A.C
B.Cl
C.Co
D.c
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A.Surging
B.Spilling
C.Plunging
D.Converging
A.you should stay to the north or east of the buoy
B.you should stay to the west or south of the buoy
C.the buoy is a major lighted buoy
D.nothing special for navigational purposes
A.magnetic equator
B.magnetic longitude reference line
C.points where there is no variation
D.points where there is no annual change in variation
A.prevailing wind directions
B.prevailing ocean current directions
C.probable surface current flow
D.shortest great circle routes
A.conspicuous object
B.steep depression in the surrounding hills that resembles a cup
C.domed structure useful for navigation
D.calling-up-point used for traffic control
最新試題
（）is not a position-fixing system.
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
Charts showing the coast of Mexico are produced by the United States（）.
Which chart symbol indicates the bottom is clay（）.
What defines a great circle? （）
The soundings on the chart are based on the depth of water available at （）.
What information is found in the chart title? （）
Which aid is NOT marked on a chart with a magenta circle? （）
A chart position enclosed by a square is a（n）（）.
Which information is found in the chart title（）.