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
最新試題
What information is NOT found in the chart title? （）
Charts showing the coast of Mexico are produced by the United States（）.
Which chart symbol indicates the bottom is clay（）.
Where would you obtain data on currents for areas of the world not covered by the National Ocean Service（）.
Particular care is needed when navigating in the vicinity of（）as very few of these features have been fully surveyed to modern standards to determine their correct position，full extent，or the least depth over them.
The short-long dashed magenta line around Gardiners Island marks（）.
The broken magenta lines（long and short dashes）in and around Mobjack Bay indicate（）.
The only cylindrical chart projection widely used for navigation is the （）.
When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to （）.
The numeral in the center of a wind rose circle on a pilot chart indicates the （）.