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NAV-LX-MODULE6-CHARTS
1.
The nominal scale of a Lambert conformal conic chart is the:
a) scale at the equator
b) mean scale between the parallels of the secant cone
c) mean scale between pole and equator
d) scale at the standard parallels
2.
The chart that is generally used for navigation in polar areas is based on a:
a) Direct Mercator projection
b) Lambert conformal projection
c) Gnomonic projection
d) Stereographical projection
3.
On a Lambert conformal conic chart the convergence of the meridians:
a) varies as the secant of the latitude
b) is zero throughout the chart
c) equals earth convergency at the standard parallels
d) is the same as earth convergency at the parallel of origin
4.
On a Mercator chart, the scale:
a) varies as 1/2 cosine of the co-latitude
b) is constant throughout the chart
c) varies as 1/cosine of latitude (1/cosine= secant)
d) varies as the sine of the latitude
5.
A Lambert conformal conic projection, with two standard parallels:
a) the scale is only correct along the standard parallels
b) shows all great circles as straight lines
c) the scale is only correct at parallel of origin
d) shows lines of longitude as parallel straight lines
6.
On a Lambert conformal conic chart, with two standard parallels, the quoted scale is correct:
a) along the two standard parallels
b) along the prime meridian
c) along the parallel of origin
d) in the area between the standard parallels
7.
On a Lambert Conformal Conic chart earth convergency is most accurately represented at the:
a) parallel of origin
b) Equator
c) standard parallels
d) north and south limits of the chart
8.
On a Transverse Mercator chart, scale is exactly correct along the:
a) datum meridian and meridian perpendicular to it
b) prime meridian and the equator
c) meridian of tangency
d) Equator, parallel of origin and prime vertical
9.
Transverse Mercator projections are used for:
a) maps of large north/south extent
b) radio navigation charts in equatorial areas
c) plotting charts in equatorial areas
d) maps of large east/west extent in equatorial areas
10.
On a transverse Mercator chart, the scale is exactly correct along the:
a) meridians of tangency
b) equator and parallel of origin
c) prime meridian and the equator
d) meridian of tangency and the parallel of latitude perpendicular to it
11.
On a transverse Mercator chart, with the exception of the Equator, parallels of latitude appear as:
a) ellipses
b) straight lines
c) hyperbolic lines
d) parabolas
12.
An Oblique Mercator projection is used specifically to produce:
a) charts of the great circle route between two points
b) plotting charts in equatorial regions
c) topographical maps of large east/ west extent
d) radio navigational charts in equatorial regions
13.
The scale on a Lambert conformal conic chart :
a) is constant across the whole map
b) is constant along a meridian of longitude
c) is constant along a parallel of latitude
d) varies slightly as a function of latitude and longitude
14.
A direct Mercator graticule is based on a projection that is :
a) spherical
b) conical
c) cylindrical
d) concentric
15.
On a Direct Mercator chart, a rhumb line appears as a:
a) spiral curve
b) small circle concave to the nearer pole
c) curve convex to the nearer pole
d) straight line
16.
On a Lambert Conformal Conic chart great circles that are not meridians are:
a) curves concave to the pole of projection
b) straight lines within the standard parallels
c) curves concave to the parallel of origin
d) straight lines regardless of distance
17.
Parallels of latitude on a Direct Mercator chart are :
a) parallel straight lines unequally spaced
b) arcs of concentric circles equally spaced
c) straight lines converging above the pole
d) parallel straight lines equally spaced
18.
A straight line on a Lambert Conformal Projection chart for normal flight planning purposes:
a) is approximately a Great Circle
b) is a Loxodromic line
c) is a Rhumb line
d) can only be a parallel of latitude
19.
On a Direct Mercator chart a great circle will be represented by a:
a) straight line
b) curve convex to the equator
c) curve concave to the equator
d) complex curve
20.
The angular difference, on a Lambert conformal conic chart, between the arrival and departure track is equal to:
a) conversion angle
b) difference in longitude
c) earth convergence
d) map convergence
21.
The parallels on a Lambert Conformal Conic chart are represented by:
a) hyperbolic lines
b) straight lines
c) arcs of concentric circles
d) parabolic lines
22.
Parallels of latitude, except the equator, are:
a) Rhumb lines
b) Great circles
c) both Rhumb lines and Great circles
d) are neither Rhumb lines nor Great circles
23.
On a Lambert chart (standard parallels 37°N and 65°N), with respect to the straight line drawn on the map between A ( N49° W030°) and B (N48° W040°), the:
a) rhumb line is to the north, the great circle is to the south
b) great circle is to the north, the rhumb line is to the south
c) great circle and rhumb line are to the north
d) great circle and rhumb line are to the south
24.
