Radio Navigation - ATPL - Airline Transport Pilot license

Question 1

Which of the following statements about the accuracy that can be obtained with the differential technique (D-GPS) of the satellite navigation system NAVSTAR/GPS is correct?

Accepted Answer

The nearer a receiver is situated to a D-GPS ground station, the more accurate the position fix

Answer

A D-GPS receiver can detect and correct for SA providing a more accurate position fix

Answer

The increase in accuracy of position fixes is independent of the receiver position in relation to a D-GPS ground station

Answer

Only D-GPS allows position fixes accurate enough for 'Non Precision Approaches'

Question 2

An ADF provides the aircraft with bearing information with respect to a ground station. To do this, the ground station emits a signal pattern which is:

Accepted Answer

Omnidirectional

Answer

Frequency modulated at 30 Hertz

Answer

A beam rotating at 30 Hertz

Answer

Non precision approach on the precision approach end of the runway

Question 3

In which frequency band do Satellite-Assisted Navigation systems (GNSS/GPS) provide position information that is available to civil aircraft?

Accepted Answer

UHF

Answer

VHF

Answer

EHF

Answer

Continuous automatic position reporting using Global Positioning System (GPS) satellites and collision avoidance using TCAS II

Question 4

How does a receiver of the NAVSTAR/GPS satellite navigation system determine the elevation and azimuth data of a satellite relative to the location of the antenna?

Accepted Answer

It calculates it by using Almanac data transmitted by the satellites

Answer

The data is stored in the receiver together with the Pseudo Random Noise (PRN) code

Answer

The data is determined by the satellite and transmitted together with the navigation message

Answer

6

Question 5

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

Accepted Answer

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

Answer

Minimised by computing the average of all signals

Answer

Only significant if the satellites are located at a small elevation angle above the horizon

Answer

Detect the larger water droplets

Question 6

The selection of code 7700 on an aircraft SSR transponder indicates:

Accepted Answer

An emergency

Answer

Unlawful interference with the planned operation of the flight

Answer

Transponder malfunction

Answer

Radio communication failure

Question 7

Which of the following combinations of satellite navigation systems provide the most accurate position fixes in air navigation?

Accepted Answer

260°(M)

Answer

NNSS-Transit and GLONASS

Answer

GLONASS and COSPAS-SARSAT

Answer

NAVSTAR/GPS and NNSS-Transit

Question 8

The aircraft DME receiver cannot lock on to interrogation signals reflected from the ground because:

Accepted Answer

1000 MHz

Answer

DME transmits twin pulses

Answer

Reflections are subject to doppler frequency shift

Answer

DME pulse recurrence rates are varied

Question 9

ICAO Annex 11 defines Area Navigation (RNAV) as a method of navigation which permits aircraft operation on any desired flight path:

Accepted Answer

Within the coverage of station-referenced navigation aids or within the limits of the capability of self-contained aids, or a combination of these

Answer

Outside the coverage of station-referenced navigation aids provided that it is equipped with a minimum of one serviceable self-contained navigation aid

Answer

Outside the coverage of station-referenced navigation aids provided that it is equipped with a minimum of two serviceable self-contained navigation aids

Answer

Simultaneously transmit weather and mapping beams

Question 10

According to the ILS coverage area as defined by ICAO Annex 10, in which of the following situations will the pilot be guaranteed a reliable signal from the localiser?

Accepted Answer

27NM from touchdown inbound and 8° displaced from the localiser centreline.

Answer

19NM from touchdown inbound and 13° displaced from the localiser centreline.

Answer

10NM from touchdown inbound and 38° displaced from the localiser centreline.

Answer

20NM from touchdown inbound and 8° displaced from the localiser centreline.

Quiz Radio Navigation - ATPL - Airline Transport Pilot license

Test 10 Questions ATPL - Airline Transport Pilot license - Radio Navigation, no time limit