A.National Geospatial-Intelligence Agency
B.Coast Guard
C.Naval Observatory
D.National Ocean Service
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A.sailing chart
B.general chart
C.coastal chart
D.harbor chart
A.Azimuthal gnomonic projection
B.Lambert conformal projection
C.Transverse Mercator projection
D.Polyconic projection
A.fix
B.estimated position
C.dead reckoning position
D.running fix
A.Hifix
B.Hyperfix
C.Trisponder
D.WGS84
A.Aero light
B.Radar station
C.Radar transponder beacon
D.Radiobeacon
最新試題
The soundings on the imperial chart are measured in（）.
Which chart symbol indicates the bottom is clay（）.
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.
On a Mercator chart，1 nautical mile is equal to（）.
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（）.
The description Racon beside an illustration on a chart would mean a （）.
When a buoy is in position only during a certain period of the year，where may the dates when the buoy is in position be found?（）
A chart position enclosed by a square is a（n）（）.
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
The arrangement of charts in the catalogue is（）.