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
Which information does the outer ring of a compass rose on a nautical chart provide（）.
The revision date of a chart is printed on which area of the chart? （）
The maximum difference between mean time and apparent time is （）.
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 numeral in the center of a wind rose circle on a pilot chart indicates the （）.
On a Mercator chart，1 nautical mile is equal to（）.
When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to （）.
When navigating in high latitudes and using a chart based on a Lambert conformal projection，（）.
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 （）.