MCQOPTIONS
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MCQOPTIONS
This section includes 19 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. |
With an increase in the operating frequency of a micro strip line, the effective di electric constant of a micro strip line: |
| A. | Increases |
| B. | Decreases |
| C. | Independent of frequency |
| D. | Depends on the material of the substrate used as the microstrip line |
| Answer» D. Depends on the material of the substrate used as the microstrip line | |
| 2. |
The effective dielectric constant ∈r for a microstrip line: |
| A. | Varies with frequency |
| B. | Independent of frequency |
| C. | It is a constant for a certain material |
| D. | Depends on the material used to make microstrip |
| Answer» C. It is a constant for a certain material | |
| 3. |
The wave number in air for EM wave propagating on a micro strip line operating at 10GHz is given by: |
| A. | 200 |
| B. | 211 |
| C. | 312 |
| D. | 209 |
| Answer» E. | |
| 4. |
For most of the micro strip substrates: |
| A. | Conductor loss is more significant than di electric loss |
| B. | Di electric loss is more significant than conductor loss |
| C. | Conductor loss is not significant |
| D. | Di-electric loss is less significant |
| Answer» B. Di electric loss is more significant than conductor loss | |
| 5. |
If the wave number of an EM wave is 301/m in air , then the propagation constant β on a micro strip line with effective di electric constant 2.8 is: |
| A. | 602 |
| B. | 503.669 |
| C. | 150 |
| D. | 200 |
| Answer» C. 150 | |
| 6. |
The effective di electric constant of a micro strip line with relative permittivity being equal to 2.6, with a width of 5mm and thickness equal to 8mm is given by: |
| A. | 2.6 |
| B. | 1.97 |
| C. | 1 |
| D. | 2.43 |
| Answer» C. 1 | |
| 7. |
The effective dielectric constant of a micro strip line is 2.4, then the phase velocity in the micro strip line is given by: |
| A. | 1.5*108 m/s |
| B. | 1.936*108 m/s |
| C. | 3*108 m/s |
| D. | None of the mentioned |
| Answer» C. 3*108 m/s | |
| 8. |
FOR_MOST_OF_THE_MICRO_STRIP_SUBSTRATES:?$ |
| A. | Conductor loss is more significant than di electric loss |
| B. | Di electric loss is more significant than conductor loss |
| C. | Conductor loss is not significant |
| D. | Di-electric loss is less significant |
| Answer» B. Di electric loss is more significant than conductor loss | |
| 9. |
The effective dielectric constant ‚ààr for a microstrip line:$# |
| A. | Varies with frequency |
| B. | Independent of frequency |
| C. | It is a constant for a certain material |
| D. | Depends on the material used to make microstrip |
| Answer» C. It is a constant for a certain material | |
| 10. |
The_wave_number_in_air_for_EM_wave_propagating_on_a_micro_strip_line_operating_at_10GHz_is_given_by:$ |
| A. | 200 |
| B. | 211 |
| C. | 312 |
| D. | 209 |
| Answer» E. | |
| 11. |
With_an_increase_in_the_operating_frequency_of_a_micro_strip_line,_the_effective_di_electric_constant_of_a_micro_strip_line: |
| A. | Increases |
| B. | Decreases |
| C. | Independent of frequency |
| D. | Depends on the material of the substrate used as the microstrip line |
| Answer» D. Depends on the material of the substrate used as the microstrip line | |
| 12. |
If the wave number of an EM wave is 301/m in air , then the propagation constant β on a micro strip line with effective di electric constant 2.8 is?# |
| A. | 602 |
| B. | 503.669 |
| C. | 150 |
| D. | 200 |
| Answer» C. 150 | |
| 13. |
The effective di electric constant of a micro strip line with relative permittivity being equal to 2.6, with a width of 5mm and thickness equal to 8mm is given by: |
| A. | 2.6 |
| B. | 1.97 |
| C. | 1 |
| D. | 2.43 |
| Answer» C. 1 | |
| 14. |
The effective dielectric constant of a micro strip line is 2.4, then the phase velocity in the micro strip line is given by: |
| A. | 1.5*10<sup>8</sup> m/s |
| B. | 1.936*10<sup>8</sup> m/s |
| C. | 3*10<sup>8</sup> m/s |
| D. | None of the mentioned |
| Answer» C. 3*10<sup>8</sup> m/s | |
| 15. |
Effective dielectric constant of a microstrip is given by: |
| A. | (‚àà<sub>r</sub> + 1)/2 + (‚àà<sub>r</sub>-1)/2 * 1/ (‚àö1+12d/w) |
| B. | (‚àà<sub>r</sub>+1)/2 + (‚àà<sub>r</sub>-1)/2 |
| C. | (‚àà<sub>r</sub>+1)/2 (1/‚àö1+12d/w) |
| D. | (‚àà<sub>r</sub> + 1)/2-(‚àà<sub>r</sub>-1)/2 |
| Answer» B. (‚Äö√Ñ√∂‚àö‚Ć‚àö‚Ć<sub>r</sub>+1)/2 + (‚Äö√Ñ√∂‚àö‚Ć‚àö‚Ć<sub>r</sub>-1)/2 | |
| 16. |
The effective di electric constant of a microstrip line is: |
| A. | Equal to one |
| B. | Equal to the permittivity of the material |
| C. | Cannot be predicted |
| D. | Lies between 1 and the relative permittivity of the micro strip line |
| Answer» E. | |
| 17. |
Microstrip line can support a pure TEM wave. |
| A. | True |
| B. | False |
| C. | Microstrip supports only TM mode |
| D. | Microstrip supports only TE mode |
| Answer» C. Microstrip supports only TM mode | |
| 18. |
The mode of propagation in a microstrip line is: |
| A. | Quasi TEM mode |
| B. | TEM mode |
| C. | TM mode |
| D. | TE mode |
| Answer» B. TEM mode | |
| 19. |
Micro strip can be fabricated using: |
| A. | Photo lithographic process |
| B. | Electrochemical process |
| C. | Mechanical methods |
| D. | None of the mentioned |
| Answer» B. Electrochemical process | |