A.dike
B.revetment
C.cutoff
D.crib
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A.numbered
B.lettered
C.green
D.red
A.lighted with a white light
B.striped black and red
C.lighted with a red light
D.yellow
A.Flashing
B.Morse A
C.Equal interval
D.Occulting
A.Entrance buoy
B.New buoy
C.Port buoy
D.Cardinal buoy
A.wingdam
B.towhead
C.cutoff
D.landwall
最新試題
A rock and sand structure extending from the bank of the river toward the channel is known as a（）.
An orange and white buoy marking an area where operating restrictions are in effect will be marked with which symbol? （）
A nun buoy will（）.
How would you pass a red buoy in the maritime buoyage system “A”? （）
Buoys which only mark the left or right side of the channel will never exhibit a light with which characteristic? （）
A preferred-channel buoy will show a（）.
A V-shaped ripple with the point of the V pointing upstream in a river may indicate a（）.
A relative bearing is always measured from（）.
Buoys which mark isolated dangers are painted with alternating（）.
A preferred-channel buoy may be（）.