MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Antennas knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is used for communication in rugged terrain where normal propagation methods fail? |
| A. | Tropospheric Scattering |
| B. | Ground wave |
| C. | LOS |
| D. | Radio Horizon |
| Answer» B. Ground wave | |
| 2. |
In tropospheric scattering, rapid fading occurs due to _______ and long-term fading occurs due to ______ |
| A. | multipath propagation, turbulences in atmosphere |
| B. | low signal strength, signal travelling below horizon |
| C. | signal travelling below horizon, low signal strength |
| D. | daily and seasonal variations, multi-path propagation |
| Answer» B. low signal strength, signal travelling below horizon | |
| 3. |
Which of the following statements regarding tropospheric scattering is false? |
| A. | It occurs in the region near to the mid-point of the transmitter and receiver |
| B. | It occurs above the radio horizon |
| C. | It travels beyond the line of sight distance |
| D. | It occurs below the radio horizon |
| Answer» E. | |
| 4. |
When the signal take-off angle increases, the height of scatter volume ________ |
| A. | increases |
| B. | decreases |
| C. | it remains constant |
| D. | may increase or decrease |
| Answer» B. decreases | |
| 5. |
The turbulences in the atmosphere lead to ___________ |
| A. | tropospheric scattering |
| B. | ground wave propagation |
| C. | sky wave propagation |
| D. | constant velocity of signal |
| Answer» B. ground wave propagation | |
| 6. |
Tropospheric scattering, if falls under low frequencies then it leads to Ionosphere scattering. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
The tropospheric scattering occurs at _________ |
| A. | Beyond the LOS |
| B. | In ground wave propagation |
| C. | In sky wave propagation |
| D. | Below the radio horizon |
| Answer» B. In ground wave propagation | |
| 8. |
Tropospheric propagation is also known as forward scatter propagation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
What is the range of frequency at which tropospheric scatter occurs? |
| A. | UHF and Microwave range |
| B. | HF |
| C. | MF and VHF |
| D. | MF and HF |
| Answer» B. HF | |
| 10. |
What is the frequency at which tropospheric scatter occurs? |
| A. | Above 30MHz |
| B. | Below 30 MHz |
| C. | < 3MHz |
| D. | > 3 MHz and < 30MHz |
| Answer» B. Below 30 MHz | |