Vayudoot Aviation

1. An aircraft tracking to intercept the ILS localiser inbound on the approach side but outside the published coverage angle

can expect signals to give correct indications.

will not normally receive signals.

will receive false on-course or reverse sense signals.

will receive signals without coding.

2. In elevation the upper and lower limits of an ILS glide path transmitter having a 3.0 degree glide slope are

0.35° 0.70°

5.25° 1.35°

3.000 at least 6°

10.0° 35.0°

3. An aircraft carrying out an ILS approach is receiving stronger 150 Hz signals than 90 Hz signals. The correct actions to be taken to place the aircraft on the centreline and on the glidepath are to fly

UP and RIGHT.

DOWN and LEFT.

UP and LEFT

DOWN and RIGHT.

4. An aircraft's Instrument Landing System glideslope and localiser receivers are receiving predominant 90Hz modulated signals. If the aircraft is within the coverage of the ILS, QDM of 264°, it is

south of the localiser and above the glideslope

north of the localiser and above the glideslope.

north of the localiser and below the glideslope.

south of the localiser and below the glideslope.

5. The outer marker of an ILS installation has a visual identification of

continuous dots at a rate of 3 per second, blue light.

continuous dashes at a rate of 2 per second, blue light.

alternating dots and dashes on a blue light.

continuous dashes at a rate of 2 per second, amber light

6. The upper and lower limits of an ILS glide path transmitter having a 3.5° glide slope are

6.125° - 1.575°

5.250° - 1.350°

7.700° - 1.225°

3.850° - 3.150°

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

6 degrees

normal glide slope times 0.70

5.35 degrees

normal glide slope times 1.75

8. An aircraft is attempting to use an ILS approach outside the coverage sectors of an ICAO standard system

From the glideslope needle the captain may be receiving false course and reverse sense indications and from the localiser needle intermittent and incorrect indications.

The aircraft's receiver is not detecting any transmissions and the ILS needle OFF flags are visible.

From the localiser needle the captain may be receiving false course and reverse sense indications and from the glideslope needle intermittent and incorrect indications.

From the localiser needle the captain may be receiving false course and intermittent indications and from the glideslope needle reverse sense and incorrect indications.

9. The specified maximum safe fly up indication on a 5 dot CDI is

just before full scale deflection.

1.3 dots fly up.

half full scale needle deflection above the centre line.

2.5 dots fly up.

10. A category 2 ILS installation encountered in the UK

provides accurate guidance down to 50' above the horizontal plane containing the runway threshold.

has a steep glide path, normally 7.5°.

provides accurate guidance down to the runway and along the runway after landing.

has a false glide path that is exactly twice the true glide path angle.

11. The coverage of an ILS localiser extends to _________either side of the on course line out to a range of ….. nm.

10°, 35

25°, 25

35°, 17

35°, 10

12. The coverage of the Micro-wave Landing System in the UK extends to ______nm up to a height of ______and ______degrees either side of the on course line

35nm; 5,000ft; 40 degrees.

17nm; 2,000ft; 35 degrees.

20nm; 20,000ft; 40 degrees.

35nm; 5,000ft; 20 degrees.

13.
Which of these ILS indicators shows an aircraft on final approach left of the centre line and at maximum safe deviation below the glide path ?

B

C

A

D

14. The visual and aural indications obtained when overflying an ILS middle marker are

one letter in Morse with synchronised white light.

continuous low pitched dashes with synchronised blue light.

alternating medium pitch dots and dashes with amber light.

continuous high pitched dots with synchronised amber light.

15. The coverage of the ILS glideslope in azimuth is

± 8° out to 10nm

± 35° out to 25nm

± 10° out to 8nm

± 12° out to 17nm

Question Bank

Questions for ILS