Radio Navigation - ATPL - Airline Transport Pilot license

Question 1

What is measured in order to establish aircraft position in relation to the localiser beam on an ILS?

Accepted Answer

The difference in depth between the 90 Hz modulation and the 150 Hz modulation.

Answer

The bearing to the localiser antenna found by means of a loop antenna.

Answer

The difference in phase between the 90 Hz modulation and the 150 Hz modulation.

Answer

The difference in time between the 90 Hz modulation and the 150 Hz modulation.

Question 2

What is the minimum number of NAVSTAR/GPS satellites required to produce an accurate independent 3-D position fix?

Accepted Answer

4

Answer

3

Answer

24

Answer

5

Question 3

In order to plot a bearing from a VOR station, a pilot needs to know the magnetic variation:

Accepted Answer

At the VOR

Answer

At the half-way point between the aircraft and the station

Answer

At the aircraft location

Answer

At both the VOR and aircraft

Question 4

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?

Accepted Answer

284° with the TO flag showing

Answer

104° with the FROM flag showing

Answer

104° with the TO flag showing

Answer

284° with the FROM flag showing

Question 5

Basic RNAV requires a track-keeping accuracy of:

Accepted Answer

+/- 5NM or better for 95% of the flight time

Answer

+/- 3NM or better for 90% of the flight time

Answer

+/- 5NM or better throughout the flight

Answer

+/- 2NM or better for 75% of the flight time

Question 6

Which one of the following lists information given by a basic VOR / DME-based Area Navigation System?

Accepted Answer

Crosstrack distance

Answer

alongtrack distance

Answer

angular course deviation

Answer

Aircraft position in latitude and longitude

Question 7

Assuming a five dot display on either side of the CDI on the ILS localiser cockpit display, what does each of the dots represent approximately?

Accepted Answer

0.5 degrees

Answer

2.5 degrees

Answer

1.5 degrees

Answer

2.0 degrees

Question 8

In which frequency band does an ILS glide slope transmit?

Accepted Answer

UHF

Answer

SHF

Answer

VHF

Answer

EHF

Question 9

What is a VDF referenced to?

Accepted Answer

Magnetic north at the station

Answer

Magnetic north at the aircraft

Answer

True north at the aircraft

Answer

Relative bearing to the aircraft

Question 10

The different segments of the satellite navigation system NAVSTAR/GPS are the:

Accepted Answer

Control, space and user

Answer

Atomic clock, power supply and transponder

Answer

Antenna, the receiver and the central control unit (CDU)

Answer

Main control station, the monitoring station and the ground antennas

Exam questions Radio Navigation - ATPL - Airline Transport Pilot license

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