单项选择题
When navigating in high latitudes and using a chart based on a Lambert conformal projection，（）.
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
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相关考题
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单项选择题
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.Light List
B.Notice to Mariners
C.On the chart
D.Coast Pilot -
单项选择题
What is NOT an advantage of the rhumb line track over a great circle track? （）
A.Easily plotted on a Mercator chart
B.Negligible increase in distance on east-west courses near the equator
C.Does not require constant course changes
D.Plots as a straight line on Lambert conformal charts -
单项选择题
What information is NOT found in the chart title? （）
A.Survey information
B.Scale
C.Date of first edition
D.Projection
