MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Avionics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What provides the sufficient drive to the final power amplifier? |
| A. | Intermediate-power amplifier |
| B. | Operational amplifier |
| C. | Power driver circuit |
| D. | Up converter |
| Answer» B. Operational amplifier | |
| 2. |
Which frequency band is used for connecting the satellite system with the public switched telephone network? |
| A. | L band |
| B. | Ku band |
| C. | C band |
| D. | Ka band |
| Answer» E. | |
| 3. |
What is the number of satellites present in the Iridium system? |
| A. | 72 |
| B. | 51 |
| C. | 66 |
| D. | 32 |
| Answer» D. 32 | |
| 4. |
What technique does DSP use to double the number of channels by using helical antennas? |
| A. | Spatial isolation |
| B. | Frequency reuse |
| C. | Multiplexing |
| D. | Modulation |
| Answer» C. Multiplexing | |
| 5. |
Which frequency band does the direct broadcast satellite system use? |
| A. | C band |
| B. | X band |
| C. | Ku band |
| D. | MF band |
| Answer» D. MF band | |
| 6. |
What type of satellite TV service uses compressed data transmission to beam signals directly to every home? |
| A. | Direct broadcast satellite |
| B. | Mobile satellite service |
| C. | Broadcasting satellite service |
| D. | Fixed satellite service |
| Answer» B. Mobile satellite service | |
| 7. |
Which of the following is not a reason for redistributing TV signals through satellites rather than skywaves or spacewaves? |
| A. | High frequency signal |
| B. | Long distance communication |
| C. | Economically feasible |
| D. | Power requirements |
| Answer» E. | |
| 8. |
What is the primary use of communication satellites? |
| A. | Telephone service |
| B. | Surveillance |
| C. | Research |
| D. | GPS |
| Answer» B. Surveillance | |