A negative (westerly) magnetic variation signifies that?

True North is East of Magnetic North.

True North is West of Magnetic North.

Magnetic North is West of Compass North.

Magnetic North is East of Compass North.

The nominal scale f a Lambert conformal conic chart is the?

Scale at the standard parallels.

Scale at the midway point between the two standard parallels.

A positive (easterly) magnetic variation signifies that?

True North is West of Magnetic North.

True North is East of Magnetic North.

Magnetic North is West of Compass North.

Magnetic North is East of Compass North.

On a Lambert conformal conic chart the convergence of the meridians is?

The same as earth convergency at the parallel of origin.

Most accurate at the standard parallets.

Least accurate at the parallel of origin.

On a Direct Mercator chart, a rhumb line appears as a?

Curve concave to the nearest poles.

Curve conjvex to the nearest pole.

On a Lambert conformal conic projection, with two standard parallels the scale is?

Correct only along the standard parallels.

Correct only along the parallel of origin.

Correct at all points on the chart.

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

Only along the two standard parallels.

Midway between the two standard parallels.

Only at the parallel of origin.

Only at the centre of the chart.

On a Direct Mercator chart a great circle will be represented by a ?

Curves concave to the nearest pole.

On a Lambert Conformal Conic chart earth convergency is most accurately represented at the?

Outside the standard parallels.

At all points between the standard parallels.

DGCA Air Navigation: Chart Theory & Projections Questions

136 exam-style Chart Theory & Projections questions for the DGCA Air Navigation paper (CPL · ATPL · PPL). The first 12 are free below with answers and explanations — sign up free to practise all of them with progress tracking.

Q1
A negative (westerly) magnetic variation signifies that?
- A True North is East of Magnetic North.
- B True North is West of Magnetic North.
- C Magnetic North is West of Compass North.
- D Magnetic North is East of Compass North.
Show answer

Correct answer: A. True North is East of Magnetic North.

This Explanation is Coming Soon
Q2
The nominal scale f a Lambert conformal conic chart is the?
- A Scale at the standard parallels.
- B Scale at the Equator.
- C Scale at the midway point between the two standard parallels.
- D Everywhere on the chart.
Show answer

Correct answer: A. Scale at the standard parallels.

This Explanation is Coming Soon
Q3
A positive (easterly) magnetic variation signifies that?
- A True North is East of Magnetic North.
- B True North is West of Magnetic North.
- C Magnetic North is West of Compass North.
- D Magnetic North is East of Compass North.
Show answer

Correct answer: B. True North is West of Magnetic North.

This Explanation is Coming Soon
Q4
The chart that is generally used for navigation in polar areas is based on a?
- A Lambert's Conformal.
- B Transverse Mercator.
- C Stereographical projection.
- D Direct Mercator.
Show answer

Correct answer: C. Stereographical projection.

This Explanation is Coming Soon
Q5
On a Lambert conformal conic chart the convergence of the meridians is?
- A The same as earth convergency at the parallel of origin.
- B The same as the scale.
- C Most accurate at the standard parallets.
- D Least accurate at the parallel of origin.
Show answer

Correct answer: A. The same as earth convergency at the parallel of origin.

This Explanation is Coming Soon
Q6
On a Direct Mercator chart, a rhumb line appears as a?
- A Curve concave to the nearest poles.
- B Curve conjvex to the nearest pole.
- C Straight line.
- D Curve convex to the equator.
Show answer

Correct answer: C. Straight line.

This Explanation is Coming Soon
Q7
On a Lambert conformal conic projection, with two standard parallels the scale is?
- A Correct only along the parallel of origin.
- B Correct only at the poles.
- C Correct only along the standard parallels.
- D Correct at all points on the chart.
Show answer

Correct answer: C. Correct only along the standard parallels.

This Explanation is Coming Soon
Q8
On a Lambert conformal conic chart, with two standard parallels, the quoted scale is correct?
- A Midway between the two standard parallels.
- B Only along the two standard parallels.
- C Only at the parallel of origin.
- D Only at the centre of the chart.
Show answer

Correct answer: B. Only along the two standard parallels.

This Explanation is Coming Soon
Q9
On a Direct Mercator chart a great circle will be represented by a ?
- A Straight lines.
- B Curves convex to the equator.
- C Curve convave to the equator.
- D Curves concave to the nearest pole.
Show answer

Correct answer: C. Curve convave to the equator.

This Explanation is Coming Soon
Q10
On a Lambert Conformal Conic chart earth convergency is most accurately represented at the?
- A Standard parallels.
- B Outside the standard parallels.
- C At all points between the standard parallels.
- D Parallel of origin.
Show answer

Correct answer: D. Parallel of origin.

This Explanation is Coming Soon
Q11
On a Transverse Mercator chart, scale is exactly correct along the?
- A Meridial of tangency.
- B Prime meridian.
- C Standard latitudes.
- D latitude of origin.
Show answer

Correct answer: A. Meridial of tangency.

This Explanation is Coming Soon
Q12
The angular difference, on a Lambert conformal conic chart, between the arrival and departure track is equal to ?
- A Departure angle.
- B Map convergence.
- C Secant of ½ latitude.
- D Secant of longitude.
Show answer

Correct answer: B. Map convergence.

This Explanation is Coming Soon

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