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


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1.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

2.單項選擇題On inflatable liferafts，the operating cord should be renewed by（）.

A.cutting the old line off and renewing same
B.an approved servicing facility ashore
C.opening the case and replacing the entire line
D.one of the ship's officers

4.單項選擇題Inflatable liferafts are provided with（）.

A.a Very pistol
B.a towing connection
C.a portable radio
D.canned milk

5.單項選擇題In evacuation from a ship，an individual without the option of a survival craft or liferaft should enter the water on the leeward side，except when（）.

A.there is burning oil on the water
B.there is a rescue craft in the area
C.water temperature is below 40°F
D.a rigid survival craft is in the area