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. |
Which of the following is used as a secondary antenna in the reflector antenna? |
| A. | Horn |
| B. | Feed antenna |
| C. | Parabolic |
| D. | Dipole |
| Answer» D. Dipole | |
| 2. |
When a reflector is placed at the foci along the feed it is called ____ antenna |
| A. | Dual reflector antenna |
| B. | Plane antenna |
| C. | Wire antenna |
| D. | Convex-Convex |
| Answer» B. Plane antenna | |
| 3. |
Which of the following is not a reflector antenna? |
| A. | Convex-convex |
| B. | Corner |
| C. | Gregorian |
| D. | Cassegrain |
| Answer» B. Corner | |
| 4. |
Which of the following is false regarding a reflector antenna? |
| A. | Reflector antennas are high gain antennas with two antennas |
| B. | Both the primary and secondary antennas are excited |
| C. | The pattern of the reflector in the reflector antenna is the Secondary pattern |
| D. | A dual reflector contains two reflectors and one primary feed |
| Answer» C. The pattern of the reflector in the reflector antenna is the Secondary pattern | |
| 5. |
What is the value of magnification of the Cassegrain antenna if its sub-reflector eccentricity is 2? |
| A. | 3 |
| B. | 2 |
| C. | 1/3 |
| D. | 1/2 |
| Answer» B. 2 | |
| 6. |
Which of the following efficiency is used to measure the power-loss at the feed pattern which is intercepted by reflector? |
| A. | Spillover |
| B. | Illumination |
| C. | Taper |
| D. | Aperture |
| Answer» B. Illumination | |
| 7. |
Which of the following combination forms a Cassegrain antenna? |
| A. | The main reflector is parabolic and sub-reflector is hyperbolic |
| B. | The main reflector is parabolic and sub-reflector is concave |
| C. | The main reflector is hyperbolic and sub-reflector is parabolic |
| D. | The main reflector is hyperbolic and sub-reflector is convex |
| Answer» B. The main reflector is parabolic and sub-reflector is concave | |
| 8. |
Which of the following is a dual reflector antenna? |
| A. | Cassegrain antenna |
| B. | Parabolic antenna |
| C. | Offset reflector antenna |
| D. | Wire antenna |
| Answer» B. Parabolic antenna | |
| 9. |
Reflector antenna operates on the Geometric optics principle? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Which of the following refers to the pattern of reflector in the reflector antenna? |
| A. | Primary pattern |
| B. | Secondary pattern |
| C. | Reflector pattern |
| D. | Feed pattern |
| Answer» C. Reflector pattern | |