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
A V-shaped ripple with the point of the V pointing upstream in a river may indicate a（）.
A yellow buoy may mark a(n)（）.
A preferred-channel buoy will show a（）.
An orange and white buoy with a rectangle on it displays（）.
A plane perpendicular to the polar axis will never form what line on the Earth’s surface? （）
Fishing stake，the position of which frequently（），exist in the area covered by this chart.
Buoys which mark isolated dangers are painted with alternating（）.
A vessel is（）when she is not at anchor，made fast to the shore，or aground.
Buoys which mark dredging areas are painted（）.
How is the intensity of a light expressed in the Light Lists?（）.