單項(xiàng)選擇題You are about to cross a narrow channel when you see an approaching vessel that can only be navigated safely within the channel.You should（）.

A.cross the channel as you are the stand-on vessel
B.cross only if the vessel in the channel is approaching on your port side
C.not cross the channel if you might impede the other vessel
D.sound the danger signal


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1.單項(xiàng)選擇題Between April and November, squalls（）as Sumateras（）in Malacca Strait in the late afternoon or overnight and（）E to affect the W coast of Malaysia and Singapore Island.

A.known, developing, move
B.known, developed, move
C.known, develop, moving
D.known, develop, move

2.單項(xiàng)選擇題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

3.單項(xiàng)選擇題Who can suggest changes to the SMS?（）

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

4.單項(xiàng)選擇題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

5.單項(xiàng)選擇題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