MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Microwave Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If the wave number of a medium is 20 and loss tangent is 0.4 , then the dielectric loss caused by the medium is: |
| A. | 4 |
| B. | 2 |
| C. | 3 |
| D. | 6 |
| Answer» B. 2 | |
| 2. |
Which of the following is true regarding attenuation? |
| A. | Conductor loss |
| B. | Di-electric loss |
| C. | Sum of both conductor loss and di electric loss |
| D. | Attenuation is different from the losses |
| Answer» D. Attenuation is different from the losses | |
| 3. |
The losses that occur in a transmission line is: |
| A. | Conduction losses |
| B. | Di-electric loss |
| C. | Both of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 4. |
If the intrinsic impedance of a medium is 0.8 , with wave number 125 and being 0.2, then the relative permeability of the medium is: |
| A. | 1.326 |
| B. | 2.34 |
| C. | 4.5 |
| D. | 6.7 |
| Answer» B. 2.34 | |
| 5. |
If p=0.3 and the wave number of air in TM mode is 16, then the intrinsic impedance of air in TM mode given wave number is 125 is: |
| A. | 1 |
| B. | 0.9 |
| C. | 0.8 |
| D. | 2 |
| Answer» C. 0.8 | |
| 6. |
If the wave impedance of a medium is 200 , then what is the relative permittivity of that medium? |
| A. | 1.885 |
| B. | 2 |
| C. | 2.2 |
| D. | 2.5 |
| Answer» B. 2 | |
| 7. |
If a waveguide is filled with a lossless material of relative permeability 2, then the wave impedance in the TEM mode is: |
| A. | 188.5 |
| B. | 170 |
| C. | 123 |
| D. | 345 |
| Answer» B. 170 | |
| 8. |
If a waveguide is filled with a lossy material then the expression for for that material is: |
| A. | = <sub>r</sub>(1-jtan ) |
| B. | = <sub>r</sub> (1/ j tan ) |
| C. | = <sub>r</sub>/(1+ j tan ) |
| D. | = <sub>r</sub>/(1-j tan ) |
| Answer» B. = <sub>r</sub> (1/ j tan ) | |
| 9. |
If the wavelength of a signal is 10 mm, then the wavenumber of the material when a waveguide is filled with that material is: |
| A. | 628 |
| B. | 345 |
| C. | 123 |
| D. | None of the mentioned |
| Answer» B. 345 | |
| 10. |
Maxwell s equation for electromagnetic waves in a waveguide is: |
| A. | E = -j (vector H) |
| B. | E =-j (vector E) |
| C. | H=-j (vector H) |
| D. | H=j (vector H) |
| Answer» B. E =-j (vector E) | |