A.ignores the effect of surface currents
B.is most useful when in sight of land
C.must be plotted using magnetic courses
D.may be started at an assumed position
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A.north side of the mark
B.west side of the mark
C.east side of the mark
D.south side of the mark
A.left-side buoy
B.right-side buoy
C.a buoy of safety
D.a buoy of danger
A.anchorage area
B.fish net area
C.bifurcation
D.dredging area
A.white light FL (2) and a topmark of 2 black spheres
B.occulting green light and may be lettered
C.yellow light and will be numbered
D.continuous quick white light and may be numbered
A.interrupted quick flashing
B.composite group flashing
C.Morse (A)
D.quick flashing
最新試題
When approaching a preferred-channel buoy，the best channel is NOT indicated by the（）.
Which statement concerning current is TRUE（）.
（） is a defined area within which ships must use particular caution and should follow the recommended direction of traffic flow.
The points on the earth’s surface where the magnetic dip is 90° are（）.
When entering a channel from seaward，the numbers on buoys（）.
When making landfall at night，you can determine if a light is a major light or an offshore buoy by（）.
Traffic separation schemes adopted by the IMO are listed in（）.
When navigating a vessel，you（）.
You have been informed that dredging operations may be underway in your vicinity.Which buoy indicates the dredging area（）.
Which position includes the effects of wind and current（）.