MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Antenna Parameters knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the directivity of antenna having effective aperture 1 m2? |
| A. | ( frac{4 pi}{ lambda^2} ) |
| B. | ( frac{ lambda^2}{4 pi} ) |
| C. | 1 |
| D. | 4 |
| Answer» B. ( frac{ lambda^2}{4 pi} ) | |
| 2. |
What is the directivity of half-wave dipole? |
| A. | 1.64 |
| B. | 1.5 |
| C. | 1.43 |
| D. | 1.44 |
| Answer» B. 1.5 | |
| 3. |
How the directivity and effective aperture related to each other? |
| A. | Inversely proportional |
| B. | Directly proportional |
| C. | Independent |
| D. | Proportionality depends on input power |
| Answer» C. Independent | |
| 4. |
Directive gain with maximum radiation intensity is called as Directivity. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
If half power beam width in one plane and other plane orthogonal to it are equal to then the directivity is ____ |
| A. | |
| B. | 4 |
| C. | 4/ |
| D. | 2 |
| Answer» D. 2 | |
| 6. |
If directivity of antenna increases, then the coverage area _____ |
| A. | decreases |
| B. | increases |
| C. | increases and then decreases |
| D. | remains unchanged |
| Answer» B. increases | |
| 7. |
What is the Beam area for Directivity to be 1 in Steradian? |
| A. | 4 |
| B. | 1/2 |
| C. | 2 |
| D. | 1/4 |
| Answer» B. 1/2 | |
| 8. |
The ratio of maximum power density in the desired direction to the average power radiated from the antenna is called as _______ |
| A. | directivity |
| B. | directive gain |
| C. | power gain |
| D. | partial directivity |
| Answer» B. directive gain | |