A.fixed red light
B.flashing light
C.white light
D.occulting light
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A.directions
B.dangers
C.exclusion areas
D.All of the above
A.danger
B.vessels are excluded from the area
C.the buoy is a mooring buoy
D.operating restrictions are in effect
A.an isolated danger mark
B.a hydrographic data collection buoy
C.a mooring buoy
D.marking a restricted area
A.submerged rock，not dangerous to navigation
B.sunken wreck，not dangerous to navigation
C.towed-under buoy
D.All of the above
A.underway
B.making way
C.dead in the water
D.a power driven vessel
最新試題
A yellow buoy may mark a(n)（）.
A SEAMARK，I.E. A BUOY，INDICATING THE NORTH，EAST，SOUTH OR WEST FROM A FIXED POINT，E.G. A WRECK is（）.
From your position you observe a rotating white and green light to the north. This light is most likely（）.
A vessel is（）when she is not at anchor，made fast to the shore，or aground.
An orange and white buoy with a rectangle on it displays（）.
A white buoy with an open-faced orange diamond on it indicates（）.
A special purpose buoy shall be（）.
A yellow buoy may exhibit a(n)（）.
A mid-channel buoy，if lighted，will show a（）.
Fishing stake，the position of which frequently（），exist in the area covered by this chart.