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MCQs

Total Questions : 98 | Page 8 of 10 pages
Question 71. A satellite cross-link means
  1.    Satellite-to-earth link
  2.    Satellite-to-satellite link
  3.    None of these
  4.    Earth-to-satellite link
 Discuss Question
Answer: Option B. -> Satellite-to-satellite link
Question 72. A method of multiple accessing where a given RF channel bandwidth is divided inot smaller frequency band.
  1.    ANIK-D
  2.    FDMA
  3.    TDMA
  4.    CDMA
 Discuss Question
Answer: Option B. -> FDMA
Question 73. _________ detects the satellite signal relayed from the feed and converts it to an electric current, amplifies and lower its frequency.
  1.    Horn antenna
  2.    Satellite receiver
  3.    Satellite dish
  4.    LNA
 Discuss Question
Answer: Option D. -> LNA
Question 74. Point on the satellite obits closest to the earth.
  1.    Zenith
  2.    Perigee
  3.    Prograde
  4.    Apogee
 Discuss Question
Answer: Option B. -> Perigee
Question 75. Is the geographical representation of a satellite antenna radiation pattern
  1.    Footprint
  2.    Spot
  3.    Earth
  4.    Region
 Discuss Question
Answer: Option A. -> Footprint
Question 76. The smallest beam of a satellite antenna radiation pattern
  1.    Zone beam
  2.    Spot beam
  3.    Global beam
  4.    Hemispheric beam
 Discuss Question
Answer: Option B. -> Spot beam
Question 77. What is the frequency range of C-band?
  1.    27.5 to 31 GHz
  2.    12.95 to 14.95 GHz
  3.    8.5 to 12.5 GHz
  4.    3.4 to 6.425 GHz
 Discuss Question
Answer: Option D. -> 3.4 to 6.425 GHz
Question 78. What is a device that detects both vertically and horizontally polarized signals simultaneously?
  1.    Optoisolator
  2.    Orthomode transducer
  3.    Isomode detector
  4.    Crystal detector
 Discuss Question
Answer: Option B. -> Orthomode transducer
Question 79. The first satellite to receive and transmit simultaneously
  1.    Agila I
  2.    Telstar I
  3.    Syncorn I
  4.    Intelsat I
 Discuss Question
Answer: Option B. -> Telstar I
Question 80. In a typical mobile satellite array antenna if three elements are activated, how many elements are deactivated?
  1.    5
  2.    11
  3.    3
  4.    9
 Discuss Question
Answer: Option B. -> 11

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