Vayudoot Aviation

1. European regulations (CS Ops-1) state that the maximum permissible deviations after compensation are

one degree for a remote indicating compass, and ten degrees for a direct reading magnetic compass.

one degree for a direct reading magnetic compass, and eleven degrees for a slaved compass.

ten degrees for a remote indicating compass, and one degree for a direct reading magnetic compass.

three degrees for a direct reading magnetic compass, and one degree for a remote indicating compass.

2. Deviation due to coefficient A is mainly caused by

vertical soft iron forces.

hard iron force acting along the longitudinal axis.

hard and soft iron forces acting along the lateral axis.

a misaligned lubber line.

3. The aim of a compass swing is: 1. to find deviation on the cardinal headings and to calculate coefficients A, B and C. 2. to eliminate or reduce the coefficients found. 3. to record any residual deviation and to prepare a compass correction card.

answers 1 and 3 are correct.

answers 1, 2 and 3 are all correct.

only answer 1 is correct.

none of the above answers are correct.

4. Compass swings should be carried out:

on the active runway.

at the holding point.

on the apron.

only on the compass swinging base or site.

5. Aircraft magnetism caused by Vertical Soft Iron

varies as the cosine of the compass heading.

varies with magnetic heading but not with magnetic latitude

varies with magnetic latitude but not with heading.

it is not affected magnetic latitude or heading.

6. Aircraft magnetism caused by Hard Iron:

is maximum on east and west.

is not usually influenced by the earth's magnetic field.

varies directly with magnetic latitude.

varies indirectly with magnetic latitude.

Question Bank

Questions for AIRCRAFT MAGNETISM