A.fixed red light
B.Morse (A) white light
C.composite group-flashing light
D.yellow light
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A.flashing
B.pulsating
C.occulting
D.alternating
A.switching
B.alternating
C.oscillating
D.fluctuating
A.sharp turn in the channel
B.narrowing in the channel at that point
C.junction in the channel
D.obstruction that must be left to port
A.should be passed close aboard on either side
B.indicates that special caution is required
C.is used at a channel bifurcation or junction
D.is painted with red and white vertical stripes
A.easterly courses in high latitudes
B.southerly courses in high latitudes
C.westerly courses in low latitudes
D.easterly courses in low latitudes that cross the equator
最新試題
How would you pass a red buoy in the maritime buoyage system “A”? （）
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（）.
A yellow buoy may exhibit a(n)（）.
A rock and sand structure extending from the bank of the river toward the channel is known as a（）.
From your position you observe a rotating white and green light to the north. This light is most likely（）.
An orange and white buoy with a rectangle on it displays（）.
A special mark (yellow buoy)，if lighted，may exhibit which light rhythm?（）
A vessel is（）when she is not at anchor，made fast to the shore，or aground.
Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? （）