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
A chart position enclosed by a square is a（n）（）.
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.
The only cylindrical chart projection widely used for navigation is the （）.
Charts showing the coast of Mexico are produced by the United States（）.
When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to （）.
What is NOT an advantage of the rhumb line track over a great circle track? （）
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（）.
On chart，bearings to near objects should be used in preference to objects farther off，because（）.
Which information is found in the chart title（）.