Vayudoot Aviation

1. In NAVSTAR/GPS the space segment

Provides the positional information to the receiver

sends information for receiver to determine latitude, longitude and time

relays positional data from the control segment

the receiver interrogates the satellite and the satellite provides positional information

2. The number of satellites required to provide a 3D fix without RAIM is

6

4

3

5

3. The WGS84 model of the earth is

an exact model of the earth

a geoid

an ellipse

a sphere

4. The NAVSTAR/GPS constellation comprises

24 satellites in 8 orbits

24 satellites in 6 orbits

24 satellites in 4 orbits

24 satellites in 3 orbits

5. Using differential GNSS for a non-precision approach, the height reference is

radio

radio or GNSS

barometric

GNSS

6. The navigation database in the FMS

may be modified by the operations staff to meet routing requirements

may be modified by the pilot to meet routing requirements

is read only

may be modified by national aviation authorities to meet national requirements

7. When identifying a co-located VOR/DME the following signals are heard in the Morse code every 30 seconds

4 identifications with the DME at a higher tone

4 identifications with the DME at a lower tone

no DME identification, but if the VOR identification is present and a range is indicated then this shows that both are serviceable

4 identifications in the same tone

8. The contents of the navigation and systems message from NAVSTAR/GPS SVs include

satellite clock error, almanac data, ionospheric propagation information

position accuracy verification, satellite clock time and clock error

satellite clock error, almanac data, satellite position error

ionospheric propagation information, X, Y & Z co-ordinates and corrections, satellite clock time and error

9. The amplitude modulation of the ILS outer marker is ……. and it illuminates the …… light in the cockpit

1300 Hz, amber

400 Hz, amber

1300 Hz, blue

400 Hz, blue

10. The frequency band of the ILS glidepath is

VHF

UHF

SHF

VLF

11. To double the range of a primary radar, the power must be increased by a factor of

4

8

16

2

12. In a RNAV system the DME is tuned

by what is selected on the pilots DME and hence is tuned manually

by selecting DMEs to give suitable angle of cut to get a fix automatically

automatically by taking pilot's DME selection

by automatically selecting the nearest suitable DME

13. A radio beacon has a range of 10 nm. By what factor should the power be increased to achieve a range of 20 nm?

8

4

16

2

14. ATC area surveillance radars will normally operate to a maximum range of

100 nm

200 nm

400 nm

300 nm

15. An aircraft at FL360 is 10 nm plan range from a DME. The DME reading in the aircraft will be

10nm

8nm

13.6nm

11.7nm

16. What is the wavelength corresponding to a frequency of 375 kHz?

8 m

8000m

800m

80m

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

fly right and down

fly left and down

fly left and up

fly right and up

18. When converting VOR and ADF bearings to true, the variation at the …… should be used for VOR and at the …… for ADF

aircraft, station

aircraft, aircraft

station, aircraft

station, station

19. The principle of operation of the ILS localiser transmitter is that it transmits two overlapping lobes on

different frequencies with different phases

the same frequency with different amplitude modulations

the same frequency with different phases

different frequencies with different amplitude modulations

20. Which of the following is an advantage of a VDF let down?

no special equipment required in the aircraft or on the ground

only a VHF radio is needed in the aircraft

it is pilot interpreted, so ATC is not required

no equipment required in the aircraft

21. How does night effect affect ADF?

Causes false bearings as the goniometer locks onto the skywave

Interference from other NDB's which is worst at dusk and when due east of the station

Phase shift in the received signal giving random bearing errors

Skywave interference which affects the null and is worst at dawn and dusk

22. The colour recommended in JAR25 for the active route is

green

magenta

amber

cyan

23. When midway between two waypoints, how can the pilot best check the progress of the aircraft?

by using the computed ETA for the next waypoint

by using the ATD at the previous waypoint

by using the ETA at the destination

by using the ATA at the previous waypoint

24. With reference to SSR, what code is used to indicate transponder altitude failure?

0000

4096

9999

7600

25. The track line on an EFIS display indicates

the actual aircraft track over the ground, which will coincide with the aircraft heading when there is zero drift

that a manual heading has been selected

the aircraft actual track which will coincide with the planned track when there is zero drift

that a manual track has been selected

26. The DME in an aircraft flying at FL430 shows a range of 15 nm from a beacon at an elevation of 167 ft. The plan range is

