A.equal to the longitude expressed in time units
B.about 16 minutes
C.the difference between the GHA of mean sun and the first point of Aries
D.15°of arc
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A.radar conspicuous beacon
B.circular radiobeacon
C.radar transponder beacon
D.radar calibration beacon
A.deviation
B.annual rate of variation change
C.precession
D.compass error
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
最新試題
On a Mercator chart，1 nautical mile is equal to（）.
What is NOT an advantage of the rhumb line track over a great circle track? （）
The soundings on the chart are based on the depth of water available at （）.
Where would you obtain data on currents for areas of the world not covered by the National Ocean Service（）.
A chart with a scale of 1:80，000 would fall into the category of a（）.
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 only cylindrical chart projection widely used for navigation is the （）.
Which chart symbol indicates the bottom is clay（）.
The short-long dashed，magenta lines parallel to York River Entrance Channel mark（）．
Which information is found in the chart title（）.