Aeron.Syst Test2

1. Differential GPS calculates the corrections directly for. A. receiver position. B. receiver distance (range) to each visible satellite. C. satellite clocks. D. ephemerides of each visible satellite.

2. The equation below is a pseudorange equation of a GPS satellite. The delta t (t) states for: A. receiver-satellite range expressed in time units. B. the time difference (signal transmission to reception) measured by the receiver. C. signal delay in ionosphere. D. signal delay in troposphere.

3. GPS multipath error is caused by. A. signal refraction in ionosphere. B. signal reflection on obstacles. C. signal refraction in troposphere. D. relativistic effects.

4. Enhanced Ground Proximity Warning System aims to avoid. A. controlled flight into terrain. B. mid-air collision. C. flying into windshear conditions. D. technical defects on board aircraft.

5. The GPS satellites are located on the orbits which are. A. geostationary. B. circular. C. geosynchronous. D. elliptical.

6. Doppler VOR when compared to Conventional VOR is. A. more accurate. B. less accurate. C. has no rotating antenna. D. requires special DVOR receiver (CVOR receiver does not work with DVOR radio beacon).

7. Mark images with pitot probes. A. B. C. D.

8. Provide the correct description for the ILS diagram. A. 2 - marker, 3 - glide slope, 1 - localizer. B. 1 - marker, 2 - glide slope, 3 - localizer. C. 1 - marker, 3 - glide slope, 2 - localizer. D. 3 - marker, 2 - glide slope, 1 - localizer.

9. What information is given by this TCAS indicator. A. there is one traffic advisory. B. there is one resolution advisory. C. descent with a rate of 1500-2000 feet per minute is necessary to avoid collision. D. descent with a rate of 1.5-2.0 feet per minute is necessary to avoid collision.

10. Pitot-static system measures. A. dynamic and static pressure directly, total pressure can be calculated. B. total and static pressure directly, dynamic pressure can be calculated. C. dynamic and total pressure directly, static pressure can be calculated. D. total, dynamic and static pressure directly.

11. What type of modulation is shown in the image?. A. amplitude modulation. B. frequency modulation. C. phase modulation. D. digital modulation.

12. Guidance (in GNC concept) answers the question. A. what is the position of the vehicle. B. how to get to the destination. C. how to deflect the control surfaces of the aircraft. D. what is an attitude of the vehicle.

13. To get an unambiguous position it is necessary to receive signal(s) from X NDB station(s) or signal(s) from Y VOR/DME station(s). A. X=1, Y=2. B. X=2, Y=1. C. X=2, Y=2. D. X=1, Y=1.

14. What will GPS receiver do when it receives signals from two satellites. A. will not determine the position. B. will determine the 2D position. C. will determine the 3D position. D. will determine the altitude only.

15. GPS wide area augmentation systems (like EGNOS). A. are always supported by pseudolites. B. transmit the corrections on GPS L1 frequency via ground-based radio modems. C. transmit the corrections on GPS L1 frequency via satellite link. D. generate the network of ionospheric corrections.

16. Mark all true about ECEF (Earth Centered Earth Fixed) coordinate system. A. originates in the center of Earth. B. X-Y plane coincides with equatorial plane. C. X-Y plane is parallel to local horizon plane on equator. D. Z axis passes through North Pole.

17. TCAS II recommends as part of the RA function. A. airspeed change. B. heading and airspeed change. C. altitude change. D. heading change.

18. Which system(s) belong(s) to the GNSS family. A. GPS. B. GLONASS. C. GPWS. D. TCAS.

19. The GPS ionospheric refraction error may be reduced by. A. The GPS ionospheric refraction error may be reduced by. B. coding the same signal into two different carrier wave frequencies. C. use of differential measurement techniques. D. use of EGNOS system.

20. Loxodrome. A. Crosses meridians at the same angle. B. Is the shortest path between two points on Earth. C. is usually a path taken by the airplane travelling form Warsaw to New York. D. for given points A and B is longer than orthodrome between these points.

21.Capacity of DME system is about. A. 5 aircrafts. B. 15 aircrafts. C. More than 100 aircrafts. D. unlimited.

22. Factors that distinguish ICAO landing categories are. A. Decision height. B. Horizontal visibility in decision point. C. Horizontal visibility on runway. D. Number of runways at the airport.

23. NDB transmits radio signal. A. The same in all directions. B. That is dependent on transmission direction. C. On frequency of about hundreds of kHz. D. On frequency of about hundreds of MHz. E. On frequency of about hundreds of GHz.

24. VOR transmits signal. A. The same in all directions. B. That is dependent on transmission direction. C. On frequency lower than 500 kHz. D. On frequency higher than 100 MHz.

25. Ionosphere influence on radio wave depends on. A. Wave phase. B. Wave frequency. C. Wave length. D. Method of modulation.

26. Magnetic inclination is. A. The angle made by a compass needle with the local horizontal plane. B. Called magnetic dip. C. The angle between the direction of the north end of a compass points and true north. D. The angle between the direction of the north end of a compass points and magnetic north. E. The angle made by a compass needle with the equatorial plane.

