單項(xiàng)選擇題In a narrow channel, a signal of intent which must be answered by the other vessel, is sounded by a vessel（）.

A.meeting another head-on
B.crossing the course of another
C.overtaking another
D.Any of the above


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1.單項(xiàng)選擇題In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so（）.

A.at as small an angle as possible
B.as nearly as practical at right angles to the general direction of traffic flow
C.only in case of an emergency or to engage in fishing within the zone
D.never

2.單項(xiàng)選擇題In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so（）.

A.only in case of an emergency or the engage in fishing within the zone
B.as nearly as practical at right angles to the general direction of traffic flow
C.at as small an angle as possible
D.only to anchor within the zone

3.單項(xiàng)選擇題In a weather report, position good means that the position is（）.

A.a good one
B.reliable
C.is easy to be fixed
D.obtainable

4.單項(xiàng)選擇題In a weather report,Z stands for（）.

A.zone time
B.zulu time
C.Greenich Mean Time
D.zone standard time

5.單項(xiàng)選擇題In admiralty sailing directions, bands is the word used to indicate（）marking.

A.horizontal
B.vertical
C.diagonal
D.vertical or diagonal