A.hydrocarbon gas
B.carbon monoxide gas
C.carbon dioxide gas
D.freon gas
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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
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
A.12 months
B.15 months
C.17 months
D.18 months
A.a Very pistol
B.a towing connection
C.a portable radio
D.canned milk
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
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Inflatable liferafts shall be serviced at an approved servicing facility every 12 months or not later than the next vessel inspection for certification. However，the total elapsed time between servicing cannot exceed（）.
The person assigned to command a lifeboat or inflatable liferaft on a ship shall have a list of the persons assigned to the lifeboat or liferaft. The list shall include each person’s（）.
If the liferaft capsizes，all personnel should leave the raft and（）.
The worst atmospheric condition for dispersion of H2S is（）.
The operating cord on an inflatable liferaft also serves as a（）.
Signaling devices required on inflatable liferafts include a(n) （）.
The hydrostatic release on the inflatable liferafts on a fishing vessel must be（）.
The air spaces in the floor of an inflatable liferaft will provide protection against（）.
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（）.
Each liferaft，which does not have an indicated maximum stowage height indicated on the liferaft，must be（）.