Discussion
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- Question
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
- Correct Answer
- ARABSAT
- 1. India's first three-axis stabilised geostationary communication satellite is
Options- A. Rohini
- B. Aryabhatta
- C. Apple
- D. Bhaskara Discuss
- 2. 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
- 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
- 4. 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
- 5. In a radio receiver, the local oscillator is always tuned to a frequency higher than the incoming frequency to
Options- A. facilitate tracking
- B. allow permit adequate frequency coverage without switching
- C. facilitate image frequency rejection
- D. all of the above Discuss
- 6. 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
- 7. 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
- 8. 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
- 9. System satellites orbit the Earth once in
Options- A. 24 hours
- B. 12 hours
- C. 1 hours
- D. 6 hours Discuss
- 10. The maximum signal propagation time of a geosynchronous satellite transmission is about __________ millisecond.
Options- A. 540
- B. 270
- C. 135
- D. 1080 Discuss
Satellite Communication problems
Search Results
Correct Answer: Apple
Correct Answer: 5
Correct Answer: Only one side band and part of carrier is suppressed
Correct Answer: heat up and melt
Correct Answer: allow permit adequate frequency coverage without switching
Correct Answer: all of the above
Correct Answer: 3
Correct Answer: an electronic circuit which carries out modulation and demodulation of a carrier frequency
Correct Answer: 24 hours
Correct Answer: 270
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