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
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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
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
最新試題
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
A chart projection depicting the poles and a small area on either side of a connecting meridian，that is sometimes used for star charts，is the（）.
Every chart is liable to be incomplete（）.
A chart with a scale of 1:80，000 would fall into the category of a（）.
What information is found in the chart title? （）
The revision date of a chart is printed on which area of the chart? （）
The broken magenta lines（long and short dashes）in and around Mobjack Bay indicate（）.
The numeral in the center of a wind rose circle on a pilot chart indicates the （）.
Which information is found in the chart title（）.
The arrangement of charts in the catalogue is（）.