13.5 nm

17.6 nm

16.5 nm

15 nm

27. In a primary pulsed radar the ability to discriminate in azimuth is a factor of

Rate of rotation

Beamwidth

Pulse recurrence rate

Pulse width

28. When tracking a VOR radial inbound the aircraft would fly

a constant heading

a great circle track

a constant track

a rhumb line track

29. The ISO-ECHO circuit is incorporated in the AWR

to allow ground mapping

to alert pilots to the presence of cloud

to allow simultaneous mapping and cloud detection

to display areas of turbulence in cloud

30. Which GNSS system can be used for IFR flights in Europe?

NAVSTAR/GPS

TNSS transit

GLONASS

COSPAS/SARSAT

31.
Refer to diagram E of Appendix A. The track from ZAPPO to BURDY is

205°(M)

064°(T)

205°(T)

064°(M)

32. Which of the following is independent of external inputs?

INS

VOR/DME

Direct reading magnetic compass

ADF

33. The positioning of a GNSS aerial on an aircraft is

on top of the fuselage close to the centre of gravity

on the fuselage as close as possible to the receiver

under the fuselage

in the fin

34. The time from the transmission of the interrogation pulse to the receipt of the reply from the DME ground station is 2000 microseconds (ignore the delay at the DME). The slant range is

370 nm

165 nm

330 nm

185 nm

35. The cosecant squared beam is used for mapping in the AWR because

a larger area of ground is illuminated by the beam

a greater range can be achieved

it allows cloud detection to be effected whilst mapping

wider beam is produced in azimuth to give a greater coverage

36. The almanac in the receiver

determines selective availability

is used to determine which satellites are above the horizon

is used to determine receiver clock error

assigns the PRN codes to the satellites

37. The colour recommended in JAR25 for the display of turbulence is

white or magenta

red

black

amber

38. The range arcs in the expanded and map modes are recommended by JAR25 to be coloured

magenta

green

cyan

white

39. For the FMC the take-off speeds, V1, VR and V2 are found

in the checklist and input manually

in the operating manual and input to the FMC

in the performance database

in the navigation database

40.
Refer to Appendix A. Diagram F represents

ILS

VOR

EXP VOR

NAV

41. The EHSI is showing 5° fly right with a TO indication. The aircraft heading is 280°(M) and the required track is 270°. The radial is

085

275

265

095

42. The accuracy of SSR mode C altitude as displayed to the air traffic controller is

+/-25 ft

+/-100 ft

+/-75 ft

+/-50 ft

43. The frequency band of MLS is

UHF

VLF

SHF

VHF

44. On an AWR colour display, the sequence of colours indicating increasing water droplet size is

blue, green, red

blue, amber, green

green, yellow, red

black, amber, red

45. The airborne weather radar (AWR) cannot detect

wet hail

snow

dry hail

moderate rain

46. If the signal from a VOR is lost, how is this shown on the B737-400 EHSI display?

by showing a fail flag alongside the deviation bar

by removal of the deviation bar and pointer

an amber FAIL message appears in the frequency location

a flashing red FAIL message appears in the frequency location

47. What are the basic elements transmitted by NAVSTAR/GPS satellites? i. offset of the satellite clock from GMT ii. ephemeris data iii. health data iv. ionospheric delays v. solar activity

i, ii, iii, iv and v

i, i and iv

ii, iii and iv

i, i and iii

48. The JAR25 recommendation for the colour of a VORTAC which is not in use by the FMC is

white

magenta

cyan

green

49. With normal SSR mode C altitude coding the aircraft replies by sending back a train of up to 12 pulses contained between 2 framing pulses with

2048 codes in 3 blocks

4096 codes in 3 blocks

2048 codes in 4 blocks

4096 codes in 4 blocks

50. Which EHSI modes cannot show AWR information?

FULL VOR/ILS/NAV and MAP

PLAN and FULL VOR/ILS/NAV

CTR MAP and PLAN

PLAN, CTR MAP and EXP VOR/ILS/NAV

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