A.fix
B.estimated position
C.dead reckoning position
D.running fix
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A.Hifix
B.Hyperfix
C.Trisponder
D.WGS84
A.Aero light
B.Radar station
C.Radar transponder beacon
D.Radiobeacon
A.the meridian through the object of the bearing
B.the meridian through the ship's position
C.the meridian midway between the ship and the object
D.any meridian
A.a straight line drawn on the chart approximates a great circle
B.the chart should not be used outside of the standard parallels
C.the course angle is measured at the mid-longitude of the track line
D.distance cannot be measured directly from the chart
A.Light List
B.Notice to Mariners
C.On the chart
D.Coast Pilot
最新試題
Where would you obtain data on currents for areas of the world not covered by the National Ocean Service（）.
The numeral in the center of a wind rose circle on a pilot chart indicates the （）.
The description Racon beside an illustration on a chart would mean a （）.
That the scale of any part of a chart to be larger than the scale of the survey is（）.
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.
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 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（）.
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 chart symbol indicates the bottom is clay（）.