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NAV-RH-THEORY-MODULE3-TEST LEARN
1.
On a transverse Mercator chart, with the exception of the Equator, parallels of latitude appear as:
a) ellipses
b) parabolas
c) straight lines
d) hyperbolic lines
2.
On a Direct Mercator chart, great circles are shown as:
a) curves concave to the nearer pole
b) curves convex to the nearer pole
c) straight lines
d) rhumb lines
3.
On a Lambert Conformal Conic chart earth convergency is most accurately represented at the:
a) standard parallels
b) parallel of origin
c) north and south limits of the chart
d) equator
4.
The Earth has been charted using:
a) WGS84
b) GPS84
c) WGP84
d) GD84
5.
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) reduces between, and expands outside, the standard parallels
d) is constant between, and expands outside the standard parallels
6.
The main use for an Oblique Mercator chart would be:
a) topographical coverage of equatorial regions
b) route charts for selected great circle routes
c) for countries with large changes in latitude but small changes in longitude
d) better topographical coverage of polar regions
7.
A rhumb line on a Direct Mercator chart appears as a:
a) complex curve
b) straight line
c) curve convex to the nearer pole
d) small circle concave to the nearer pole
8.
A Rhumb line is:
a) any straight line on a Lambert projection
b) a line convex to the nearest pole on a Mercator projection
c) the shortest distance between two points on a Polyconic projection
d) a line on the surface of the earth cutting all meridians at the same angle
9.
How does the chart convergency change with latitude in a Lambert Conformal projection?
a) It is constant and does not change with latitude
b) It increases with increase of latitude
c) It changes with cosine of latitude
d) It changes with sine of latitude
10.
How is a non-controlled route marked on a map/chart?
a) As a dotted line
b) As an alternate dotted/dashed line
c) As a solid line
d) As a dashed line
11.
Which one of the following, concerning great circles on a Direct Mercator chart, is correct?
a) With the exception of meridians and the equator, they are curves concave to the equator
b) They are all curves concave to the equator
c) They are all curves convex to the equator
d) They approximate to straight lines between the standard parallels
12.
On a Lambert chart (standard parallels 37oN and 65oN), with respct to the straight line drawn on the map the between A (N49o W030o) and B (N48oW040o), the:
a) great circle is to the north, the rhumb line is to the south
b) great circle and rhumb line are to the south
c) rhumb line is to the north, the great circle is to the south
d) great circle and rhumb line are to the north
13.
The scale quoted on a Lamberts chart is:
a) The scale at the Equator
b) The mean scale between the Pole and the Equator
c) The scale at the Standard Parallels
d) The mean scale at the Parallel of the Secant of the Cone
14.
Contour lines on aeronautical maps and charts connect points:
a) with the same variation
b) having the same longitude
c) having the same elevation above sea level
d) of equal latitude
15.
The appearance of a rhumb line on a Mercator chart is:
a) A small circle concave to the nearer pole
b) A curved line
c) A spiral curve
d) A straight line
16.
On a Mercator chart, the scale:
a) varies as the sine of the latitude
b) is constant throughout the chart
c) varies as 1/cosine of latitude (1/cosine=secant)
d) varies as ½ cosine of the co-latitude
17.
On a Lambert conformal conic chart, with two standard parallels, the quoted scale is correct:
a) along the parallel of origin
b) along the prime meridian
c) along the two standard parallels
d) in the area between the standard parallels
18.
On a transverse Mercator chart, the scale is exactly correct along the:
a) prime meridian and the equator
b) equator and parallel of origin
c) meridian of tangency and the parallel of latitude perpendicular to it
d) meridians of tangency
19.
Scale on a Lamberts conformal chart is:
a) constant along a parallel of latitude
b) varies with latitude and longitude
c) constant over the whole chart
d) constant along a meridian of longitude
20.
The angular difference, on a Lambert conformal conic chart, between the arrival and departure track is equal to:
a) earth convergence
b) conversion angle
c) map convergence
d) difference in longitude
21.
On a Direct Mercator chart, meridians are:
a) parallel, equally spaced, vertical straight lines
b) parallel, unequally spaced, vertical straight lines
c) inclined, unequally spaced, curved lines that meet at the nearer pole
d) inclined, equally spaced, straight lines that meet at the nearer pole
22.
A Lambert conformal conic projection, with two standard parallels:
a) shows lines of longitude as parallel straight lines
b) the scale is only correct at parallel of origin
c) shows all great circles as straight lines
d) the scale is only correct along the standard parallels
23.
A direct Mercator graticule is based on a projection that is:
a) concentric
b) cylindrical
c) spherical
d) conical
24.
A straight line is drawn on a Lamberts conformal conic chart between two positions of different longitude. The angular difference between the initial true track and the final true track of the line is equal to:
a) earth convergency
b) difference in longitude
c) conversion angle
d) chart convergency
25.
