Radio Navigation - ATPL - Airline Transport Pilot license

Question 1

In relation to the satellite navigation system NAVSTAR/GPS, 'All in View' is a term used when a receiver:

Accepted Answer

Is tracking more than the required 4 satellites and can instantly replace any lost signal with another already being monitored

Answer

Is receiving the signals of all visible satellites but tracking only those of the 4 with the best geometric coverage

Answer

Is receiving and tracking the signals of all 24 operational satellites simultaneously

Answer

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

Question 2

In order to measure the radial from a VOR, the aircraft VOR receiver

Accepted Answer

Measures the time difference between sending the interrogation signal and receiving the transponder signal.

Answer

Measures the time difference between reception of the two signals transmitted from the ground installation.

Answer

Measures the phase difference between the reference phase and the variable phase of the signal.

Answer

Uses pulse technique to determine the radial.

Question 3

The principle used in VOR bearing measurement is:

Accepted Answer

Phase comparison

Answer

Difference in depth of modulation

Answer

Beat frequency discrimination

Answer

Envelope matching

Question 4

Which of the following statements about the accuracy that can be obtained with the LAAS (local area augmentation system) of the satellite navigation system of the satellite navigation system NAVSTAR/GPS is correct?

Accepted Answer

Pole to pole

Answer

A LAAS cannot correct for satellite timing and orbital position error.

Answer

The increase in accuracy of position fixes is independent of the aircraft position in relation to the LAAS ground reference station.

Answer

A LAAS corrects the position of the aircraft by relaying the information via a geo-stationary satellite.

Question 5

On what data is a VOR/DME Area Navigation system operating in the dead reckoning mode?

Accepted Answer

Heading from the aircraft compass

Answer

TAS from the Air Data Computer

Answer

TAS from the Air Data Computer

Answer

Near the coast and the bearing crosses the coast at right angles

Question 6

A 3-D RNAV system has capability in:

Accepted Answer

True altitude is obtained from mode S

Answer

A horizontal plane and cruise management system

Answer

A horizontal plane and speed management system

Answer

A horizontal plane and vertical plane and timing function

Question 7

How long does it take a NAVSTAR/GPS satellite to orbit the earth?

Accepted Answer

Approximately 12 hours (1/2 of a sidereal day)

Answer

Approximately 24 hours (one sidereal day)

Answer

365 days because the satellites are located in a geostationary orbit

Answer

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

Question 8

An Omni-bearing selector (OBS) shows full deflection to the left when within range of a serviceable VOR.What angular deviation are you from the selected radial?

Accepted Answer

10° or more

Answer

Less than 10°

Answer

2.5 or more

Answer

1.5° or more

Question 9

If a failed RMI rose is stuck on 090° and the ADF pointer indicates 225°, the relative bearing to the station will be:

Accepted Answer

135°.

Answer

Impossible to read, due to failure RMI.

Answer

315°.

Answer

225°.

Question 10

Which of the following is one of the functions of the Computer in a basic RNAV system?

Accepted Answer

It transfers the information given by a VOR/DME station into tracking and distance indications to any chosen Phantom Station/waypoint

Answer

It calculates cross track information for NDB approaches

Answer

It automatically selects the two strongest transmitters for the Area-Nav-Mode and continues working by memory in case one of the two necessary station goes off the air

Answer

VOR/DME Area Navigation computer is receiving neither radial nor distance data information from VOR/DME stations.

Quiz Radio Navigation - ATPL - Airline Transport Pilot license

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