A.east
B.northeast
C.southwest
D.west
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A.velocity of current in knots
B.direction from which the current flows
C.estimated current
D.direction toward which the current flows
A.reversing current
B.ebb current
C.flood current
D.slack current
A.harmonic constant
B.establishment of the port
C.half-tide level
D.tide cycle
A.North
B.South
C.East
D.West
A.stem the current and make very slow headway when the anchor is dropped
B.stem the current and be falling aft very slowly when the anchor is dropped
C.stem the current and endeavor to make neither headway nor sternway when the anchor is dropped
D.stop all headway through the water and keep the current astern when the anchor is dropped
最新試題
The type of current which will have the greatest effect on the course made good for your vessel is（）.
Neap tides occur when the（）.
The tide（）.It’s 2 hours before low water，and（）your present position you will be aground at low water.
To make sure of getting the full advantage of a favorable current，you should reach an entrance or strait at what time in relation to the predicted time of the favorable current?（）
When daylight savings time is kept，the time of tide and current calculations must be adjusted.One way of doing this is to（）.
Which statement is TRUE concerning equatorial tides（）.
Which statement is TRUE concerning apogean tides（）．
The Benguela Current flows in a（）.
The two most effective generating forces of surface ocean currents are（）.
Which current would you encounter on a direct passage from southern Africa to Argentina，South America（）.