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
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A.vessels ascending the river
B.vessels descending the river
C.all vessels ascending and descending the river
D.None of the above
A.The vessel has negative GM
B.The center of gravity is on the centerline
C.The list can be corrected by reducing KM
D.The vessel has asymmetrical weight distribution
A.two all-round red lights in a vertical line
B.three all-round red lights in a vertical line
C.two all-round yellow lights in a vertical line
D.three all-round green lights in a vertical line
A.three balls in a vertical line
B.two balls in a vertical line
C.one ball near the foremast and one ball at each fore yard
D.one diamond near the foremast head and one ball at each fore yard
A.a forward masthead light
B.sidelights and a sternlight
C.a towing light
D.All of the above
最新試題
A vessel constrained by her draught may,in addition to the lights prescribed for power-driven vessels in Rule 23,exhibit where they can best be seen()or a cylinder.
If the circumstances admit,()of small alteration of course and speed shall not be taken to avoid collision.
Which statement about the Navigation Rules is TRUE?().
A vessel conducting mine clearing operations will show().
A vessel being towed will show().
A vessel engaged in fishing shall keep out of the way of a vessel().
A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights().
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 enagaged in fishing,and at anchor,shall show().
A vessel engaged in fishing during the day would show().