MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Microwave Engineering Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Fields of TEM mode on strip line must satisfy: |
| A. | Laplace’s equation |
| B. | Ampere’s circuital law |
| C. | Gaussian law |
| D. | None of the mentioned |
| Answer» B. Ampere’s circuital law | |
| 2. |
If the dielectric material used between the grounded plates of a stripline is 2.2, when the strip line operating at 8 GHz, the wavelength on stripline is: |
| A. | 1.2 cm |
| B. | 2.52 cm |
| C. | 0.15 cm |
| D. | 3.2 cm |
| Answer» C. 0.15 cm | |
| 3. |
If the loss tangent is 0.001 for a stripline operating at 12 GHz with the relative permittivity of the dielectric material being used equal to 2.6, then the conductor loss is: |
| A. | 0.102 |
| B. | 0.202 |
| C. | 0.001 |
| D. | 0.002 |
| Answer» C. 0.001 | |
| 4. |
If the effective width of the center conductor is 3 mm and the distance between the two ground plates is 0.32 cm with the material of the dielectric used having a relative permittivity of 2.5, then what is the characteristic impedance of the strip line? |
| A. | 50Ω |
| B. | 71.071Ω |
| C. | 43.24Ω |
| D. | 121Ω |
| Answer» D. 121Ω | |
| 5. |
The expression for characteristic impedance Zₒ of a stripline is: |
| A. | (30πb/√∈r)(1/We+0.441b) |
| B. | (30πb) (1/We+0.441b) |
| C. | 30π/√∈r |
| D. | (1/We+0.441b) |
| Answer» B. (30πb) (1/We+0.441b) | |
| 6. |
If the phase velocity in a stripline is 2.4*108m/s, and the capacitance per unit length of a micro stripline is 10pF/m, then the characteristic impedance of the line: |
| A. | 50 Ω |
| B. | 41.6 Ω |
| C. | 100 Ω |
| D. | None of the mentioned |
| Answer» C. 100 Ω | |
| 7. |
Expression for propagation constant β of a strip line is: |
| A. | ω(√µ∈∈r) |
| B. | ω(√µₒ/√∈r) |
| C. | ω/(√µₒ∈ₒ∈r) |
| D. | d)c/(√µₒ∈ₒ∈r) |
| Answer» B. ω(√µₒ/√∈r) | |
| 8. |
If the dielectric material filled between the round plates of a microstrip line has a relative permittivity of 2.4, then the phase velocity is: |
| A. | 1.3*108 m/s |
| B. | 1.9*108 m/s |
| C. | 3*108 m/s |
| D. | 2*108 m/s |
| Answer» C. 3*108 m/s | |
| 9. |
The higher order wave guide modes of propagation can be avoided in a strip line by: |
| A. | Restricting both the ground plate spacing and the sidewall width to less than λd/2 |
| B. | Restricting both the ground facing plate spacing and the sidewall width to less than λd |
| C. | Filling the region between 2 plates with di electric |
| D. | Restricting both the ground plate spacing and the sidewall width between λg and λg/2 |
| Answer» B. Restricting both the ground facing plate spacing and the sidewall width to less than λd | |