A.do not interfere with the keeping of a proper look-out
B.are not the color of either sidelight
C.have a lesser range than the prescribed lights
D.All of the above
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A.a red light over a white light
B.a white light over a red light
C.a green light over a white light
D.two red lights in a vertical line
A.a vessel restricted in her ability to maneuver
B.a vessel not under command
C.a vessel constrained by her draught
D.a vessel not under way
A.under sail
B.restricted in her ability to maneuver
C.crossing a channel
D.All of the above
A.white
B.green
C.red
D.yellow
A.one black ball
B.two cones with bases together
C.a cone，apex downward
D.two cones，apexes together
最新試題
In dense fog a vessel without operational radar may not be justified（）at all but should anchor if it is safe and practicable for her to do so.
In complying with the Rules，of what must the mariner take due regard?（）.
A vessel aground at night is required to show two red lights in a vertical line as well as （）.
A vessel enagaged in fishing，and at anchor，shall show（）.
A vessel engaged in fishing must display a light in the direction of any gear that extends outward more than 150 meters. The color of this light is（）.
A vessel（）a crossing vessel，shall not normally enter a separation zone or cross a separation line.
In a crossing situation，the stand-on vessel should normally（）.
A vessel engaged in fishing during the day would show（）.
A vessel engaged in mine clearance operations is called（）.
A head-on situation at night is one in which you see（）.