A.is ready to use but vessels must stand clear
B.is ready to use and vessels may approach
C.cannot be made ready immediately and vessels shall stand clear
D.cannot be made ready immediately but vessels may approach
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A.ready for entrance
B.ready for entrance，but gates cannot be closed completely
C.being made ready for entrance
D.not ready for entrance
A.enter the pack on the windward side where there is a well defined ice edge
B.trim to an even keel or slightly down by the bow to take maximum benefit of the ice reinforcement
C.take maximum advantage of coastal leads caused by offshore winds
D.look for areas of rotten ice and enter perpendicular to the ice edge
A.Rudder action will become more effective
B.The vessel's list will change
C.The vessel's trim will change
D.An increase in speed will occur
A.decrease in capabilities of radar
B.decrease in displacement
C.adverse effect on trim
D.loss of stability
A.back your engines
B.stop your engines and drift
C.answer with one prolonged blast
D.sound the danger signal
最新試題
All persons or vessels within the lock area，including the lock approach channels，come under the authority of the（）.
Small floes of rough，hummocky sea ice capable of damaging a vessel（）.
A vessel shall be deemed to be overtaking when she can see at night（）.
Two vessels are abreast of each other and passing port to port in a confined waterway. What should you expect as your bow approaches the screws of the other vessel? （）
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 the bank of a river or channel has the tendency to（）.
A tug’s horsepower available at the shaft is（）.
Topside icing that blocks freeing ports and scuppers（）.
Topside icing decreases vessel stability becauseit increases（）.
A vessel which is being assisted by an icebreaker would display a flag hoist consisting of the code numeral 4 when the vessel（）.