3-K-069: VHF Omnidirectional Range (VOR)
3-69K1:
All directions associated with a VOR station are related to:
Magnetic north.
North pole.
North star.
None of these.
3-69K2:
The rate that the transmitted VOR variable signal rotates is equivalent to how many revolutions per second?
30
60
2400
1800
3-69K3:
What is the frequency range of the ground-based Very-high-frequency Omnidirectional Range (VOR) stations used for aircraft navigation?
108.00 MHz to 117.95 MHz.
108.00 kHz to 117.95 kHz.
329.15 MHz to 335.00 MHz.
329.15 kHz to 335.00 kHz.
3-69K4:
Lines drawn from the VOR station in a particular magnetic direction are:
Radials.
Quadrants.
Bearings.
Headings.
3-69K5:
The amplitude modulated variable phase signal and the frequency modulated reference phase signal of a Very-high-frequency Omnidirectional Range (VOR) station used for aircraft navigation are synchronized so that both signals are in phase with each other at ____________ of the VOR station.
360 degrees North, magnetic bearing position.
180 degrees South, true bearing position.
180 degrees South, magnetic bearing position.
0 degrees North, true bearing position.
3-69K6:
What is the main underlying operating principle of the Very-high-frequency Omnidirectional Range (VOR) aircraft navigational system?
A phase difference between two AC voltages may be used to determine an aircraft’s azimuth position in relation to a selected VOR station.
A definite amount of time is required to send and receive a radio signal.
The difference between the peak values of two DC voltages may be used to determine an aircraft’s altitude above a selected VOR station.
A phase difference between two AC voltages may be used to determine an aircraft’s distance from a selected VOR station.
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Color key:
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● = Unseen
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● = Weak
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● = Review
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● = Learned
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● = Incorrect answer
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