A、hydrocarbon gas
B、carbon monoxide gas
C、carbon dioxide gas
D、freon gas
更多“Prior to boarding from a vessel，a davit-launched liferaft should be well ventilated of excess（）.”相关的问题
A、A.to allow port Authorities to board B、B.allowing port Authorities to board C、C.to allow port Authorities boarding D、D.allowing port Authorities to be boarded
A、no earlier than 24 hours prior to loading B、no later than 24 hours prior to loading C、anytime prior to loading D、weekly
A、any list，no matter where it is posted，shall be removed prior to ending his watch by the OOW B、the vessel should not be removed C、any and all lists on board the vessel should be taken off D、the inclination of the vessel should be corrected prior to ending his watch by the OOW
A、A. Receiving the person who comes on board to do their business. B、B. Receiving the persons who comes on board to visit. C、C. Receiving the persons who comes on board to do the job. D、D. Receiving the persons who comes on board to look around the ship.
A、a lifeboat drill be held within 12 hours prior to departure B、fire pumps be tested by starting within 12 hours prior to departure C、the emergency generator and lighting system be tested by starting and operating within 12 hours prior to departure D、the entire steering gear be tested within 12 hours prior to departure
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
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