft
C.matches or cigarette lighters
D.drugs or paraphernalia not approved by a medical doctor