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Questions for ADF

Answer the following questions

1. Which statement about the errors and effects on NDB radio signal is correct?
2. What is the wavelength of an NDB transmitting on 375 kHz?
3. The quadrantal error of an ADF?
4. An NDB transmits a signal pattern in the horizontal plane which is
5. Which statement with respect to the range of an range of an NDB?
6. What causes the so called "night effect"?
7. ADF is the abbreviation for?
8. If a failed RMI rose is stuck on 090 degrees, and the ADF pointer indicates 225 degrees, the relative bearing to the station will be?
9. A VOR and an NDB are co-located. You cross the VOR radial of 240 on a heading of 360 (M). In the vicinity of the station read an ADF bearing of?
10. An aeroplane is tracking towards an NDB maintaining track 120 degrees with 15 degrees starboard (right) drift. The relative bearing indicator (RBI) should indicate a bearing of?
11. What does ADF stand for?
12. Night Effect'which causes loss of signal and fading, resulting in bearing errors from NDB transmissions, is due to
13. An aeroplane is tracking away from an NDB maintaining track 020 degrees with 5 degrees starboard (right) drift. The relative bearing indicate (RBI) should indicate a bearing of?
14. What actually happens in the ADF receiver when the BPO position is selected?
15. Errors caused by the effect of coastal refraction on bearings at lower altitudes are maximum when the NDB is
16. What is the wavelenght of an NDB transmitting on 375 KHz?
17. Which of the following is likely to have the greatest effect on ADF accuracy?
18. Which of the following is likely to have the greatest effect on ADF accuracy?
19. ADF bearing by an aeroplane by day within the published protection range should be accurate to within a maximum error of
20. The BFO selector on an ADF receiver is used to
21. Night effect in an ADF may cause?
22. With regard to the range of NDBs and the accuracy of the bearing they provide it can be stated that in general at night?
23. NDB is the abbreviation for?
24. Which one of the following disturbances is most likely to cause the greatest inaccuracy in ADF bearings?
25. Factors liable to affect most NDB/ADF system performance and reliability include
26. The reading of the RMI bearing is 300 degrees. At the tip of the needle. The magnetic variation at the DR position is 24W, The magnetic variation at the NDB is 22W and deviation is -2 degrees. The compass heading is 020 degrees. The true bearing is?
27. If a failed RMI rose is stuck on 090 and the ADF pointer indicates 225, the relative bearing of the station will be?
28. A VOR and an NDB are co-located. An aircraft equipped with an RMI is flying away from the beacons on a radial of 090 degrees through an area where magnetic variation is changing rapidly. Which statement is correct?
29. 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?
30. On the QDR of 075 degrees, (in the vicinity of the station) with magnetic heading of 295 degrees, the relative bearing on the ADF indicator is?
31. An aeroplane is tracking away from an NDB maintaining track 120 degrees with 15 degrees starboard (right) drift. The relative bearing indicator (RBI) should indicate a bearing of?
32. Concerning ADF and NDB?
33. What is the wavelenght of an NDB transmitting on 365 kHz?
34. In order to obtain an ADF bearing the
35. Which statement is correct for tracking towards an NDB in an area with constant wind and constant magnetic variation?
36. Quadrantal errors associated with aircraft Automatic Direction Finding (ADF) equipment are caused by
37. Which of the following is the ICAO allocated frequency band for ADF receivers?
38. The ADF indication in the cockpit is a?
39. An NDB is on a relative bearing of 316 degrees from the aircraft. Given: compass heading 265 degrees. At aircraft deviation = 3W, variation = 36E. At station variation = 34E. Calculate the bearing of the NDB from the aircraft?
40. Which statement with respect to the range of an NDB in an area with constant wind and constant magnetic variation?
41. Given: W/V (T) = 230/20 kts. Variation = 6E. TAS = 80 kts. What relative bearing from an NDB should be maintained in order to achieve an outbound course of 257 (M) from overhead the beacon?
42. You are on a magnetic heading of 055 degrees, and your ADF indicates a relative bearing of 325 degrees. The QDM is?
43. 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?
44. 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?
45. An NDB is on a relative bearing of 316 degrees from an aircraft. Given: compass heading 270. Deviation= 2W/ Variation at the station=28E. calculate the true bearing of the NDB from the aircraft?
46. Allocated frequencies for NDB are?