单选题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 bearingB the meridian through the ship's positionC the meridian midway between the ship and the obje

What is the major advantage of a rhumb line track?

A.The vessel can steam on a constant heading (disregarding wind，current，etc)

B.The rhumb line is the shortest distance between the arrival and departure points

C.It is easily plotted on a gnomonic chart for comparison with a great circle course

D.It approximates a great circle on east-west courses in high latitudes

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

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

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 ______.

A.azimuthal gnomonic projection

B.Lambert conformal projection

C.transverse Mercator projection

D.polyconic projection

For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?

A.Plotting radio bearings over a long distance

B.Determining latitude and longitude of a fix

C.Measuring rhumb line distances

D.Measuring rhumb line directions

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

To ______ Admiralty Charts 438，latitudes taken from this chart should be increased by about 5 seconds．

A.convert to

B.come to

C.look at

D.agree with

The only cylindrical chart projection widely used for navigation is the ______.

A.Lambert conformal

B.Mercator

C.azimuthal

D.gnomonic

In very high latitudes，the most practical chart projection is the ______．

A.Mercator

B.Gnomonic

C.Azimuthal

D.Lambert conformal