A.displaying code letter Y (Yankee)
B.sounding five short blasts on his whistle
C.displaying code numeral 5
D.sounding one prolonged blast on his whistle
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A.remains fully obliged
B.has no obligation
C.is not necessarily
D.is exempted
A.diving operations
B.dredging
C.fishing
D.mineclearance operations
A.avoid collision
B.allow more time to assess the situation
C.be stopped in an appropriate distance
D.All of the above
A.only the sternlight of the vessel
B.a sidelight and one masthead light of the vessel
C.only a sidelight of the vessel
D.any lights except the masthead lights of the vessel
A.vessel's horsepower
B.sea state
C.number of propellers
D.vessel's displacement
最新試題
The proximity of pack ice may be indicated by（）.
Ice blink is（）.
Any vessel shall，if the circumstances of the case admit，avoid（）in a narrow channel.
In order to reduce your wake in a narrow channel you should（）.
As the weather was worsening and wind force rising to 8，my vessel（）were yawing within forty degrees of the compass.
A vessel which is being assisted by an icebreaker should indicate that she is ready to cast off the towline by（）.
A vessel is proceeding downstream in a narrow channel on the Western Rivers when another vessel is sighted moving upstream. Which vessel has the right of way? （）
A vessel proceeding along a narrow channel shall（）.
Topside icing that blocks freeing ports and scuppers（）.
When operating in an area where sea ice and icebergs are present，which statement is TRUE? （）