A.lighted with a white light
B.striped black and red
C.lighted with a red light
D.yellow
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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
A.true north
B.magnetic north
C.the vessel's beam
D.the vessel's head
A.white light whose characteristic is Morse (A)
B.group-occulting white light
C.composite group-flashing (2 + 1) white light
D.composite group-flashing (2 + 1) red or green light
最新試題
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 special mark (yellow buoy)，if lighted，may exhibit which light rhythm?（）
A SEAMARK，I.E. A BUOY，INDICATING THE NORTH，EAST，SOUTH OR WEST FROM A FIXED POINT，E.G. A WRECK is（）.
Branford reef is（）.
Except for N-S courses，and E-W courses on the equator，a great circle track between two points，when compared to a rhumb line track between the same two points，will（）.
A yellow buoy may mark a(n)（）.
An orange and white buoy marking an area where operating restrictions are in effect will be marked with which symbol? （）
A plane that cuts the Earth’s surface and passes through the poles will always form（）.
Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? （）