Radio Navigation - ATPL - Airline Transport Pilot Licence

Question 1

Airborne weather radar systems use a wavelength of approximately 3 cm in order to:

Accepted Answer

Detect the larger water droplets

Answer

Obtain optimum use of the cosecant squared beam

Answer

Transmit at a higher pulse repetition frequency for extended range

Answer

Detect the smaller cloud formations as well as large

Question 2

In the legacy GPS signal structure, which unencrypted civil code is transmitted on the L1 carrier?

Accepted Answer

L1-coarse acquisition (C/A)

Answer

L2-for communications purpose

Answer

L1-precise (P)

Answer

L2-coarse acquisition (C/A)

Question 3

An aircraft tracking to intercept the Instrument Landing System (ILS) localiser inbound on the approach side, outside the published ILS coverage angle:

Accepted Answer

May receive false course indications

Answer

Will receive signals without identification coding

Answer

Only glide path information is available

Answer

Can expect signals to give correct indications

Question 4

Which of the following errors is associated with the use of VOR?

Accepted Answer

Scalloping.

Answer

Coastal refraction.

Answer

Night effect.

Answer

Quadrantal error.

Question 5

For a GNSS/multi-sensor navigation installation to be used for an intended IFR operation, which prerequisite is correct?

Accepted Answer

The navigation installation must be approved for the intended operation, with the prescribed IFR equipment installed and serviceable.

Answer

The GPS receiver must be able to decode the P-code

Answer

The RAIM-function of the GPS receiver must be able to monitor all prescribed navigation systems

Answer

Multi-sensor systems are not certificated for flights under IFR conditions

Question 6

What is the minimum number of satellites required by a GPS in order to obtain a three dimensional fix?

Accepted Answer

4

Answer

3

Answer

5

Answer

6

Question 7

The main factor which determines the minimum range that can be measured by a pulsed radar is pulse:

Accepted Answer

Length

Answer

Amplitude

Answer

Repetition rate

Answer

Frequency

Question 8

The indicated range from a DME station is:

Accepted Answer

Slant range.

Answer

0 when passing overhead the station.

Answer

Ground range.

Answer

Ground range only if the beacon is co-located with VOR.

Question 9

An aircraft passes overhead a DME station at 12000 feet above the station. At that time, the DME reading will be:

Accepted Answer

Approximately 2 NM.

Answer

0 NM.

Answer

Fluctuating and not significant.

Answer

FLAG/OFF, the aircraft is within the cone of silence.

Question 10

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

SHF

Exam questions Radio Navigation - ATPL - Airline Transport Pilot Licence

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

Exam questions Radio Navigation - ATPL - Airline Transport Pilot Licence

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

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