On a Direct Mercator chart, meridians are:
a) parallel, unequally spaced, vertical straight lines
b) inclined, equally spaced, straight lines that meet at the nearer pole
c) inclined, unequally spaced, curved lines that meet at the nearer pole
d) parallel, equally spaced, vertical straight lines
25.
On which of the following chart projections is it NOT possible to represent the north or south poles?
a) Polar stereographic
b) Direct Mercator
c) Transverse Mercator
d) Lambert's conformal
26.
Which one of the following, concerning great circles on a Direct Mercator chart, is correct?
a) They approximate to straight lines between the standard parallels
b) They are all curves convex to the equator
c) They are all curves concave to the equator
d) With the exception of meridians and the equator, they are curves concave to the equator
27.
On a Lambert conformal conic chart, the distance between parallels of latitude spaced the same number of degrees apart :
a) expands between, and reduces outside, the standard parallels
b) is constant throughout the chart
c) is constant between, and expands outside, the standard parallels
d) reduces between, and expands outside, the standard parallels
28.
Which one of the following statements is correct concerning the appearance of great circles, with the exception of meridians, on a Polar Stereographic chart whose tangency is at the pole ?
a) The higher the latitude the closer they approximate to a straight line
b) They are complex curves that can be convex and/or concave to the Pole
c) They are curves convex to the Pole
d) Any straight line is a great circle
29.
Which one of the following describes the appearance of rhumb lines, except meridians, on a Polar Stereographic chart?
a) Straight lines
b) Curves concave to the Pole
c) Curves convex to the Pole
d) Ellipses around the Pole
30.
What is the value of the convergence factor on a Polar Stereographic chart?
a) 1
b) 0.4
c) 0.6
d) 0.06
31.
On a Direct Mercator, rhumb lines are:
a) curves concave to the equator
b) straight lines
c) ellipses
d) curves convex to the equator
32.
Contour lines on aeronautical maps and charts connect points :
a) of equal latitude
b) having the same elevation above sea level
c) with the same variation
d) having the same longitude
33.
on a Direct Mercator projection a particular chart length is measured at 30 degrees North. What earth distance will the same chart length be if measured at 60 degrees North?
a) A smaller distance.
b) Twice the distance.
c) A larger distance.
d) The same distance.
34.
How does the scale vary in a Direct Mercator chart?
a) The scale increases with increasing distance north and south of the equator.
b) The scale is constant.
c) The scale decreases with increasing distance north and south of the equator.
d) The scale increases south of the equator and decreases north of the equator.
35.
How does the chart convergence change with latitude in a Lambert Conformal projection?
a) It is constant and does no change with latitude.
b) It changes with the cosine of latitude.
c) It increases with increasing latitude.
d) It changes with the sine of latitude.
36.
Where on a Direct Mercator chart is the chart convergence correct compared to the earth convergence?
a) All over the chart.
b) At the poles.
c) At the equator.
d) At the parallels of tangency.
37.
A rhumb line on a Direct Mercator chart appears as a?
a) Small circle concave to the nearest pole.
b) Curve convex to the nearest pole.
c) Complex curve.
d) Straight line.
38.
The standard parallels of a Lambert chart are 26N and 48N and the stated scale is 1: 2 500 000. Which of the following is correct?
a) The scale at 28N is smaller than the scale at 24N.
b) The scale at 37N is larger than the scale at 20N.
c) The scale at 30N is smaller than the scale at 37N.
d) The scale at 46N is larger than the scale at 50N.
39.
Which statement is correct about the scale of a Polar Stereographic projection of the northern polar area?
a) The scale reaches a maximum value at 45N.
b) The scale reaches a minimum at the Equator Pole.
c) The scale reaches a minimum at the North Pole.
d) The sale reaches a maximum at the North Pole.
40.
Which statement is correct about the scale of a Lambert projection?
a) The scale reaches its maximum value at the parallel of origin.
b) The scale reaches its minimum value at the standard parallels.
c) The scale reaches its maximum value at the standard parallels.
d) The scale reaches its minimum value at the parallel of origin.
41.
Which statement is correct about the parallel of origin of a conformal chart?
a) The parallel of origin together with the standard parallel(s), are the only parallels at which the chart is conformal.
b) The parallel of origin is the parallel at which the scale reaches its maximum value.
c) The parallel of origin is the only parallel at which the chart is conformal.
d) The parallel of origin is the parallel at which the scale reaches its minimum value.
42.
An aeronautical chart is conformal when?
a) The meridians and the parallels are perpendicular to each other.
b) At any point the scale over a short distance in the direction of the parallel is equal to the scale in the direction of the meridian and the meridians are perpendicular to the parallels.
c) The map is an equidistant normal projection.
d) Every great circle is represented by a straight line in the map.
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