EASA Questions Radio Navigation Area Navigation Systems

Question : 1 - 20 21 - 40 41 - 60 61 - 80

Question 1 - 5 of 20 (10 points each question)

1) An aircraft is required to approach a VOR station via the 244° radial. In order to obtain correct sense indications the deviation indicator should be set to: Report

244° with the FROM flag showing

244° with the TO flag showing

064� with the TO flag showing

2) An aircraft on a heading of 280°(M) is on a bearing of 090°(M) from a VOR. The bearing you should select on the OMNI bearing selector to centralise the VOR/ILS left/right deviation needle with a 'TO' indication is: Report

280°

270°

090�

3) An aircraft is required to approach a VOR via the 104° radial. Which of the following settings should be made on the VOR/ILS deviation indicator? Report

284° with the TO flag showing

284° with the FROM flag showing

104� with the TO flag showing

4) The reason why pre take-off holding areas are sometimes further from the active runway when ILS Category 2 and 3 landing procedures are in progress than during good weather operations is: Report

heavy precipitation may disturb guidance signals

to increase distance from the runway during offset approach operations

aircraft manoeuvring near the runway may disturb guidance signals

5) Which one of the following switch positions should be used when selecting a code on the Transponder? Report

NORMAL

OFF

STBY (Standby)

6) A DME in tracking mode subsequently experiences a reduction in signal strength will switch the equipment in the first instance to: Report

search mode

standby mode

memory mode

7) What are the effects, if any, of shadowing by parts of the aircraft (e.g. wing) on the reception of signals from NAVSTAR/GPS satellites? Report

The signals will be distorted, however the error can be corrected for using an algorithm and information from unaffected signals

It has no influence because high frequency signals are unaffected

It may prevent the reception of signals

8) Which one of the following is an advantages of a multi-sensor system using inputs from a global navigation satellite system (GNSS) and an inertial navigational system (INS)? Report

The GNSS can be used to update a drifting INS

The activation of 'Selective Availability' can be recognised by the INS

The average position calculated from data provided by both systems increases overall accuracy

9) The influence of the ionosphere on the accuracy of the satellite navigation system NAVSTAR/GPS is: Report

negligible

minimised by the receiver using a model of the atmosphere and comparing signals transmitted by the satellites

minimised by computing the average of all signals

10) In the NAVSTAR/GPS satellite navigation system, receiver clock error: Report

can be minimised by synchronisation of the receiver clock with the satellite clocks

is negligible small because of the great accuracy the atomic clocks installed in the satellites

is corrected by using signals from four satellites

11) Which one of the following disturbances is most likely to cause the greatest inaccuracy in ADF bearings? Report

Quadrantal error

Precipitation interference

Local thunderstorm activity

12) Given: Course Deviation Indicator (CDI) for a VOR is selected to 090°. From/To indicator indicates "TO". CDI needle is deflected halfway to the right. On what radial is the aircraft? Report

265

095

275

13) Of what use, if any, is a military TACAN station to civil aviation ? Report

It is of no use to civil aviation

It can provide DME distance

It can provide a magnetic bearing

14) A DME that has difficulty obtaining a "lock-on": (NOTE: PRF = pulse recurrence frequency, PPS = pulses per second) Report

stays in search mode but reduces PRF to max. 60 PPS after 15000 pulse pairs have been transmitted

stays in search mode without a reduction in PRF

stays in search mode but reduces PRF to max. 60 PPS after 100 seconds

15) If the reference phase differs 30° with the variable phase the radial from the VOR station will be : Report

030°

330°

210�

16) Which of the following is an ILS localiser frequency? Report

112.10 MHz

109.15 MHz

108.25 MHz

17) The maximum range of primary radar depends on : Report

pulse length

pulse recurrence frequency

wave length

18) Which of the following lists are all errors that affect the accuracy and reliability of the Satellite-Assisted Navigation system (GNSS/GPS)? Report

Satellite mutual interference; frequency drift; satellite to ground time lag

Satellite clock; satellite ephemeris; atmospheric propagation

Satellite mutual interference; satellite ephemeris; atmospheric propagation

19) The ATC transponder system,excluding Mode S, contains : Report

four modes, each 4096 codes

two modes, each 1024 codes

two modes, each of 4096 codes

20) In order to indicate an emergency situation, the aircraft Secondary Surveillance Radar (SSR) transponder should be set to: Report

7600

7500

7700

EASA Questions Radio Navigation Area Navigation Systems

Radio Aids

Basic Radar Principles

Area Navigation Systems