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
Which information is found in the chart title（）.
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（）.
What information is NOT found in the chart title? （）
Every chart is liable to be incomplete（）.
Which information does the outer ring of a compass rose on a nautical chart provide（）.
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 projection depicting the poles and a small area on either side of a connecting meridian，that is sometimes used for star charts，is the（）.
The maximum difference between mean time and apparent time is （）.
The soundings on the imperial chart are measured in（）.
A chart with a scale of 1:80，000 would fall into the category of a（）.