MCQOPTIONS
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MCQOPTIONS
This section includes 23 Mcqs, each offering curated multiple-choice questions to sharpen your Wireless Mobile Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The frequency of Ku band for satellite communications is __________ |
| A. | 6/4 GHz |
| B. | 14/11 GHz |
| C. | 12/14 GHz |
| D. | 4/8 GHz |
| Answer» C. 12/14 GHz | |
| 2. |
INTELSAT stands for ___________ |
| A. | Intel Satellite |
| B. | International Telephone Satellite |
| C. | International Telecommunications Satellite |
| D. | International Satellite |
| Answer» D. International Satellite | |
| 3. |
A satellite battery has more power but lighter _________ |
| A. | Lithium |
| B. | Leclanche |
| C. | Hydrogen |
| D. | Magnesium |
| Answer» B. Leclanche | |
| 4. |
What kind of battery panels are used in some advanced satellites? |
| A. | Germanium based panels |
| B. | Silicon based panel |
| C. | Gallium Phosphate solar panel array |
| D. | Gallium Arsenide solar panel array |
| Answer» E. | |
| 5. |
__________ is a loss of power of a satellite downlink signal due to earth’s atmosphere. |
| A. | Atmospheric loss |
| B. | Path loss |
| C. | Radiation loss |
| D. | RFI |
| Answer» C. Radiation loss | |
| 6. |
A satellite signal transmitted from a satellite transponder to earth’s station is _________ |
| A. | Uplink |
| B. | Downlink |
| C. | Terrestrial |
| D. | Earthbound |
| Answer» C. Terrestrial | |
| 7. |
The smallest beam of a satellite antenna radiation pattern is ________ |
| A. | Zone beam |
| B. | Hemispheric beam |
| C. | Spot beam |
| D. | Global beam |
| Answer» D. Global beam | |
| 8. |
___________ is the geographical representation of a satellite antenna radiation pattern. |
| A. | Footprint |
| B. | Spot |
| C. | Earth |
| D. | Region |
| Answer» B. Spot | |
| 9. |
Repeaters inside communications satellites are known as ___________ |
| A. | Transceivers |
| B. | Transponders |
| C. | Transducers |
| D. | TWT |
| Answer» C. Transducers | |
| 10. |
A helical antenna is used for satellite tracking because of _________ |
| A. | Circular polarization |
| B. | Maneuverability |
| C. | Beamwidth |
| D. | Gain |
| Answer» B. Maneuverability | |
| 11. |
A_SATELLITE_BATTERY_HAS_MORE_POWER_BUT_LIGHTER_________?$ |
| A. | Lithium |
| B. | Leclanche |
| C. | Hydrogen |
| D. | Magnesium |
| Answer» B. Leclanche | |
| 12. |
The frequency of Ku band for satellite communications is ______$ |
| A. | 6/4 GHz |
| B. | 14/11 GHz |
| C. | 12/14 GHz |
| D. | 4/8 GHz |
| Answer» C. 12/14 GHz | |
| 13. |
INTELSAT stands for ________$ |
| A. | Intel Satellite |
| B. | International Telephone Satellite |
| C. | International Telecommunications Satellite |
| D. | International Satellite |
| Answer» D. International Satellite | |
| 14. |
The most common device used as an LNA is ________ |
| A. | Zener diode |
| B. | Tunnel diode |
| C. | IMPATT |
| D. | Shockley diode |
| Answer» C. IMPATT | |
| 15. |
What kind of battery panels are used in some advance satellites? |
| A. | Germanium based panels |
| B. | Silicon based panel |
| C. | Gallium Phosphate solar panel array |
| D. | Gallium Arsenide solar panel array |
| Answer» E. | |
| 16. |
Which of the following is the point on the satellite orbits closest to the Earth? |
| A. | Apogee |
| B. | Perigee |
| C. | Prograde |
| D. | Zenith |
| Answer» C. Prograde | |
| 17. |
__________ is a loss of power of a satellite downlink signal due to earth’s atmosphere.$ |
| A. | Atmospheric loss |
| B. | Path loss |
| C. | Radiation loss |
| D. | RFI |
| Answer» C. Radiation loss | |
| 18. |
A satellite signal transmitted from a satellite transponder to earth’s station is _________$ |
| A. | Uplink |
| B. | Downlink |
| C. | Terrestrial |
| D. | Earthbound |
| Answer» C. Terrestrial | |
| 19. |
_________ detects the satellite signal relayed from the feed and converts it to an electric current, amplifies and lowers its frequency. |
| A. | Horn antenna |
| B. | LNA |
| C. | Satellite receiver |
| D. | Satellite dish |
| Answer» C. Satellite receiver | |
| 20. |
The smallest beam of a satellite antenna radiation pattern is _______ |
| A. | Zone beam |
| B. | Hemispheric beam |
| C. | Spot beam |
| D. | Global beam |
| Answer» D. Global beam | |
| 21. |
_______ is the geographical representation of a satellite antenna radiation pattern. |
| A. | Footprint |
| B. | Spot |
| C. | Earth |
| D. | Region |
| Answer» B. Spot | |
| 22. |
Repeaters inside communications satellites are known as _______ |
| A. | Transceivers |
| B. | Transponders |
| C. | Transducers |
| D. | TWT |
| Answer» C. Transducers | |
| 23. |
A helical antenna is used for satellite tracking because of _____ |
| A. | Circular polarization |
| B. | Maneuverability |
| C. | Beamwidth |
| D. | Gain |
| Answer» B. Maneuverability | |