Satellite Communication problems
- 1. The present total cost per watt of power generation in geosynchronous orbit is nearly Rs.
Options- A. 20
- B. 50
- C. 100
- D. 5 Discuss
Correct Answer: 20
- 2. Low-orbit satellites are not used for communications because they
Options- A. produce sonic booms
- B. do not provide 24 hour/ day contact to the users on Earth
- C. heat up and melt
- D. none Discuss
Correct Answer: heat up and melt
- 3. In synchronous detection of an AM signal
Options- A. Carrier is completely suppressed
- B. Both side hands are suppressed
- C. Only one side band and part of carrier is suppressed
- D. One side band and full carrier is suppressed Discuss
Correct Answer: Only one side band and part of carrier is suppressed
- 4. The communication satellite INSAT-IB had to take up the job of INSAT-IA because the latter collapsed within __________ months of its launch.
Options- A. 12
- B. 20
- C. 5
- D. 36 Discuss
Correct Answer: 5
- 5. India's first three-axis stabilised geostationary communication satellite is
Options- A. Rohini
- B. Aryabhatta
- C. Apple
- D. Bhaskara Discuss
Correct Answer: Apple
- 6. After the death of INSAT-IB, the mainstay of the entire Indian satellite network for some time to come would be
Options- A. INSTELSAT-V
- B. INSAT-ID
- C. INSAT-2
- D. ARABSAT Discuss
Correct Answer: ARABSAT
- 7. The traffic-handling capacity of an Earth station on the uplink depends on
Options- A. its EIRP
- B. satellite antenna gain
- C. noise associated with the satellite
- D. all of the above Discuss
Correct Answer: all of the above
- 8. To cover all inhabited regions of the Earth, the number of geosynchronous communication satellites required
Options- A. 5
- B. 3
- C. 10
- D. 2 Discuss
Correct Answer: 3
- 9. A modem is
Options- A. a form of commutator
- B. a device for digitizing speech
- C. a circuit used for suppressing microwave mterference
- D. an electronic circuit which carries out modulation and demodulation of a carrier frequency Discuss
Correct Answer: an electronic circuit which carries out modulation and demodulation of a carrier frequency
- 10. System satellites orbit the Earth once in
Options- A. 24 hours
- B. 12 hours
- C. 1 hours
- D. 6 hours Discuss
Correct Answer: 24 hours
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