單項(xiàng)選擇題Which aid is NOT marked on a chart with a magenta circle? （）

A.Aero light
B.Radar station
C.Radar transponder beacon
D.Radiobeacon


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1.單項(xiàng)選擇題When using a Lambert conformal chart in high latitudes，angles such as bearings are measured in reference to （）.

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

2.單項(xiàng)選擇題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

4.單項(xiàng)選擇題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

5.單項(xiàng)選擇題What information is NOT found in the chart title? （）

A.Survey information
B.Scale
C.Date of first edition
D.Projection