默认题库 - 航海出版物

单选题

A flooded lifeboat on board a vessel would adversely affect the vessel’s stability by（）.

A. increasing the righting moment
B. decreasing the vessel's displacement
C. increasing the reserve buoyancy
D. shifting the CG（center of gravity）off center

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单选题

After jacking down your liftboat you have an unexpected list.You find that the only cause of this list must be a flooded leg.Your next course of action should be to（）.

A. Jack the vessel back up to a safe height
B. Proceed on to your next destination since the list is unimportant
C. Pump out all ballast to gain reserve buoyancy
D. Notify the Coast Guard

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单选题

Many of the lights on this coast are placed so high as to be frequently obscured by（）.

A. Power
B. Tower
Cover
D. Shower

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单选题

Mariners not entering the port are（）to keep at least one mile off.

Advised
B. Reported
Complied
D. Supplied

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单选题

A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.

A. Distress position
B. Spoken words“Mayday，Mayday，Mayday”
C. Ship's name
D. Ship's call letter

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单选题

To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.

A. the actual depth
B. added to or subtracted from the charted depth
C. multiplied by the charted depth
D. divided by the charted depth

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单选题

What is the use of the books of Admiralty List of Lights and Fog Signals? Their use is to （）.

A. Mention signal stations and ice，storm，traffic and port signals
B. Give the international numbers of lights
C. Give the correction of the lights and fog signals
D. Give the information on the lights and fog signal

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单选题