MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Avionics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which technique uses spot beam antennas to divide the area covered by the satellite into smaller segments? |
| A. | Spatial isolation |
| B. | Frequency reuse |
| C. | Multiplexing |
| D. | Modulation |
| Answer» B. Frequency reuse | |
| 2. |
Which technique uses two different antennas to reduce traffic on the same frequency? |
| A. | Spatial isolation |
| B. | Frequency reuse |
| C. | Multiplexing |
| D. | Modulation |
| Answer» C. Multiplexing | |
| 3. |
Why are techniques like frequency reuse and spatial isolation carried out? |
| A. | Reduce traffic load |
| B. | More gain |
| C. | High speed |
| D. | Error detection |
| Answer» B. More gain | |
| 4. |
WHY_ARE_TECHNIQUES_LIKE_FREQUENCY_REUSE_AND_SPATIAL_ISOLATION_CARRIED_OUT??$ |
| A. | Reduce traffic load |
| B. | More gain |
| C. | High speed |
| D. | Error detection |
| Answer» B. More gain | |
| 5. |
Which technique uses spot beam antennas to divide the area covered by the satellite into smaller segments?$ |
| A. | Spatial isolation |
| B. | Frequency reuse |
| C. | Multiplexing |
| D. | Modulation |
| Answer» B. Frequency reuse | |
| 6. |
Which technique uses two different antennas to reduce traffic on the same frequency?$ |
| A. | Spatial isolation |
| B. | Frequency reuse |
| C. | Multiplexing |
| D. | Modulation |
| Answer» C. Multiplexing | |
| 7. |
Spatial-division multiple access (SDMA) depends on satellite location and not frequency. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
What is the maximum theoretical data rate if a transponder is used for binary transmission and has a bandwidth of 36MHz? |
| A. | 32Mpbs |
| B. | 72Mpbs |
| C. | 36Mpbs |
| D. | 12Mpbs |
| Answer» C. 36Mpbs | |
| 9. |
Which of the following bands cannot be used for satellite communication? |
| A. | MF |
| B. | Ku |
| C. | X |
| D. | C |
| Answer» B. Ku | |
| 10. |
What is the reason for shifting from c band to ku band in satellite communication? |
| A. | Lesser attenuation |
| B. | Less power requirements |
| C. | More bandwidth |
| D. | Overcrowding |
| Answer» E. | |
| 11. |
Why are VHF, UHF, and microwave signals used in satellite communication? |
| A. | More bandwidth |
| B. | More spectrum space |
| C. | Are not diffracted by the ionosphere |
| D. | Economically viable |
| Answer» D. Economically viable | |
| 12. |
What is the reason for carrying multiple transponders in a satellite? |
| A. | More number of operating channel |
| B. | Better reception |
| C. | More gain |
| D. | Redundancy |
| Answer» B. Better reception | |
| 13. |
The downlink frequency is lower than the uplink frequency. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
The transmitter-receiver combination in the satellite is known as a _______ |
| A. | Relay |
| B. | Repeater |
| C. | Transponder |
| D. | Duplexer |
| Answer» D. Duplexer | |
| 15. |
The satellite that is used as a relay to extend communication distance is called as __________ |
| A. | Relay satellites |
| B. | Communication satellites |
| C. | Repeater satellites |
| D. | Geosynchronous satellites |
| Answer» C. Repeater satellites | |