OGINS 03.01 – Magnetic Compass

 

Results

Q1. The magnetic heading can be derived from the true heading by means of a :

map showing the isogonal lines

Q2. In the Southern hemisphere, during deceleration following a landing in a Westerly direction, the magnetic compass will indicate :

an apparent turn to the North.

Q3. The fields affecting a magnetic compass originate from: 1. magnetic masses 2. ferrous metal masses 3. non ferrous metal masses 4. electrical currents The combination of correct statements is:

1,2,4

Q4. Variation is defined as the angle between:

TN and MN.

Q5. An aircraft takes-off on a runway with an alignment of 045°. The isogonic line on the area chart indicates 0°. The compass deviation is 0°. On a take-off with zero wind, the northerly turning error:

is such that the compass will indicate a value noticeably below 045°.

Q6. If the CH = 220°, var. = E12, dev. = W2, what is the corresponding TH?

TH = 230°

Q7. In a steep turn, the northerly turning error on a magnetic compass on the northern hemisphere is:

equal to 180° on a 090° heading in a right turn.

Q8. In the Northern hemisphere, during deceleration following a landing in a Westerly direction, the magnetic compass will indicate :

an apparent turn to the South.

Q9. In the northern hemisphere, during deceleration following a landing in an Easterly direction, the magnetic compass will indicate :

an apparent turn to the South.

Q10. In the Northern Hemisphere, a magnetic compass will normally indicate a turn towards North if:

An aircraft is accelerated while on an east or west heading.

Q11. During deceleration following a landing in Northerly direction, the magnetic compass will indicate :

no apparent turn.

Q12. A pilot wishes to turn right on to a northerly heading with 20° bank at a latitude of 40° North. Using a direct reading compass, in order to achieve this he must stop the turn on to an approximate heading of :

330°

Q13. The compass heading can be derived from the magnetic heading by reference to a:

compass swinging curve

Q14. In the Northern Hemisphere, a magnetic compass will normally indicate a turn towards North if:

an aircraft is accelerated while on an east or west heading.

Q15. A pilot wishes to turn left on to a northerly heading with 10° bank at a latitude of 50° North. Using a direct reading compass, in order to achieve this he must stop the turn on an approximate heading of :

030°

Q16. Concerning magnetic compasses, deviation is:

The angular difference between magnetic North and compass North.

Q17. A remote indicating compass has usually less deviation error than a panel mounted compass because:

it is normally mounted in a part of the airplane where magnetic interference is minimal.

Q18. In the Southern hemisphere, during deceleration following a landing in an Easterly direction, the magnetic compass will indicate :

an apparent turn to the North.

Q19. The main reason for having the centre of gravity below the pivot point in a card-type magnetic compass is:

To compensate for the vertical magnetic component Z such that the magnet system is within approx. 2° of the true horizontal between 60° N and 40° S.

Q20. During deceleration following a landing in a Southerly direction, the magnetic compass will indicate :

no apparent turn.

Q21. Among the errors of a magnetic compass, are errors:

in North seeking, due to bank angle and magnetic heading

Q22. When turning onto a northerly heading the rose of a magnetic compass tends to “undershoot;” when turning onto a southerly heading it tends to “overshoot”: 1) these compass indications are less reliable in the northern hemisphere than in the southern hemisphere. 2) these compass oscillations following a lateral gust are not identical if the aircraft is heading north or south. 3) [truncated/omitted in text]. The combination of correct statements is:

2 and 3.

Q23. The quadrantal deviation of a magnetic compass is corrected by using :

soft iron pieces

Q24. The purpose of compass swinging is to determine the deviation of a magnetic compass :

on any heading

Q25. The purpose of a compass swing is to attempt to coincide the indications of:

compass north and magnetic north.

Q26. A pilot wishes to turn right on to a southerly heading with 20° bank at a latitude of 20° North. Using a direct reading compass, in order to achieve this he must stop the turn on an approximate heading of :

210°

Q27. In the vicinity of the magnetic North Pole the magnetic compass is useless because:

The horizontal component of the magnetic field is too weak.

Q28. Magnetic compass swinging is carried out to reduce as much as possible :

deviation.

Q29. What should be the indication on the magnetic compass when rolling into a standard rate turn to the right from a south heading in the Northern Hemisphere?

The compass will indicate a turn to the right, but at a faster rate than is actually occurring.

Q30. A pilot wishes to turn left on to a southerly heading with 20° bank at a latitude of 20° North. Using a direct reading compass, in order to achieve this he must stop the turn on an approximate heading of :

160°

Q31. The quadrantal deviation of the magnetic compass is due to the action of :

the soft iron pieces influenced by the geomagnetic field

Previous
Submit The Test
Scroll to Top