默认题库 - 海上救助

单选题

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 CO<sub>2</sub> canister

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单选题

Steering a motor lifeboat broadside to the sea could cause it to（）.

A. capsize
B. run smoother
C. run faster
D. sink

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单选题

Large volumes of carbon dioxide are safe and effective for fighting fires in enclosed spaces，such as in a pumproom，provided that the（）.

A. persons in the space wear gas masks
B. persons in the space wear damp cloths over their mouths and nostrils
C. ventilation system is secured and all persons leave the space
D. ventilation system is kept operating

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单选题

Inflatable liferafts are less maneuverable than lifeboats due to their（）.

A. shape
B. shallow draft
C. large sail area
D. All of the above

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单选题

In which situation could a vessel most easily capsize?（）

A. Running into head seas
B. Running in the trough
C. Running with following seas
D. Anchored with your bow into the sea

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单选题

If you must land on a beach with an oar-propelled lifeboat through a heavy surf，the recommended method is to（）.

A. keep the bow directly in toward the beach，and tow the sea anchor off the stern
B. ride in on the back of a large breaker
C. keep the bow into the seas with the sea anchor out over the bow，and row to meet the breaking waves
D. head directly into the beach by staying between the crests of the wave

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单选题

If the coxswain of your lifeboat gives the command HOLD WATER you should（）.

A. complete the stroke，raise your oar slightly，swinging the oar slightly forward，and place it in the boat
B. lift the oar in a vertical position
C. complete the stroke and hold the oar out of the water
D. dip the blade of your oar into the water vertically and hold it perpendicular to the keel line

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单选题