Parallels of latitude on a Direct Mercator chart are:
a) straight lines converging above the pole
b) parallel straight lines equally spaced
c) arcs of concentric circles equally spaced
d) parallel straight lines unequally spaced
26.
The nominal scale of a Lambert conformal conic chart is the:
a) scale at the equator
b) scale at the standard parallels
c) mean scale between the parallels of the secant cone
d) mean scale between pole and equator
27.
An Oblique Mercator projection is used specifically to produce:
a) radio navigational charts in equatorial regions
b) topographical maps of large east/west extent
c) plotting charts in equatorial regions
d) charts of the great circle route between two points
28.
On a Direct Mercator chart a great circle will be represented by a:
a) straight line
b) curve convex to the equator
c) complex curve
d) curve concave to the equator
29.
On a Lambert conformal conic chart the convergence of the meridians:
a) is the same as earth convergency at the parallel of origin
b) equals earth convergency at the standard parallels
c) is zero throughout the chart
d) varies as the secant of the latitude
30.
On a Direct Mercator chart, a rhumb line appears as a:
a) curve convex to the nearer pole
b) straight line
c) small circle concave to the nearer pole
d) spiral curve
31.
The chart that is generally used for navigation in polar areas is based on a:
a) Gnomonic projection
b) Lambert conformal projection
c) Stereographical projection
d) Direct Mercator projection
32.
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) They are curves convex to the Pole
b) They are complex curves that can be convex and/or concave to the Pole
c) Any straight line is a great circle
d) The higher the latitude the closer they approximate to a straight line
33.
Where on a Direct Mercator projection is the chart convergency correct compared to the earth convergency?
a) All over the chart
b) At the poles
c) At the equator
d) At the two parallels of tangency
34.
The distance on a Lambert’s chart, between two parallels of latitude the same number of degrees apart:
a) is constant between the Standard Parallels and expands outside them
b) Expands between the Standard Parallels, but reduces outside them
c) is constant all over the chart
d) Reduces between the Standard Parallels, but expands outside them
35.
What is the Rhumb line (RL) direction from 45oN 14o12W to 45oN 12o48E?
a) 090o (M)
b) 090o (T)
c) 270o (M)
d) 270o (T)
36.
In which of the following projections does a plane surface touch the Reduced Earth at one of the Poles?
a) Stereographic
b) Direct Mercator
c) Lambert’s
d) Gnomic
37.
On a Lambert Conformal Conic chart great circles that are not meridians are:
a) straight lines
b) curves concave to the parallel of origin
c) curves concave to the pole of projection
d) straight lines within the standard parallels
38.
On which of the following chart projections is it NOT possible to represent the north or south poles?
a) Polar stereographic
b) Transverse Mercator
c) Lamberts conformal
d) Direct Mercator
39.
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) can only be a parallel of latitude
d) is a Rhumb line
40.
The parallels on a Lambert Conformal Conic chart are represented by:
a) arcs of concentric circles
b) hyperbolic lines
c) parabolic lines
d) straight lines
41.
The scale on a Lambert conformal conic chart:
a) is constant along a parallel of latitude
b) varies slightly as a function of latitude and longitude
c) is constant across the whole map
d) is constant along a meridian of longitude
42.
Transverse Mercator projections are used for:
a) maps of large north/south extent
b) plotting charts in equatorial areas
c) maps of large east/west extent in equatorial areas
d) radio navigation charts in equatorial areas
43.
How does the scale vary in a Direct Mercator chart?
a) The scale increases south of the Equator and decreases north of the
Equator
b) The scale increases with increasing distance from the Equator
c) The scale is constant
d) The scale decreases with increasing distance from the Equator
44.
On a Transverse Mercator chart scale is correct at:
a) The Meridian of Tangency
b) The Great Circle of Tangency
c) The 180o meridian
d) The False Meridian
45.
Isogrivs on a chart indicate lines of:
a) Zero magnetic variation
b) Equal grivation 1 min
c) Equal horizontal directive force
d) Equal magnetic tip
46.
On a conformal chart, scale is:
a) Variable: it varies as a function of latitude and longitude
b) Constant along a meridian of longitude
c) Constant
d) Constant along a parallel of latitude
47.
Which one of the following describes the appearance of rhumb lines, except meridians, on a Polar Stereographic chart?
a) Straight lines
b) Ellipses around the Pole
c) Curves concave to the Pole
d) Curves convex to the Pole
48.
On a Direct Mercator, rhumb lines are:
a) ellipses
b) curves concave to the equator
c) curves convex to the equator
d) straight lines
49.
How does scale change on a normal Mercator chart?
a) Expands directly with the secant of the latitude
b) Expands as the secant2 (1/2 co-latitude)
c) Correct on the standard parallels, expands outside them, contracts within them
d) Expands as the secant of the E/W great circle distance
50.
What is the value of the convergence factor on a Polar Stereographic chart?
a) 0.0
b) 0.866
c) 1.0
d) 0.5
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