MCQOPTIONS
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MCQOPTIONS
This section includes 12 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. |
In which of the following feed there is no impedance mismatch? |
| A. | Offset feed |
| B. | Cassegrain feed |
| C. | Front feed |
| D. | Gregorian feed |
| Answer» B. Cassegrain feed | |
| 2. |
Large f/D ratio is used for deep-dish reflectors. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which of the following is formed by moving parabolic counter parallel to itself? |
| A. | Parabolic cylinder |
| B. | Pill box |
| C. | Cheese antenna |
| D. | Truncated antenna |
| Answer» B. Pill box | |
| 4. |
Which of the following antenna is a combination of pillbox and parabolic cylinder? |
| A. | Cheese antenna |
| B. | Orange peel antenna |
| C. | Corner antenna |
| D. | Cassegrain |
| Answer» B. Orange peel antenna | |
| 5. |
Cassegrain antennas cannot be used in radio telescopes. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
In which of the following secondary reflector is convex? |
| A. | Gregorian |
| B. | Cassegrain |
| C. | Parabolic |
| D. | Corner |
| Answer» C. Parabolic | |
| 7. |
In which of the following secondary reflector is concave? |
| A. | Gregorian |
| B. | Cassegrain |
| C. | Parabolic |
| D. | Corner |
| Answer» B. Cassegrain | |
| 8. |
Which of the following reflector antenna doesn’t require a directive feed? |
| A. | Parabolic |
| B. | Hyperbolic |
| C. | Corner |
| D. | Truncated |
| Answer» D. Truncated | |
| 9. |
Which type of feed in parabolic antenna blocks the beam limiting aperture efficiency to 55%? |
| A. | Axial feed |
| B. | Offset feed |
| C. | Cassegrain |
| D. | Gregorian |
| Answer» B. Offset feed | |
| 10. |
Which of the following statements is false about Array-fed antenna? |
| A. | It is widely used to create a downlink radiation in satellite communication |
| B. | An array of feed horns are clustered at focal point to produce arbitrary shaped beam |
| C. | It uses only a single horn feed and a multiple array of passive reflectors |
| D. | It can also be used with secondary reflector antennas |
| Answer» D. It can also be used with secondary reflector antennas | |
| 11. |
Which of the following antenna has a shape of letter ‘C’? |
| A. | Orange peel antenna |
| B. | Pill box |
| C. | Yagi-Uda antenna |
| D. | Wire dipole |
| Answer» B. Pill box | |
| 12. |
Which one of the following antennas is mostly used in TV Dish? |
| A. | Parabolic reflector |
| B. | Lens antenna |
| C. | Log periodic |
| D. | Rhombus antenna |
| Answer» B. Lens antenna | |