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MCQs

Total Questions : 98 | Page 1 of 10 pages
Question 1. Collects very weak signals from a broadcast satellite
  1.    Helical antenna
  2.    Satellite dish
  3.    LNA
  4.    TWT
 Discuss Question
Answer: Option B. -> Satellite dish
Question 2. Is a loss of power of a satellite downlink signal due to earth’s atmosphere.
  1.    Atmospheric loss
  2.    Path loss
  3.    Radiation loss
  4.    RFI
 Discuss Question
Answer: Option B. -> Path loss
Question 3. As the height of a satellite orbit gets lower, the speed of the satellite ___________.
  1.    Increases
  2.    Decreases
  3.    Remains the same
  4.    None of the above
 Discuss Question
Answer: Option A. -> Increases
Question 4. Considered as the unsolved problem in satellite system
  1.    Coverage
  2.    Cost
  3.    Access
  4.    Privacy
 Discuss Question
Answer: Option D. -> Privacy
Question 5. A satellite beam that covers almost 42.4% of the earths surface.
  1.    Zone beam
  2.    Hemispheric beam
  3.    Spot beam
  4.    Global beam
 Discuss Question
Answer: Option D. -> Global beam
Question 6. Most mobile satellite array uses ___________ in transforming 50 to 150 Ω impedance.
  1.    Stub
  2.    Balun
  3.    Quarter-wavelength transformer
  4.    Microstrip tapers
 Discuss Question
Answer: Option C. -> Quarter-wavelength transformer
Question 7. A satellite signal transmitted from a satellite transponder to earth’s station.
  1.    Uplink
  2.    Downlink
  3.    Terrestrial
  4.    Earthbound
 Discuss Question
Answer: Option B. -> Downlink
Question 8. A helical antenna is used for satellite tracking because of
  1.    Circular polarization
  2.    Maneuverability
  3.    Beamwidth
  4.    Gain
 Discuss Question
Answer: Option A. -> Circular polarization
Question 9. What band does VSAT first operate?
  1.    L-band
  2.    X-band
  3.    C-band
  4.    Ku-band
 Discuss Question
Answer: Option C. -> C-band
Question 10. VSAT was made available in
  1.    1979
  2.    1981
  3.    1983
  4.    1977
 Discuss Question
Answer: Option A. -> 1979

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