A.submerged rock,not dangerous to navigation
B.sunken wreck,not dangerous to navigation
C.towed-under buoy
D.All of the above
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A.underway
B.making way
C.dead in the water
D.a power driven vessel
A.dike
B.revetment
C.cutoff
D.crib
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
最新試題
How is the intensity of a light expressed in the Light Lists?().
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().
Buoys which mark isolated dangers are painted with alternating().
A plane that cuts the Earth’s surface at any angle and passes through the center will always form().
How would you pass a red buoy in the maritime buoyage system “A”? ()
From your position you observe a rotating white and green light to the north. This light is most likely().
Buoys which mark dredging areas are painted().
Buoys are marked with reflective material to assist in their detection by searchlight. Which statement is TRUE? ()
A vessel is()when she is not at anchor,made fast to the shore,or aground.
A spherical buoy may be().