A.the final judge of the reliance the mariner can place on the information given
B.its immediate importance cannot always be verified before promulgation
C.through imperfections in the survey on which it is based，or subsequent alterations to the topography or sea floor
D.deferring the promulgation of certain less important information
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A.National Geospatial-Intelligence Agency
B.Coast Guard
C.Naval Observatory
D.National Ocean Service
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
最新試題
When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to （）.
A chart with a scale of 1:80，000 would fall into the category of a（）.
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? （）
What information is NOT found in the chart title? （）
（）is not a position-fixing system.
Which information is found in the chart title（）.
The soundings on the imperial chart are measured in（）.
The shoreline on charts generally represents the mean（）.
Where would you obtain data on currents for areas of the world not covered by the National Ocean Service（）.