MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Horn Antenna knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Find the optimum aperture angle for H-plane horn with aperture 12λ and path travel difference 0.4λ? |
| A. | 75.9° |
| B. | 1.59° |
| C. | 7.59° |
| D. | 15.18° |
| Answer» D. 15.18° | |
| 2. |
What are the length and the flare angle of the H-plane horn antenna with aperture 10 λ and path difference δ=0.2λ? |
| A. | Length=31.8λ,flare angle=4.15° |
| B. | Length=62.5λ,flare angle=9.14° |
| C. | Length=31.8λ,flare angle=9.14° |
| D. | Length=62.5λ,flare angle=4.15° |
| Answer» C. Length=31.8λ,flare angle=9.14° | |
| 3. |
Which of the following is the correct form of design equations of a horn antenna? |
| A. | Length \(ρ=\frac{h^2}{8δ}, flare\, angle=2tan^{-1}\frac{h}{2ρ}\) |
| B. | Length \(ρ=\frac{h^2}{4δ}, flare\, angle=2tan^{-1}\frac{h}{2ρ}\) |
| C. | Length \(ρ=\frac{h^2}{4δ}, flare\, angle=tan^{-1}\frac{h}{2ρ}\) |
| D. | Length \(ρ=\frac{h^2}{8δ}, flare\, angle=tan^{-1}\frac{h}{2ρ}\) |
| Answer» B. Length \(ρ=\frac{h^2}{4δ}, flare\, angle=2tan^{-1}\frac{h}{2ρ}\) | |
| 4. |
Find the flare angle of the H-plane horn with aperture 12λ and path travel difference 0.4λ? |
| A. | 15.18° |
| B. | 7.09° |
| C. | 30.18° |
| D. | 1.518° |
| Answer» B. 7.09° | |
| 5. |
Find the length of the E-plane horn with aperture 12λ and path travel difference 0.4λ? |
| A. | 3.5 λ |
| B. | 45 λ |
| C. | 54 λ |
| D. | 9 λ |
| Answer» C. 54 λ | |
| 6. |
Find the directivity of a pyramidal horn antenna with E-plane aperture width 10λ and H-plane aperture width 15λ? |
| A. | 30.15dB |
| B. | 30.51dB |
| C. | 3.051dB |
| D. | 35.01dB |
| Answer» B. 30.51dB | |
| 7. |
Find the diameter of the conical horn operating at frequency 900MHz with the slant length 1.5cm? |
| A. | 1.224 cm |
| B. | 12.24 cm |
| C. | 0.122 cm |
| D. | 1.224 m |
| Answer» C. 0.122 cm | |
| 8. |
Find the aperture width of the H-plane horn operating at frequency 900MHz with the slant length 5cm? |
| A. | 2.236 cm |
| B. | 22.36 cm |
| C. | 0.224 cm |
| D. | 2.236 m |
| Answer» C. 0.224 cm | |
| 9. |
Find the width of aperture of the E-plane horn operating at frequency 800MHz with the slant length 5cm? |
| A. | 1.936 cm |
| B. | 19.36 cm |
| C. | 0.194 cm |
| D. | 1.936 m |
| Answer» C. 0.194 cm | |
| 10. |
If the flare angle of the horn increases, then its beam width ______ |
| A. | Decreases |
| B. | Increases |
| C. | Depends on aperture of horn |
| D. | Independent of flare angle |
| Answer» C. Depends on aperture of horn | |