MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Microwave Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A typical radiometer would measure the brightness temperature over the range of about: |
| A. | 50-300 K |
| B. | 100-200 K |
| C. | 400-500 K |
| D. | None of the mentioned |
| Answer» B. 100-200 K | |
| 2. |
A Dicke radiometer is identical to the total power radiometer in all aspects except that they have different receiving antenna. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The dominant factor affecting the accuracy of the total power radiometer is the variation of ___________ |
| A. | Gain in the overall system |
| B. | The feedback circuit |
| C. | Efficiency of the system |
| D. | None of the mentioned |
| Answer» B. The feedback circuit | |
| 4. |
According to Planck’s radiation law, a body can radiate energy to the medium surrounding it under all conditions invariably. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
A_DICKE_RADIOMETER_IS_IDENTICAL_TO_THE_TOTAL_POWER_RADIOMETER_IN_ALL_ASPECTS_EXCEPT_THAT_THEY_HAVE_DIFFERENT_RECEIVING_ANTENNA.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
A_typical_radiometer_would_measure_the_brightness_temperature_over_the_range_of_about:$ |
| A. | 50-300 K |
| B. | 100-200 K |
| C. | 400-500 K |
| D. | None of the mentioned |
| Answer» B. 100-200 K | |
| 7. |
The dominant factor affecting the accuracy of the total power radiometer is the variation of __________? |
| A. | Gain in the overall system |
| B. | The feedback circuit |
| C. | Efficiency of the system |
| D. | None of the mentioned |
| Answer» B. The feedback circuit | |
| 8. |
The integrator circuit after the detector in the receiver circuit is used to smooth out the short term variations in the signal power. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
The system bandwidth of a total power radiometer is determined by the: |
| A. | RF amplifier |
| B. | Local oscillator |
| C. | IF filter |
| D. | IF amplifier |
| Answer» D. IF amplifier | |
| 10. |
The receiver model of a total power radiometer is based on the: |
| A. | AM receiver |
| B. | FM receiver |
| C. | Super heterodyne receiver |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 11. |
A major challenge in designing a radiometer is: |
| A. | Design complexity |
| B. | High cost |
| C. | Requirement of highly sensitive receivers |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 12. |
According to Planck’s radiation law, a body can radiate energy to the medium surrounding it under all conditions invariably.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
Radiometry is a technique or the principle on which radar works. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
__________ system obtains information about a target by transmitting a signal and receiving the echo from the target. |
| A. | Radar |
| B. | Sonar |
| C. | Radiometer |
| D. | None of the mentioned |
| Answer» B. Sonar | |