27. The shortest path between two points on the Earth is. A. Loxodrome. B. Orthodrome. C. Isoline of equal bearing. D. Isoline of equal distance.

28. Line of position is. A. The set of geometric points where navigation parameter is constant. B. The set of geometric points where navigation parameter is increasing. C. Flight path. D. Assumed position where object will be in nearest future.

29. Altitude measured from mean sea level is named. A. Relative altitude. B. Absolute altitude. C. True altitude. D. Pressure altitude.

30. Radio Wave modulation methods. A. Amplitude. B. Frequency. C. Radial. D. Phase.

31. GNSS augmentation system called EGNOS. A. Generates the network of ionospheric corrections. B. Transmits the corrections via ground based transmitters directly to users. C. Transmits the corrections on L1 (~1.5 GHz) frequency. D. In its close proximity interferes with the GNSS signal.

32. The errors of GPS system results from. A. Ionospheric refraction. B. Tropospheric refraction. C. Relativistic phenomenon. D. Efemerides inaccuracies.

33. Orbits of GPS satellites are. A. Circular. B. Distant from Earth center of about 10 000 km. C. Inclined to the equator at the same angle. D. Satellite circulation time around the Earth is about 48 hrs.

34. The ground based GNSS augmentation system is. A. MSAS. B. LAAS. C. EGNOS. D. WAAS.

35. Fluxgate compass. A. The principle of operation: induction of electricity in measurement coil. B. Principle of operation change of resistance of measurement coil. C. May be built of primary and secondary coil. D. Is built exclusively of primary coil.

36. To compute 3D position (GPS) it is necessary to receive signal at least from. A. 2 satellites. B. 3 satellites. C. 4 satellites. D. 5 satellites.

37. Lines where inclination has the same value are named. A. Isodynamic lines. B. Isoclinic. C. Isogonic. D. Agonic.

38. ILS consists of the following radio beacons. A. Back course. B. Glide Slope. C. Touchdown. D. Localizer.

39. The range of a typical ILS is about. A. 5 NM (nautical miles). B. 25 NM. C. 75 NM. D. 150 NM.

40. EGPWS is to warn crew in case of. A. Windshear. B. Possible ground collision. C. Atmospheric precipitation. D. Possible mid-air collision.

41. Pitot pipe is used to measure: A. Static pressure. B. Ram Pressure. Temperature. D. Angle of attack.

42. Real Velocity TAS is the velocity. A.In relation to air flow when density is constant. B.In relation to air flow when density is dependent on the altitude. C.In relation to the ground. D.In relation to the speed of sound.

43. Gyroscopic indicator of course. A. Calculates relative change of the course. B. Calculates absolute change of the course. C. Is a gyroscope of 3 levels of freedom and horizontal axis of rotation. D. Is a gyroscope of 3 levels of freedom and vertical axis of rotation.

44. Flight parameters calculated by the Centre of Aeronautical Data. A. Height (amplitude). B. Mach’s number. C. Temperature of the air. D. Angle of attack.

45. Parallel measurement of static and total pressure is done by. A. Pitot’s pipe. B. Prandtl’s pipe. C. Hole in the body of the cabin. D. Bernoulli’s probe.

46. Measurement system’s Velocity IAS is the velocity. A. In relation to air flow when density is constant. B. In relation to air flow when density is dependent on the altitude. C. In relation to the ground. D. In relation to the speed of sound.

48. In the radio transmitter the carrier wave is created. A. In the low frequency amp. B. In the modulator. C. In the generator of high frequency. D. In the high frequency amp.

49. Aeronautical roads/paths are bounded in the horizontal direction by. A. Constant geodesian height. B. Constant atmospheric pressure. C. Constant height above the ground. D. Constant height above MSL.

50. Corrections of air pressure in the Centre of Aeronautical Data depends on the angle of. A. Course. B. Road. C. Attack.

51. In the Centre of Aeronautical Data planes velocity is measured in relation to. A. Ground. B. Navigation System. C. medium/centre. D. pressure.

52. Magnetic declination is. A. the angle between the direction of the north end of a compass points and true north. B. the angle between the direction of the north end of a compass points and magnetic north. C. the angle made by a compass needle with the local horizontal plane. D. the angle made by a compass needle with the equatorial plane.

53. Flight data recorder: A. must preserve recorded information from at least last 50h. B. can be switched off during flight. C. must automatically switch off immediately after crash. D. must be high temperature resistive.

54. Resel's theorem says that: A. the vector of angular momentum of the gyroscope is equal to the vector of momentum of external forces. B. angular momentum depends on radial velocity of gyroscope. C. module of precession does not depend on angular momentum. D. Coriolis force does not affect angular momentum.

55. Attitude indicator is used to indicate: A. Pitch. B. Bank. C. roll. D. pitch, bank and roll.

56. QAR ( Quick Access Recorder ): a. must be proof of data loss during a crash. b. are used to monitor planes parameters. c. enables quick access to the recorded flight parameters. d. use photosensitive membrane to store data.

