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MCQs

Total Questions : 98 | Page 7 of 10 pages
Question 61. Repeaters inside communications satellites are known as
  1.    Transducers
  2.    TWT
  3.    Trancievers
  4.    Transponders
 Discuss Question
Answer: Option D. -> Transponders
Question 62. A satellite batter has more power but lighter.
  1.    Magnesium
  2.    Leclanche
  3.    Hydrogen
  4.    Lithium
 Discuss Question
Answer: Option D. -> Lithium
Question 63. The radiation patterns of earth coverage antennas have a beamwidth of approximately
  1.    17˚
  2.    35˚
  3.    5˚
  4.    21˚
 Discuss Question
Answer: Option A. -> 17˚
Question 64. The bandwidth of C-band satellite frequency band in U.S.
  1.    500 MHz
  2.    500 GHz
  3.    1000 GHz
  4.    1000 MHz
 Discuss Question
Answer: Option A. -> 500 MHz
Question 65. What is the local oscillator (mixer) frequency of the satellite with an uplink frequency in GHz band?
  1.    4500 MHz
  2.    2555 MHz
  3.    3500 MHz
  4.    2225 MHz
 Discuss Question
Answer: Option D. -> 2225 MHz
Question 66. The switching from one element to the other element in a typical mobile satellite array.
  1.    Matrix
  2.    Series
  3.    Radial
  4.    Shunt
 Discuss Question
Answer: Option D. -> Shunt
Question 67. What circuit is responsible in activating and deactivating adjacent antenna elements in a mobile satellite array?
  1.    Radial multiplexer
  2.    Divider/combiner
  3.    Radial divider
  4.    Radial combiner
 Discuss Question
Answer: Option C. -> Radial divider
Question 68. INTELSAT stands for
  1.    Intel Satellite
  2.    International Satellite
  3.    International Telephone Satellite
  4.    International Telecommunications Satellite
 Discuss Question
Answer: Option D. -> International Telecommunications Satellite
Question 69. How may satellite orbital slots are requested by the Philippine Government from ITU?
  1.    4
  2.    8
  3.    6
  4.    2
 Discuss Question
Answer: Option C. -> 6
Question 70. The frequency of Ku band for satellite communications.
  1.    6/4 GHz
  2.    14/11 GHz
  3.    4/8 GHz
  4.    12/14 GHz
 Discuss Question
Answer: Option B. -> 14/11 GHz

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