MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Reflector Antenna knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the corner angle of a flat reflector antenna? |
| A. | 90° |
| B. | 180° |
| C. | 60° |
| D. | 45° |
| Answer» C. 60° | |
| 2. |
Corner angle of a square corner reflector antenna is _____ |
| A. | 90° |
| B. | 180° |
| C. | 60° |
| D. | 45° |
| Answer» B. 180° | |
| 3. |
The number of images, polarity and position in the analysis of the radiation field of corner reflector depends on what? |
| A. | Only included angle |
| B. | Polarization of feed element |
| C. | Both included angle & Polarization of feed element |
| D. | Neither included angle nor Polarization of feed element |
| Answer» D. Neither included angle nor Polarization of feed element | |
| 4. |
Which of the following statements is false for a corner reflector antenna? |
| A. | Increases directivity in the forward direction |
| B. | Back radiation is not reduced compare to the plane reflector |
| C. | System efficiency depends on spacing between reflector vertex and the feed |
| D. | Angle between the reflecting plates is called included angle |
| Answer» C. System efficiency depends on spacing between reflector vertex and the feed | |
| 5. |
In a corner reflector antenna, if the spacing between vertex of reflector and feed is 2m then side length of reflector sheet is _____cm. |
| A. | 4 |
| B. | 2 |
| C. | 400 |
| D. | 200 |
| Answer» D. 200 | |
| 6. |
Find the aperture dimension of the corner reflector having reflector sheet side length 1m? |
| A. | 1.414 |
| B. | 2.828 |
| C. | 2 |
| D. | 1 |
| Answer» B. 2.828 | |
| 7. |
Corner angle of a corner reflector with 4 current elements is ______ |
| A. | \(\frac{π}{4}\) |
| B. | \(\frac{π}{2}\) |
| C. | \(\frac{π}{8}\) |
| D. | 4π |
| Answer» B. \(\frac{π}{2}\) | |
| 8. |
In order to achieve good system efficiency in a corner reflector, the spacing between the vertex and the feed must be ______ as included angle decreases. |
| A. | Increased |
| B. | Decreased |
| C. | Constant |
| D. | Either increases or decreases |
| Answer» B. Decreased | |
| 9. |
In a corner reflector, included angle α refers to _______ |
| A. | angle at which two plane reflectors are joined |
| B. | angle between vertex and the feed radiator |
| C. | angle between major axis to the main beam |
| D. | angle between vertex and the main beam axis |
| Answer» B. angle between vertex and the feed radiator | |
| 10. |
Corner reflector is designed for radiation in forward direction unlike in plane reflector. |
| A. | True |
| B. | False |
| Answer» B. False | |