單項(xiàng)選擇題Any ship damping a pipe could（）an immedidate danger of fire.

A.meet
B.face
C.be in front of
D.follow


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1.單項(xiàng)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

2.單項(xiàng)選擇題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

3.單項(xiàng)選擇題As compared to carbon dioxide,dry chemical has which advantage?（）.

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

4.單項(xiàng)選擇題As oil pipe line connections were broken,（）quantity of oil was caused to spill onto the wharf and into the dock water.

A.a not knowing
B.an unknowing
C.an unknown
D.a not known

5.單項(xiàng)選擇題At the required fire drill conducted aboard a vessel, all person must report to their stations and demonstrate their ability to perform the duties assigned to them（）.

A.by the toolpusher
B.in the station bill
C.by the person conduction the drill
D.at the previous safety meeting