A.deviation
B.annual rate of variation change
C.precession
D.compass error
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A.newly edition with up to date correction and in reasonable prices
B.the current edition and incorporate the last Notices to Mariners correction
C.the current edition and incorporate the latest Notices to Mariners correction at the time of sale
D.brand-new one with up to date correction and clean writing
A.C
B.Cl
C.Co
D.c
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
最新試題
Where would you obtain data on currents for areas of the world not covered by the National Ocean Service（）.
（）is not a position-fixing system.
What information is found in the chart title? （）
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（）.
When navigating in high latitudes and using a chart based on a Lambert conformal projection，（）.
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
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.
Which chart symbol indicates the bottom is clay（）.
A chart with a scale of 1:80，000 would fall into the category of a（）.
The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．