Set of flashcards 061 GNAV (Page 1 of 1)

Flashcards	20
Language	Deutsch
Category	Technology
Level	University
Created / Updated	02.06.2025 / 02.06.2025
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What is the rhumb line (RL) direction from N45° W14°12' to N45° E12°48'?

270° (M)

270° (T)

090° (T)

090° (M)

A great circle intersects the equator in W030° with a great circle direction of 035°(T). An aircraft tracking the great circle will reach the maximum Northern/Southern latitude in position:

N55° E060°

N35° W120°

S35° W120°

S55° E060°

A chart covers the area from N50° E005° to N50° W030° to N62° W030° to N62° E005° to N50° E005° using a lamberts conical projection. At N50° chart convergency will be ........ earth convergency and at N62° chart convergency will be ........ earth convergency.

less than - greater than

greater than - less than

equal to - equal to

equal to - less than

On a conformal chart, scale is:

Variable; it varies as a function of latitude and longitude

Constant

Constant along a parallel of latitude

Constant along a meridian

The Lambert conformal charts are used between which latitudes?

All latitudes

Polar areas down to about N/S70°

All latitudes up to about N/S70°

From the Equator to N/S50°

Earth convergence varies with difference of:

latitude

longitude

longitude and mean latitude

longitude and latitude

State where the scale indicated on a Lambert chart is precisely correct:

on the latitude "parallel of origin"

on the standard parallels

on the mean latitude of the route involved

along a meridian

On a Lambert conformal conic chart, earth convergency is most accurately represented at the:

Standard parallels

Parallel of origin

North and south limits of the chart

Equator

Two positions plotted on a Polar stereographic chart, A (N80° E000°) and B (N70° W102°), are joined by a straight line whose highest latitude is reached at W035°. At point B, the true course is:

247°

023°

203°

305°

On a Lambert chart with standard parallels at 38°N and 48°N, chart convergency at 48°N is:

the same as earth convergency

zero

greater than earth convergency

less than earth convergency

When measuring a distance on a direct Mercator chart you should use the:

scale given at the bottom of the chart

latitude scale along a meridian which straddles the middle of the line you are measuring

graduated scale line at the bottom of the chart

latitude scale up along a meridian in the vicinity of the equator

If the aircraft had flown the great circle track from A (160°E) to B (170°W), the track direction would have:

decreased by 26°

increased by 13°

decreased by 13°

increased by 26°

On a Lambert conformal conic chart, with two standard parallels, the quoted scale is correct:

along the two standard parallels

in the area between the standard parallels

along the parallel of origin

along the prime meridian

Distances on a Polar Stereographic chart are measured by using:

the latitude scale on a meridian in the vicinity of the point of tangency

the latitude scale on a meridian in the vicinity of the line measured

the latitude scale on a meridian in the vicinity of the equator

the longitude scale on a parallel in the vicinity of the line measured

On a direct Mercator chart the conversion angle (ca) should always be applied:

To the Great Circle direction, towards the Equator to get the Rhumb line direction

To the Great Circle direction, towards the Poles to get the Rhumb line direction

As half of its value to the Great Circle direction, towards the Equator to get the Rhumb line direction

As half of its value to the Rhumb line direction, towards the Poles to get the Great Circle direction

How does scale change on a normal Mercator chart?

expands as the secant² (1/2 co-latitude)

expands directly with the secant of the latitude

correct on the standard parallels, expands outside them, contracts within them

expands as the secant of the E/W great circle distance

A map is conformal when...

the meridians are straight lines and the scale is constant

it conforms to the specifications

the variation information is printed on the map as isogonals

the meridians and the parallels of latitude intersect at right angles and when the scale from any selected point is the same in all directions

Which of the following statements concerning the area between the standard parallels on a Lambert chart is correct?

In this area the scale is smaller than the scale specified on the map

In this area the scale is larger than the scale specified on the map

In this area the scale is equal to the scale specified on the map

An alteration in scale occurs only outside the standard parallels

On a Lambert conformal conic chart the convergence of the meridians:

is zero throughout the chart

is the same as earth convergency at the parallel of origin

varies as the secant of the latitude

equals earth convergency at the standard parallels

On a Lambert conformal conic chart the distance between parallels of latitude spaced the same number of degrees apart:

reduces between, and expands outside, the standard parallels

is constant between, and expands outside, the standard parallels

expands between, and reduces outside, the standard parallels

is constant throughout the chart

061 GNAV

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