A.prevailing wind directions
B.prevailing ocean current directions
C.probable surface current flow
D.shortest great circle routes
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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
A.published with
B.combined with
C.in connection with
D.subject to
A.with
B.from
C.on
D.by
A.found in the center(s) of the compass rose(s)
B.indicated by isogonic lines
C.found in a note on the chart
D.All of the above
A.red triangle with the letter R
B.white triangle with the letters RG
C.green square with the letter G
D.white square with the letters GR
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That the scale of any part of a chart to be larger than the scale of the survey is（）.
The survey information upon which a chart is based is found （）.
The description Racon beside an illustration on a chart would mean a （）.
Every chart is liable to be incomplete（）.
Which aid is NOT marked on a chart with a magenta circle? （）
What information is NOT found in the chart title? （）
On a Mercator chart，1 nautical mile is equal to（）.
The revision date of a chart is printed on which area of the chart? （）
The path that a vessel is expected to follow，represented on a chart by a line drawn from the point of departure to the point of arrival，is the（）.
What is NOT an advantage of the rhumb line track over a great circle track? （）