57. Variometer is used to measure: a. vertical velocity. b. rate of climbing/descending. c. only the climbing speed. d. only the descending speed.

58. Factors that distinguish ICAO landing categories are: A decision height. B. horizontal visibility in decision point. C.horizontal visibility on runway. D. number of runways at the airport.

59. NDB transmits radio signal. A. the same in all directions. B. that is dependent on transmission direction. C. on frequency of about hundreds of kHz. D. on frequency of about hundreds of MHz.

60. VOR transmits radio signal. A the same in all directions. B. that is dependent on transmission direction. C. on frequency lower than 500 kHz. D. on frequency higher than 100 MHz.

61. Ionosphere Influence on radiowave depends on: A. wave phase. B. 2 wave frequency. C. wavelength. D. method of modulation.

62. Magnetic inclination is. A.the angle made by a compass needle with the local horizontal plane. B. called magnetic dip. C. the angle between the direction of the north end of a compass points and true north. D. the angle between the direction of the north end of a compass points and magnelic north.

63. The shortest path between two points on the earth is: A loxodrome. B orthodrome. C. isoline of equal bearing. D. isoline of equal distance.

64. Line of position is: A .the set of geometric points where navigation parameter is constant. B. the set of geometric points where navigation parameter increases. C. flight path. D. assumed position where object will be in nearest future.

65. Altitude measured from mean sea level is named: A. relative altitude. B. absolute altitude. C. a true altitude. D. pressure altitude.

66. Radiowave modulation methods. A.amplitude. B.frequency. C. radial V. D. phase.

67.GNSS augmentation system called EGNOS: A.Generates the network of ionospheric corrections. B.Transmits the corrections via ground based transmitters directly to users. C.Transmits the corrections on L1 (~1.5 GHz) frequency. D.In its close proximity, interferes with the GNSS signal.

68.The error of GPS systems results from: A.Ionospheric refraction. B.Tropospheric refraction. C.Relativistic phenomenon. D.Efemerides inaccuracies.

69.The range of typical ILS is about. A.5 NM (nautical miles). B.25 NM. C.75 NM. D.150 NM.

70. The glide slope angle of the ILS approximately. A. 3 degrees. B. 10 degrees. C. 15 degrees. D. 20 degrees.

71. TCAS II in an emergency situation provides. A. resolution advisory to avoid crash with other aircraft. B. resolution advisory to avoid flying into wind shear area. C. resolution advisory to avoid crash with ground obstacle. D. resolution advisory to avoid crash into terrain.

72. The largest contribution to the GPS position error comes from: A. ionospheric refraction. B. ephemerides errors. C. relativistic effects. D. tropospheric refraction.

73. GPWS aims to avoid. A. descent below ILS glide slope. B. loss of communication with flight controller. C. controlled flight into terrain. D. mid-air collision.

74. Mark true all about NED (north east downwards) coordinate system. A. X-Y plane is parallel to the local horizon plane. B. Z axis parallel to gravity vector. C. originates in the center of the Earth. D. X-Y plane is parallel to equatorial plane.

75. DME system. A. provides bearing and distance to the ground radio beacon. B. can serve limited number of users (aircraft). C. provides only bearing to the ground radio beacon. D.provides only distance to the ground radio beacon.

76. The ADS (air data system) uses the sensors of. A. angle of attack. B. dynamic pressure. C. total pressure. D. static pressure.

77. GPS wide area augmentation systems (like EGNOS). A. are always supported by pseudolites. B. generate the network of ionospheric corrections. C. transmit the corrections on GPSL1 frequency via satellite link. D. transmit the corrections on GPSL1 frequency via ground-based radio modems.

78. What type of modulation is shown in the image: A. digital modulation. B. frequency modulation. C. phase modulation. D. amplitude modulation.

79. Which system(s) belong(s) to the GNSS family: A. GALILEO. B. GPWS. C. Beidou. D. GPS.

80. Which speed is the most important from stall and overspeed perspective. A. Indicated Air Speed. B. True Air Speed. C. Calibrated Air Speed. D. Ground Speed.

81. Orthodrome. A. is the shortest path on Earth surface between two points. B. crosses meridians at the same angle. C. is a part of a circle that has center point in the center of Earth. D. for given points A and B is longer than loxodrome between these points.

82. Differential GPS calculates the corrections directly for. A. satellite clocks. B. receiver position. C. receiver distance (range) to each visible satellite. D. ephemerides of each visible satellite.

83. VOR system. A. requires directional antenna onboard aircraft. B. operates at a frequency slightly higher than 100 MHz. C. operates at a frequency slightly higher than 100 kHz. D. provides bearing to the radio beacon.

84. In positional navigation systems, the value of DOP (Dilution of Precision) is affected by. A. the angle between the tangents to the position lines. B. the angle at which the position lines intersect. C. the determination error of the position lines/surfaces. D. the positioning time.