Question Bank

1. Every 10ktt decrease in groundspeed, on a 3°ILS glide path, will require an approximate

2. At 0430 an aircraft is in level cruise flight at groundspeed of 350 knots, at FL370, 165 nm from a VOR. It is required to descend at a mean rate of 1800 feet/ min, to be at FL 80 overhead the VOR. What is the latest time to commence descent, if the mean ground speed in the descent is to be 200 knots?

3. The sensitive area of an ILS is the area aircraft may not enter when

4. The principle of operation of an ILS Localiser transmitter is based on two overlapping lobes that are transmitted on (i) _____ frequencies and carry different (ii) _______

5. Assuming zero wind, what distance is covered by an aircraft descending 15000 FT with a TAS of 320 kt and maintaining a rate of descent of 3000 FT/MIN?

6. Instrument Landing System (ILS) Glide Paths provide azimuth coverage (i) _____° each side of the localiser center line to a distance of (ii) ______ NM from the threshold

7. On an ILS ROD is function of

8. An aircraft flying down a 3° ILS glide slope is at 25 nm DME rom the threshold. Using the 1 in 60 rule and approximating 1 nm to 6000 ft, calculate the aircraft height above the runway threshold, assuming that the ILS glide path crosses the threshold at height of 50 ft?

9. The rate of descent required to maintain a 3.25° glide slope at a groundspeed of 140kt is approximately

10. The MIDDLE MARKER of an Instrument Landing System (ILS) facility is identified audibly and visually by a series of

11. What approximately rate of descent is required in order to maintain a 3° glide path at a groundspeed of 90kt?

12. Category II ILS provides accurate guidance to

13. An aircraft carrying out a 3° glide path ILS approach experiences a reduction in Ground speed from 150kt at the outer marker to 120kt over the threshold. The effect of this change in groundspeed on the aircraft's rate of descent will be a decrease of approximately

14. The visual Indication of passing the outer marker is a ____ light with a series of ____ at 400 Hz

15. Inner marker transmits on 75MHz and has an aural frequency of

16. Which of the following is an ILS localiser frequency?

17. A Cat III ILS glide path transmitter provides reliable guidance information down to

18. The inner marker of an ILS installation identifies itself with

19. In which frequency band does an ILS glide slope transmit?

20. At a distance of 20 NM from the localizer transmitter, the horizontal extent of the localizer coverage is

21. An aircraft at FL370 is required to commence descent when 100 NM from a DME facility and to cross the station at FL120. If the mean GS during the descent is 396 kt, the minimum rate of descent required is approximately?

22. When can an ILS back beam be received

23. Given: TAS = 197 Kt, True course = 240°, W/V = 180/30 kt. Descent is initiated at FL 220 and completed at FL 40. Distance to be covered during descent is 39 NM. What is the approximate rate of descent?

24. What is the approximate angular coverage of reliable navigation information for a 3° ILS glide path out to a distance of 10NM?

25. At what approximate distance from the threshold would an aircraft intercept the glide path if the aircraft height is 2500 feet, and the ILS glide path angle is 3° ?

26. If there is a 15 knot increase in headwind by what amount must the rate of descent be changed in order to maintain a 3° glide slope?

27. What will be the rate of descent when flying down a 7% glide slope, at a groundspeed of 250 knots?

28. If there is a 12 knot increase in headwind by what amount must the rate of descent be changed in order to maintain a 3° glide slope?

29. The upper limit of the vertical coverage of the localizer must be

30. Convert 70 meters/ second into knots?

31. 850 FT/MIN equals?

32. An aircraft tracking to intercept the Instrument Landing System (ILS) localiser inbound on the approach side, outside the published ILS coverage angle

33. The OUTER MARKER of an Instrument Landing System (ILS) facility transmits on a frequency of

34. At 0422 an aircraft at FL370, GS 320kt, is on the direct track to VOR 'X' 185 NM distant. The aircraft is required to cross VOR 'X' at FL80. For a mean rate of descent of 1800 FT/MIN at a mean GS of 232 kt, the latest time at which to commence descent is?

35. What is the colour sequence when passing over an Outer, Middle and Inner Marker beacon?

36. The minimum angle at which a false glide path is likely to be encountered on a 3° glide path is

37. The outer marker of an ILS with a 3° glide slope is located 4.6NM from the threshold. Assuming a glide slope height of 50ft above the threshold, the approximate height of an aircraft passing the outer marker is

38. A typical ILS glide path frequency, in MHz , is

39. The amplitude modulation and the colour of an outer marker (OM) is

40. ILS is subject to false glide paths resulting from

41. On an ILS approach you receive more of the 90 Hz modulation than the 150 Hz modulation. The action you should take is

42. In an ILS system, the identification

43. In full ILS system which marker is optional?

44. Assuming a five dot display, what does each of the dots on either side of the ILS localizer cockpit display represent

45. A Category 1 Instrument Landing System (ILS) ground installation provides accurate guidance from coverage limit down to

46. The rate of descent in feet per minute, appropriate to a 3.2° ILS glide path at an approach groundspeed of 110 kts is

47. The horizontal deviation on the expanded ILS display represented by one dot is approximately

48. Where, in relation to the runway, is the ILS locallser transmitting aerial normally situated?

49. For a 2.7 degree glide path on a Category 1 ILS the vertical coverage is

50. The reason why pre take-off holding areas are sometimes further from the active runway when ILS Category II and III landing procedures are in progress than during good weather operations is