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. |
If the reflection co efficient of a 2 port network is 0.25 then the return network loss in the network is: |
| A. | 12.05 dB |
| B. | 0.15 dB |
| C. | 20 dB |
| D. | 10 dB |
| Answer» B. 0.15 dB | |
| 2. |
If the reflection co efficient of a 2 port network is 0.5 then the return network loss in the network is: |
| A. | 6.5 dB |
| B. | 0.15 dB |
| C. | 6.020 dB |
| D. | 10 dB |
| Answer» D. 10 dB | |
| 3. |
Scattering matrix for a lossless matrix is: |
| A. | Unitary |
| B. | Symmetric |
| C. | Identity matrix |
| D. | Null matrix |
| Answer» B. Symmetric | |
| 4. |
S₁₂=0.85-45⁰ and S₁₂=0.85 +45⁰ for a two port network. Then the two port network is: |
| A. | Non-reciprocal |
| B. | Lossless |
| C. | Reciprocal |
| D. | Lossy |
| Answer» B. Lossless | |
| 5. |
Scattering matrix for a reciprocal network is: |
| A. | Symmetric |
| B. | Unitary |
| C. | Skew symmetric |
| D. | Identity matrix |
| Answer» B. Unitary | |
| 6. |
For a one port network , the scattering parameter S₁₁ in terms of impedance parameter Z₁₁ is: |
| A. | (Z11-1)/ (Z11+1) |
| B. | (Z11+1)/ (Z11-1) |
| C. | (Z11+1) (Z11-1) |
| D. | Z11 |
| Answer» B. (Z11+1)/ (Z11-1) | |
| 7. |
The device used to get the measurement of S parameters of n- port micro wave network is: |
| A. | CRO |
| B. | Network analyzer |
| C. | Circulator |
| D. | Attenuator |
| Answer» C. Circulator | |
| 8. |
The specific element Sij of the scattering matrix can be determined as: |
| A. | SIJ= Vi-/Vj+ |
| B. | SIJ= Vi+/Vj- |
| C. | S= Vj+/Vi- |
| D. | None of the mentioned |
| Answer» B. SIJ= Vi+/Vj- | |
| 9. |
The relation between incident voltage matrix , reflected voltage matrix and S matrix for a microwave network: |
| A. | [v-] = [s] [v+]. |
| B. | [v+] = [s] [v-]. |
| C. | [v-] [v] = [s]. |
| D. | [s] = [v] [v-]. |
| Answer» B. [v+] = [s] [v-]. | |
| 10. |
IF_THE_REFLECTION_CO_EFFICIENT_OF_A_2_PORT_NETWORK_IS_0.5_THEN_THE_RETURN_NETWORK_LOSS_IN_THE_NETWORK_IS:?$ |
| A. | 6.5 dB |
| B. | 0.15 dB |
| C. | 6.020 dB |
| D. | 10 dB |
| Answer» D. 10 dB | |
| 11. |
If the reflection co efficient of a 2 port network is 0.25 then the return network loss in the network is:$ |
| A. | 12.05 dB |
| B. | 0.15 dB |
| C. | 20 dB |
| D. | 10 dB |
| Answer» B. 0.15 dB | |
| 12. |
Scattering matrix for a lossless matrix is? |
| A. | Unitary |
| B. | Symmetric |
| C. | Identity matrix |
| D. | Null matrix |
| Answer» B. Symmetric | |
| 13. |
S₁₂=0.85-45⁰ and S₁₂=0.85 +45⁰ for a two port network. Then the two port network is:$ |
| A. | Non-reciprocal |
| B. | Lossless |
| C. | Reciprocal |
| D. | Lossy |
| Answer» B. Lossless | |
| 14. |
Scattering matrix for a reciprocal network is: |
| A. | Symmetric |
| B. | Unitary |
| C. | Skew symmetric |
| D. | Identity matrix |
| Answer» B. Unitary | |
| 15. |
For a one port network , the scattering parameter S‚ÇÅ‚ÇÅ in terms of impedance parameter Z‚ÇÅ‚ÇÅ is:$ |
| A. | (Z<sub>11</sub>-1)/ (Z<sub>11</sub>+1) |
| B. | (Z<sub>11</sub>+1)/ (Z<sub>11</sub>-1) |
| C. | (Z<sub>11</sub>+1) (Z<sub>11</sub>-1) |
| D. | Z<sub>11</sub> |
| Answer» B. (Z<sub>11</sub>+1)/ (Z<sub>11</sub>-1) | |
| 16. |
The device used to get the measurement of S parameters of n- port micro wave network is: |
| A. | CRO |
| B. | Network analyzer |
| C. | Circulator |
| D. | Attenuator |
| Answer» C. Circulator | |
| 17. |
The specific element Sij of the scattering matrix can be determined as: |
| A. | S<sub>IJ</sub>= V<sub>i-</sub>/V<sub>j+</sub> |
| B. | S<sub>IJ</sub>= V<sub>i+</sub>/V<sub>j-</sub> |
| C. | S= V<sub>j+</sub>/V<sub>i-</sub> |
| D. | None of the mentioned |
| Answer» B. S<sub>IJ</sub>= V<sub>i+</sub>/V<sub>j-</sub> | |
| 18. |
The relation between incident voltage matrix , reflected voltage matrix and S matrix for a microwave network: |
| A. | [v-] = [s] [v+]. |
| B. | [v+] = [s] [v-]. |
| C. | [v-] [v] = [s]. |
| D. | [s] = [v] [v-]. |
| Answer» B. [v+] = [s] [v-]. | |
| 19. |
S parameters are expressed as a ratio of: |
| A. | Voltage and current |
| B. | Impedance at different ports |
| C. | Indecent and the reflected voltage waves |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |