單項選擇題

As a vessel sinks to a depth of 15 feet, the hydrostatic trip releases the life raft 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

你可能感興趣的試題

As an extinguishing agent,foam（）.

A.couducts electricity
B.should be directed at the base of the fire
C.is most effective on burning gases which are flowing
D.extinguishes by cooling oil fires blow ignition temperature

單項選擇題

As compared to carbon dioxide,dry chemical has which advantage?（）.

A.Cleaner
B.Effective
C.Greater range
D.More cooling effect

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As a vessel sinks to a depth of 15 feet, the hydrostatic trip releases the life raft container from its cradle by（）.

你可能感興趣的試題

As an extinguishing agent,foam（）.

As compared to carbon dioxide,dry chemical has which advantage?（）.

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