Radio Navigation - ATPL - Airline Transport Pilot license

Question 1

A radio beacon has an operational range of 10 NM. By what factor should the transmitter power be increased in order to achieve an operational range of 20 NM?

Accepted Answer

Four

Answer

Eight

Answer

Six

Answer

Two

Question 2

In which frequency band do VOR transmitters operate?

Accepted Answer

For position fixing they are all based on the WGS84 ellipsoid

Answer

SHF

Answer

UHF

Answer

EHF

Question 3

A ground radar transmitting at a PRF of 1200 pulses/second will have a maximum unambiguous range of approximately:

Accepted Answer

67 NM

Answer

135 NM

Answer

27 NM

Answer

400 FT/MIN

Question 4

On what carrier frequency does the inner marker transmit?

Accepted Answer

75 MHz.

Answer

Same frequency as the glide path.

Answer

Same frequency as the localizer.

Answer

3.000 Hz.

Question 5

Which of the following affects VDF range?

Accepted Answer

The height of the transmitter and of the receiver.

Answer

Strength of the pilot's voice when transmitting.

Answer

Sky wave propagation.

Answer

Monitor the orbital planes of the satellites

Question 6

An NDB transmits a signal pattern in the horizontal plane which is:

Accepted Answer

Omnidirectional

Answer

A beam rotating at 30 Hz

Answer

A cardioid balanced at 30 Hz

Answer

Bi-lobal circular

Question 7

On which of the following displays are you able to get a direct read-out (no calculation is necessary from the pilot) of the magnetic bearing from the aircraft to the NDB?

Accepted Answer

Moving card ADF and RMI.

Answer

Fixed card ADF only.

Answer

Moving and fixed card ADF.

Answer

Fixed card ADF and RMI.

Question 8

Instrument Landing Systems (ILS) Glide Paths provide azimuth coverage (i) ..... ° each side ofthe localiser centre-line to a distance of (ii) .... NM minimum from the threshold.

Accepted Answer

(i) 8 (ii) 10

Answer

(i) 5 (ii) 8

Answer

(i) 35 (ii) 25

Answer

550 FT/MIN

Question 9

An aircraft, at FL 410 is passing overhead a DME station at mean sea level. The DME indicates approximately:

Accepted Answer

6.8 NM

Answer

6.1 km

Answer

6.1 NM

Answer

It is of no use to civil aviation

Question 10

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 reference system (IRS)?

Accepted Answer

The aircraft's receiver measuring the phase angle of signals received from a number of satellites in known positions

Answer

The GNNS is never used as an input in a multi-sensor system.

Answer

The FMS always uses average position calculated from the GNSS and the IRS.

Answer

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

Quiz Radio Navigation - ATPL - Airline Transport Pilot license

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