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
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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
A.an anchor light
B.sidelights and a sternlight
C.three lights in a vertical line，the highest and lowest being red，and the middle being white
D.None of the above
最新試題
A vessel enagaged in fishing，and at anchor，shall show（）.
If a seaplane is not used as a means of transpiration on water but is capable of being used so，it shall（）.
Which statement about the Navigation Rules is TRUE?（）.
A vessel engaged in mine clearance operations is called（）.
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.
A vessel aground at night is required to show two red lights in a vertical line as well as （）.
A proper look-out must be kept（）.
A vessel engaged in fishing during the day would show（）.
In complying with the Rules，of what must the mariner take due regard?（）.
A vessel conducting mine clearing operations will show（）.