MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Antennas knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Half-power beam width is also called as 6-db beam width. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
What happens to the beam-width of antenna if the frequency of operation is increased? |
| A. | Beam-width will decrease |
| B. | Beam-width will increase |
| C. | Beam-width is independent of frequency |
| D. | Beam width may increase or decrease |
| Answer» B. Beam-width will increase | |
| 3. |
Find the directivity when the half power beam widths are 45 and 60 in perpendicular planes. |
| A. | 12.58 |
| B. | 17.98 |
| C. | 22.91 |
| D. | 15.28 |
| Answer» E. | |
| 4. |
Beam width is the measure of directivity of antenna in terms of angles either radians or degrees. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
What is the Beam area in radians when the HPBW in perpendicular planes are given by 60 , 30 ? |
| A. | ( frac{ pi^2}{8} ) |
| B. | ( frac{ pi}{2} ) |
| C. | ( frac{ pi^2}{18} ) |
| D. | 2 |
| Answer» D. 2 | |
| 6. |
Beam area and directivity are related as _____ |
| A. | (D= frac{2 pi}{B} ) |
| B. | (D= frac{4 pi}{B} ) |
| C. | (D= frac{B}{2 pi} ) |
| D. | (D= frac{B}{4 pi} ) |
| Answer» C. (D= frac{B}{2 pi} ) | |