单项选择题

A.Your speed must be reduced to bare steerage waysB.A l……

You are underway in thick fog.You have not determined if risk of collision exists.Which statement is true?（）

A.Your speed must be reduced to bare steerage ways
B.A look-out is not required if the radar is on
C.The radar should always be kept on a short-range scale
D.Fog signals are only required when a vessel is detected by radar

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单项选择题Who can suggest changes to the SMS?（）

A.The designated person
B.The captain
C.All officers and crew
D.All senior officer

单项选择题Which statement is TRUE when comparing cold and warm fronts?（）

A.Cold fronts are more violent and of shorter duration
B.Cold fronts are milder and last longer
C.They are very similar with the exception of wind direction
D.Warm fronts are more violent and of longer duration

单项选择题The principal purpose of adjustment of the magnetic compass is to eliminate（）as far as possible.

A.variation
B.compass error
C.deviation
D.earth‟s magnetic force

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A.obey the master‟s
B.obey the pilot‟s
C.bring the rudder to a position midway between the two conflicting orders
D.ask the pilot if he relinquishes control

单项选择题（）is used for lifting cargo.

A.A mooring winch
B.A windlass
C.A deck crane
D.A lifeboat