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 chart are based on the depth of water available at （）.
The numeral in the center of a wind rose circle on a pilot chart indicates the （）.
A chart position enclosed by a square is a（n）（）.
The revision date of a chart is printed on which area of the chart? （）
The survey information upon which a chart is based is found （）.
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 broken magenta lines（long and short dashes）in and around Mobjack Bay indicate（）.
The shoreline on charts generally represents the mean（）.
The only cylindrical chart projection widely used for navigation is the （）.
The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．