單項(xiàng)選擇題To agree with larger scale chart,latitudes taken from this chart should be increased () about 8 seconds.

A.with
B.in
C.by
D.to


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1.單項(xiàng)選擇題The soundings on the chart are based on the depth of water available at ().

A.mean low water
B.mean lower low water
C.mean high water
D.mean high water springs

3.單項(xiàng)選擇題Which information is found in the chart title().

A.A rhumb line appears as a straight line
B.Distance is measured at the midlatitude of the track line
C.Meridians appear as curved lines converging toward the nearer pole
D.Parallels,except the equator,appear as curved lines

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The shoreline on charts generally represents the mean().

A.High water line
B.Low water line
C.Low water spring line
D.Tide level

6.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

7.單項(xiàng)選擇題The soundings on the imperial chart are measured in().

A.Feet
B.Yards
C.Fathoms
D.Meters

8.單項(xiàng)選擇題The arrangement of charts in the catalogue is().

A.on a regional basis
B.on a national basis
C.shown orderly
D.appeared from A to W

9.單項(xiàng)選擇題The revision date of a chart is printed on which area of the chart? ()

A.Top center
B.Lower-left corner
C.Part of the chart title
D.Any clear area around the neat line

10.單項(xiàng)選擇題A chart with a scale of 1:80,000 would fall into the category of a().

A.sailing chart
B.general chart
C.coastal chart
D.harbor chart