Radio Navigation - ATPL - Airline Transport Pilot license

Test 10 domande ATPL - Airline Transport Pilot license - Radio Navigation, tempo libero

1 - Which of the following gives the best information about the progress of a flight between 2 en-route waypoints from a RNAV equipment? ETO Elapsed time on route ATA +/- 2NM or better for 75% of the flight time

2 - What is the maximum theoretical range that an aircraft at FL150 can receive signals from a VOR situated 609' above MSL? 220 NM 147 NM 184 NM 156 NM

3 - Which of the figures depicts an Electronic Flight Instrument System (EFIS) display in MAP mode?

Figure 4 Figure 3 Figure 2 Figure 5

4 - How does a NAVSTAR/GPS satellite navigation system receiver recognise which of the received signals belongs to which satellite? Each satellite transmits its signal, on common frequencies, with an individual Pseudo Random Noise code Each satellite transmits its signal on a separate frequency The receiver detects the direction from which the signals are received and compares this information with the calculated positions of the satellites True airspeed

5 - What is the procedure to be followed if, on a flight under IFR conditions using the NAVSTAR/GPS satellite navigation system, the number of satellites required to maintain the RAIM (Receiver Autonomous Integrity Monitoring) function are not available? The flight has to be continued under VFR conditions The flight may be continued using other certificated navigation systems The flight may be continued as planned if at least 4 satellites are available and the pilot monitors the GPS-System manually +/- 2NM or better for 75% of the flight time

6 - Ignoring pulse length and fly-back, a radar facility designed to have a maximum unambiguous range of 50 km will have a PRF (pulses per second) of: 167 6000 330 At the approach end about 150 m to one side of the runway and 300 m from touchdown

7 - A VOR is sited at position 58°00'N 073°00'W where the magnetic variation equals 32°W.An aircraft is located at position 56°00'N 073°00'W where the magnetic variation equals 28°W.The aircraft is on VOR radial: 208 212 180 360

8 - Airborne weather radar systems use a wavelength of approximately 3 cm in order to: Obtain optimum use of the cosecant squared beam Transmit at a higher pulse repetition frequency for extended range Detect the smaller cloud formations as well as large Increase in area and move to the top of the screen

9 - What airborne equipment, if any, is required to be fitted in order that a VDF let-down may be flown? VOR VHF radio VOR/DME None

10 - There are two NDBs, one 20 NM inland, and the other 50 NM inland from the coast.Assuming that the error caused by coastal refraction is the same for both propagations, the extent of the error in a position line plotted by an aircraft that is over water will be: Greater from the beacon that is 50 NM inland The same from both beacons when the aircraft is on a relative bearing of 090° and 270° Greater from the beacon that is 20 NM inland The same from both beacons when the aircraft is on a relative bearing of 180° and 360°

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