#1. Which of the following would not trigger the warning flag on VOR indicators?
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#4. What is the minimum level that an aircraft, at a range of 113NM, must fly in order to contact the tower on R/T for a VDF bearing from an airport sited 169ft above MSL?
#5. What is the approximate maximum theoretical range at which an aircraft at FL130 could receive information from a VDF facility which is sited 1024ft above MSL?
#6. The maximum theoretical range at which an aircraft at FL80 can obtain bearings from a ground VDF facility sited at 325ft above MSL is:
#7. A VOR receiver check can be made
#8. DVOR works on the principle of
#9. If an aircraft flies along a VOR radial it will follow a:
#10. 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?
#11. The two signals transmitted by a conventional VOR ground station are 90° out of phase on magnetic:
#12. The frequency range of a VOR receiver is:
#13. VOR station position N61°E025°, variation 13°E; Estimated position of an aircraft N59°E025°, variation 20°E. What VOR radial is the aircraft on?
#14. Which of the following statements concerning the variable, or directional, signal of a conventional VOR is correct?
#15. In which frequency band do VOR transmitters operate?
#16. If the reference phase differs 30° with the variable phase the radial from the VOR station will be:
#17. In order to plot a bearing from a VOR station, a pilot needs to know the magnetic variation:
#18. A VOR is sited at position A(45°00’N, 010°00’E). An aircraft is located at position B(44°00’N, 010°00’E). Assuming that the magnetic variation at A is 10°W and at B is 15°W, the aircraft is on VOR radial:
#19. An aircraft flying on the true track 090° towards a VOR station located near the equator where the magnetic variation is 15°E. The variation at the aircraft position is 8°E. The aircraft is on VOR radial:
#20. The principle used in VOR bearing measurement is:
#21. Transmissions from VOR facilities may be adversely affected by:
#22. If VOR bearing information is used beyond the published protection range, errors could be caused by:
#23. An airway 10NM wide is to be defined by two VORs each having a resultant bearing accuracy of plus or minus 5.5°. In order to ensure accurate track guidance within the airway limits the maximum distance apart for the transmitter is approximately:
#24. The VOR system is limited to about 1° of accuracy. One degree at 200NM represents a width of:
#25. An aircraft is required to approach a VOR via the 104° radial. Which of the following settings should be made on the VOR/ILS deviation indicator?
#26. An aircraft on a heading of 280°(M) is on a bearing of 090°(M) from a VOR. The bearing you should select on the OMNI bearing selector to centralise the VOR/ILS left/right deviation needle with a “TO” indication is:
#27. An aircraft is required to approach a VOR station via the 244° radial. In order to obtain correct sense indications the deviation indicator should be set to:
#28. An aircraft is 100NM from a VOR facility. Assuming no error when using a deviation indicator where 1 dot = 2° deviation, how many dots deviation from the center line of the instrument will represent the limits of the airway boundary? (Assume that the airway is 10NM wide.)
#29. The TO/FROM indicator of a VOR:
#30. . An aircraft is tracking inbound to a VOR beacon on the 105 radial. The setting the pilot should put on the OBS and the CDI indications are:
#31. The principle advantage of Doppler VOR is that:
#32. When a maximum range and altitude is published for a VOR?
#33. . An aircraft is over flying a VOR at 30,000 ft, at a groundspeed of 300 kt. The maximum time during which no usable signals will be received (in minutes and seconds) is:
#34. During maintenance, malfunction or testing the identification signal of a VOR transmitter is (i) by (ii) or (iii).
#35. For an aircraft at 30,000 ft what is the maximum radius above a VOR where unreliable or no signals at all may be received at 45° above horizontal:
