单项选择题

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

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单项选择题

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

单项选择题

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

单项选择题

An inflatable liferaft is hand-launched by（）.

A.pulling a cord
B.cutting the wire restraining bands
C.removing the rubber packing strip
D.throwing the entire container overboard