Radio Nav

1.Which wavelength corresponds to a frequency of5035 mhz?
5.96 mm
5.96 cm
59.6 cm
5.96 m
2.the vdf term meaning true bearing from the station is
1.
2.
3.
4.
Qdm
Qdr
Qte
Quj
3. a class b vdf bearing will have an accuracy of:

1.
2.
3.
4.
+- 2
+-10
+-1
+-5
4.Atc infrom a pilot that they will provide a qgh service. The pilot can expect:
1. Heading and height to fly to arrive overhead the aerodrome
2. Radar vectors to position on final app
3. Qdm information to postion overhead the aerodrome
4. Radar vector to position overhead the aerodrome
5. the max range an atc facility at 1369 ft amsl can provide a service to an aircraft
at fl350 is
1.
2.
3.
4.
280nm
200nm
224nm
238nm
6.the Doppler effect is :

1. The change in frequency caused by the movement of a transmitter and
receiver
2. The change in frequency caused by the movement of a receiver
3. The change in frequency caused by the movement of a transmitter
4. The change in frequency caused by the relative movement between a
transmitter and receiver
7. the lease accurate bearing information taken by an aircraft over the sea from a
ndb will be from
1. A coastal beacon at an acute angle
2. An inland beacon at an acute angle

3. A coastal beacon perpendicular to the coast
4. An inland beacon perpendicular to the coast
8. the accuracy of adf may be affected by :
1.
2.
3.
4.
Night effect, trospheric propagation, quandrantal error

Static interference, sitting error, slant range
Angle of bank, mountain effect, station interference
Angle of bank, static from cb, sitting error
9. the adf error which will casue the needle to hunt is

1.
2.
3.
4.
Night effect
Cb static
Statio interference
Coastal refraction
10. the accuracy of adf by day and excluding compass error is:
1.
2.
3.
4.
+- 1
+-2
+-5
+-10
11. a ndb has emission designator nona1a. this will require the use of bfo for :
1.
2.
3.
4.
Tuning
Identification
Indentification and monitoring
Tuning, identification and monitoring
12. the principle of operation for vor is

1.
2.
3.
4.
Bearing
Bearing
Bearing
Bearing
by
by
by
by
lobe comparison
frequency comparison
search light principle
phase comparison
13. the pilot of an aircraft flying at fl 240 is 250 nm from a vor at 16 ft amsl which
he selects. He receive no signal from the vor. This is because,
1.
2.
3.
4.
The vor is unserviceable

The range of vor is limited to 200nm
The aircraft is beyond line of sight range
Tere are abnormal atmospheric condition
14. the phase difference measure at the aircraft between the vor fm modulation
and the am modulation is 235. The bearing of the beacon from the aircraft is
1.
2.
3.
4.
055
235
145
325
15. in a Doppler vor.

1.
2.
3.
4.
Fm am clockwise
Am fm clockwise
Fm am anti clockwise
Am fm anti clockwise
16. a pilot intends to home to a vor on the 147 radial. The setting he should put on
the obs and the cdi indication will be
1.
2.
3.
4.
147, to
147 from
327 from
327 to
17. An aircraft is 100 nm sw of a vor heading 080. The pilot intends to home to the
vor on the 210 radial. The setting he should put on the obs isand the cdi
indication will be
1.
2.
3.
4.
030, to fly right

030 to fly left
210 from fly right
210 from fly left
18. flying an ils approach the equipment sense that the 90 hz modulation
predominates on both the localize and the glidepath. The indications the pilot will
see are.
1.
2.
3.
4.
Flyy left and fly up

Fly left and fly down
Fly right and fly up
Fly right and fly down
19.on an ils approach using a 3.5 glidepath, the height an aircraft groundspeed
160kts, should be at 3.0 nm is
1.
2.
3.
4.
800 ft
1050 ft
900 f
1500 ft
20. a category 2 ils facility is required to provide guidance to.

1. Below 50 ft
2. Below 200ft
3. The surface
4. Below 100ft
21. when flying downwind abeam the upwind enf of the runway the indication from
the ils on the cdi will be.
1.
2.
3.
4.
In the correct sense for the localizer and no glidepath signal

Erratic on both localizer and glidepath
Erratic on the localizer and in the correct sense on the glide path
No locailse signal and in correct sense for glidepath
22. the azimuth coverage of a 3 glidepathis

1.
2.
3.
4.
+- 35 to 17nm
+-10 to 25nm
+-8 to 10nm
+-10 to 8 nm
23. the type of radar which has no minimum range restriction is

1.
2.
3.
4.
Primary cw radar
Primary pulsed radar
Secondary cw radar
Secondary pulsed radar
24. the max theroritcial range of a radar is determined by

1.
2.
3.
4.
Power
Pw
Beamwidth
Prf
25.the time interval between the transmission ofa pulse and receipt of the echo
from a targent is 925.5 microseconds. The range of the target is
1.
2.
3.
4.
37.5nm
75nm
150nm
300nm
26. an advantage of a slotted antenna over a parabolic reflector are

1.
2.
3.
4.
Side loves removed

360 scan without any rotation requirement
Less power required
Higher data rate possible
27. the best resolution will be achieved on a radar display with

1. High power output and large parabolic reflector
2. Narrow beamwidth and narrow pulse with
3. Low frequency and small parabolic reflector

4. Wide beamwidth and large pulseiwdth
28. the awr operatring frequency is
1.
2.
3.
4.
9375 mhz
9375 ghz
937.5 mhx
93.75 ghx
29.a cloud detected at 60nm on the awr of an aircraft flying at fl390 just disappears
form the screen when the tilt is selected to 2 up. If the beamwiidth of the radar is 6,
then the altitude of the clod tops is
1.
2.
3.
4.
6000 ft
45000 ft
33000 ft
63000 ft

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1.Which wavelength corresponds to a frequency of5035 mhz?

3. a class b vdf bearing will have an accuracy of:

6.the Doppler effect is :

2. An inland beacon at an acute angle

Night effect, trospheric propagation, quandrantal error

9. the adf error which will casue the needle to hunt is

12. the principle of operation for vor is

The vor is unserviceable

15. in a Doppler vor.

030, to fly right

Flyy left and fly up

20. a category 2 ils facility is required to provide guidance to.

In the correct sense for the localizer and no glidepath signal

22. the azimuth coverage of a 3 glidepathis

23. the type of radar which has no minimum range restriction is

24. the max theroritcial range of a radar is determined by

26. an advantage of a slotted antenna over a parabolic reflector are

Side loves removed

27. the best resolution will be achieved on a radar display with

3. Low frequency and small parabolic reflector

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