A.speed of the current at a particular time
B.maximum speed of the current
C.direction from which the current flows
D.direction in which the current flows
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A.SW'ly direction along the NW coast of Africa
B.S'ly direction off the East Coast of Australia
C.NW'ly direction along the SW coast of Africa
D.SW'ly direction along the SE coast of Greenland
A.the vertical rise or fall of the tide has stopped
B.slack water occurs
C.tidal current is at a maximum
D.the actual depth of the water equals the charted depth
A.have lows lower than normal and highs higher than normal
B.have lows higher than normal and highs lower than normal
C.are unpredictable
D.occur in the spring of the year
A.Pick up speed where the channel widens
B.Run slower in the center of the channel
C.Hug the inside of a bend
D.Cause the greatest depth of water to be along the outside of a bend
A.at times of new and full Moon
B.when the Earth，Moon，and Sun are lying approximately on the same line
C.when the Moon is between first quarter and full and between third quarter and new
D.when the Moon is between new and first quarter and between full and third quarter
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The winds with the greatest effect on the set，drift，and depth of the equatorial currents are the（）.
The speed of an ocean current is dependent on（）.
The two most effective generating forces of surface ocean currents are（）.
Which current is responsible for the movement of icebergs into the North Atlantic shipping lanes（）.
Neap tides occur when the（）.
The Benguela Current flows in a（）.
The term flood current refers to that time when the water（）.
Which current would you encounter on a direct passage from London，England，to Capetown，South Africa（）.
The tide is（）.
You are docking a vessel．Wind and current are most favorable when they are（）.