 
			 
			MCQOPTIONS
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				This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Antennas knowledge and support exam preparation. Choose a topic below to get started.
| 1. | Which of the following layer is known as F layer? | 
| A. | Appleton layer | 
| B. | Kennelly Heaviside layer | 
| C. | Absorption layer | 
| D. | Sir Appleton | 
| Answer» B. Kennelly Heaviside layer | |
| 2. | Which of the following layer is known as absorption layer for short waves? | 
| A. | E layer | 
| B. | F1 layer | 
| C. | F2 layer | 
| D. | D layer | 
| Answer» E. | |
| 3. | Which of the following is formed by the ionization of UV and corpuscular radiations? | 
| A. | E layer | 
| B. | F1 layer | 
| C. | F2 layer | 
| D. | D layer | 
| Answer» D. D layer | |
| 4. | Which of the following layer is used for long distance sky wave propagation during night hours? | 
| A. | F layer | 
| B. | E layer | 
| C. | D layer | 
| D. | All layers can be used | 
| Answer» B. E layer | |
| 5. | Which of the following regions are present in the night time? | 
| A. | D and E layers | 
| B. | E and F layers | 
| C. | F1 and F2 layers | 
| D. | D and F layers | 
| Answer» C. F1 and F2 layers | |
| 6. | Which of the following follows Chapman’s law of variation? | 
| A. | D layer | 
| B. | F1 layer | 
| C. | F2 layer | 
| D. | Both F1 and F2 layer | 
| Answer» C. F2 layer | |
| 7. | In which of the following layers the electron density is high? | 
| A. | E layer | 
| B. | F1 layer | 
| C. | F2 layer | 
| D. | D layer | 
| Answer» D. D layer | |
| 8. | Which of the following is called as Kennelly Heaviside layer? | 
| A. | E layer | 
| B. | F1 layer | 
| C. | F2 layer | 
| D. | D layer | 
| Answer» B. F1 layer | |
| 9. | Which of the following layer disappears during night time in ionosphere? | 
| A. | D layer | 
| B. | E- layer | 
| C. | F1 layer | 
| D. | F2 layer | 
| Answer» B. E- layer | |
| 10. | Which of the following is the nearest Ionospheric layer to the earth surface? | 
| A. | D layer | 
| B. | E layer | 
| C. | F1 layer | 
| D. | F2 layer | 
| Answer» B. E layer | |
| 11. | At what height the Ionosphere lies above the earth surface? | 
| A. | 70-400km | 
| B. | 2-15km | 
| C. | 20-70km | 
| D. | Above 400km | 
| Answer» B. 2-15km | |