A.bifurcation
B.transit
C.crossing
D.changeover
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A.the direction the storm has come from
B.the direction in which the storm is moving
C.the speed at which the storm is moving
D.the path taken by the storm
A.required to give way in a crossing situation
B.required to sound the first passing signal in a meeting situation
C.free to maneuver in any crossing or meeting situation as it has the right-of-way
D.required to maintain course and speed in a crossing situation but may take action to avoid collision
A.over the bow or stern of a vessel
B.over the flat sides of a vessel
C.over the open water
D.over the dockside
A.replaced in its proper location if weight loss is no more than 15%
B.replaced in its proper location if weight loss is no more than 25%
C.labeled empty and recharged as soon as possible
D.labeled empty and replaced in its proper location regardless of weight
A.red-and-white octagon
B.daymark with a yellow stripe on it
C.green square
D.yellow diamond
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A thrust block is designed to（）.
A towing light is（）.
A slow rise in the barometric pressure forecasts（）.
A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when（）.
A tow can override its tug as a result of（）.
A tsunami is caused by a(n)（）.
A time diagram is a diagram of the celestial sphere as observed from above the（）.
A special daymark is a（）.
A stretch where the channel changes from one side of the river to the other is called a （）.
A vertex of the navigational triangle is NOT located at the（）.