單項選擇題Generally,what is used to inflate liferafts?().

A.non-toxic gas
B.Oxygen
C.Hydrogen
D.Helium


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題Each liferaft,which does not have an indicated maximum stowage height indicated on the liferaft,must be().

A.limited to carry no more than 10 persons
B.stowed not more than 59 feet above the lightest waterline
C.stowed in quick release racks
D.inspected every six months

2.單項選擇題Each lifebuoy shall be marked in block capitals of the Roman alphabet with()of the ship.

A.the call sign and name
B.the official number and name
C.the port of registry and name
D.the port of registry and official number

3.單項選擇題As a vessel sinks to a depth of 15 feet,the hydrostatic trip releases the liferaft container from its cradle by().

A.breaking the weak link
B.releasing the tie-down strap
C.pulling the operating cord
D.releasing the CO2 canister

4.單項選擇題An inflatable liferaft should be manually released from its cradle by().

A.cutting the straps that enclose the container
B.removing the rubber sealing strip from the container
C.loosening the turnbuckle on the securing strap
D.pushing the button on the hydrostatic release

5.單項選擇題An inflatable liferaft is thrown into the water from a sinking vessel. What occurs automatically after the painter trips the CO2 bottles to inflate the raft?().

A.The sea anchor deploys
B.The floor inflates
C.If upside down,the craft rights itself
D.The painter detaches from the raft