Global Orbiting Navigational Satellite System MCQ’s

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This set of Avionics Multiple Choice Questions & Answers (MCQs) focuses on “Global Orbiting Navigational Satellite System”.

1. What type of antenna is used in GLONASS satellites?
a) Helical
b) Beam antenna
c) Parabolic antenna
d) Loop antenna

2. What is the spectral separation between each satellite L1 signal in the GLONASS?
a) 50kHz
b) 2MHz
c) 1240MHz
d) 562.5kHz

3. How are GLONASS satellites differentiated from each other?
a) FDMA
b) CDMA
c) TDM
d) WDM

4. What are the frequency channels that GLONASS use for normal operation?
a) i=-7 to +4
b) i=+5 to +12
c) i=-7 to +12
d) i=-2 to +7

5. L1 and L2 signals are both contain PRN and navigational data.
a) True
b) False

6. What are the frequency channels that GLONASS use as a technical channel?
a) i=-7 and +4
b) i=+5 and +6
c) i=-7 and +12
d) i=-2 and +7

7. Why was the frequency channel used by the GLONASS shifted down after 2005?
a) Political issue
b) Less power requirements
c) Avoid future MSS interference
d) Reduce atmospheric interference

8. How are the ephemeris data broadcast in GLONASS?
a) ECEF coordinates
b) ECI coordinates
c) Directional cosines
d) Geodetic spherical coordinates

9. GLONASS time and GPS time follows leap the second correction.
a) True
b) False

10. GLONASS time is related to which of the following?
a) UTC(USNO)
b) UTC(Moscow)
c) UTC(London)
d) UTC(Beijing)

11. What is the spectral separation between each satellite L2 signal in the GLONASS?
a) 437.5kHz
b) 2MHz
c) 1240MHz
d) 562.5kHz

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