A.one black ball
B.two cones with bases together
C.a cone，apex downward
D.two cones，apexes together
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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
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
最新試題
A vessel crossing a river on the Western Rivers has the right of way over（）.
In a crossing situation，the stand-on vessel should normally（）.
If the circumstances of the case admit，any vessel（）in a narrow channel.
A head-on situation at night is one in which you see（）.
As look-out，you spot an object 45°off your port bow. You should report the object as（）.
Which statement about the Navigation Rules is TRUE?（）.
A vessel engaged in trawling will show identification lights of（）.
Vessels，（）support vessels，should not enter the safety zone of a deepwater port unless clearance has been obtained from the Vessel Traffic Supervisor.
A vessel aground at night is required to show two red lights in a vertical line as well as （）.
If a vessel of special construction cannot fully comply with the Rules，her degree of compliance shall be determined by（）.