MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
The value of maximum power gain is always greater than or equal to the maximum directive gain. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
The radiation efficiency value is ______ |
| A. | 0 |
| B. | 1< < |
| C. | 0 1 |
| D. | |
| Answer» D. | |
| 3. |
What is the maximum power gain when the radiation resistance is 72 , loss resistance is 8 and the maximum directive gain is 1.5? |
| A. | 1.15 |
| B. | 1.35 |
| C. | 1.25 |
| D. | 1.53 |
| Answer» C. 1.25 | |
| 4. |
Which of the following represents the relation between maximum power gain and maximum directivity gain of the antenna? |
| A. | G<sub>pmax</sub> = <sub>r</sub>G<sub>dmax</sub> |
| B. | G<sub>pmax</sub> = <sub>r</sub>/G<sub>dmax</sub> |
| C. | <sub>r</sub> = ( sqrt{(G_{pmax} G_{dmax})} ) |
| D. | <sub>r</sub> = ( frac{G_{dmax}+G_{pmax}}{G_{dmax}-G_{pmax}} ) |
| Answer» B. G<sub>pmax</sub> = <sub>r</sub>/G<sub>dmax</sub> | |
| 5. |
Which of the following expression is correct for radiation efficiency? |
| A. | ( eta_r = frac{P_r}{P_l} ) |
| B. | ( eta_r = frac{P_r}{P_r-P_l} ) |
| C. | ( eta_r = frac{P_r}{P_r+P_l} ) |
| D. | ( eta_r = frac{P_l}{P_r+P_l} ) |
| Answer» D. ( eta_r = frac{P_l}{P_r+P_l} ) | |
| 6. |
What is the maximum power gain of antenna with radiation efficiency 98% and directive gain 1? |
| A. | 0.98 |
| B. | 1.02 |
| C. | 1.98 |
| D. | 1 |
| Answer» B. 1.02 | |
| 7. |
The ratio of power radiated in a particular direction to the total input power of antenna is called as _____ |
| A. | Directive gain |
| B. | Power gain |
| C. | Directivity |
| D. | Partial directivity |
| Answer» C. Directivity | |