MCQOPTIONS
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MCQOPTIONS
This section includes 12 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 a load of 10Ω has to be matched to a transmission line of characteristic impedance of 50Ω, then the characteristic impedance of the matching section of the transmission line is: |
| A. | 50Ω |
| B. | 10Ω |
| C. | 22.36Ω |
| D. | 100Ω |
| Answer» D. 100Ω | |
| 2. |
Quarter wave transformers cannot be used for non-TEM lines for impedance matching. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
THE_REACTANCES_ASSOCIATED_WITH_THE_TRANSMISSION_LINE_DUE_TO_DISCONTINUITIES:?$ |
| A. | Can be ignored |
| B. | Have to matched |
| C. | |
| Answer» C. | |
| 4. |
If_a_load_of_10Ω_has_to_be_matched_to_a_transmission_line_of_characteristic_impedance_of_50Ω,_then_the_characteristic_impedance_of_the_matching_section_of_the_transmission_line_is:$# |
| A. | 50Ω |
| B. | 10Ω |
| C. | 22.36Ω |
| D. | 100Ω |
| Answer» D. 100‚âà√≠¬¨¬© | |
| 5. |
Quarter wave transformers cannot be used for non-TEM lines for impedance matching? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
If a single section quarter wave transformer is used for impedance matching at some frequency, then the length of the matching line is: |
| A. | Is different at different frequencies |
| B. | Is a constant |
| C. | Is λ/2 for other frequencies |
| D. | None of the mentioned |
| Answer» B. Is a constant | |
| 7. |
Converting complex load into real load for impedance matching has no effect on the bandwidth of the match. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Complex load impedance can be converted to real load impedance by: |
| A. | Scaling down the load impedance |
| B. | By introducing an approximate length of transmission line between load and quarter wave transformer |
| C. | Changing the operating wavelength |
| D. | None of the mentioned |
| Answer» C. Changing the operating wavelength | |
| 9. |
The major drawback of the quarter wave transformer that it cannot match complex load to a transmission line cannot be overcome. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
If a narrow band impedance match is required, then more multi section transformers must be used. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
Major advantage of a quarter wave transformer is: |
| A. | It gives proper matching |
| B. | It gives high gain |
| C. | Broader bandwidth |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 12. |
A quarter wave transformer is useful for matching any load impedance to a transmission line. |
| A. | True |
| B. | False |
| Answer» C. | |