MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
In a certain microwave transmission line, the characteristic impedance was found to be 210 10 and propagation constant 0.2 78 .What is the impedance Z of the line, if the frequency of operation is 1 GHz? |
| A. | 0.035+j41.97 |
| B. | 0.35+j4.97 |
| C. | 35.6+j4.28 |
| D. | 9.254+j4.6 |
| Answer» B. 0.35+j4.97 | |
| 2. |
A microwave generator at 1.2 GHz supplies power to a microwave transmission line having the parameters R=0.8 /m, G=O.8millisiemen/m, L=0.01 H/m and C=0.4PF/m. Propagation constant of the transmission line is: |
| A. | 0.0654 +j0.48 |
| B. | 0.064+j4.8 |
| C. | 6.4+j4.8 |
| D. | none of the mentioned |
| Answer» B. 0.064+j4.8 | |
| 3. |
Expression for phase constant is: |
| A. | LC |
| B. | LC |
| C. | 1/ ( LC) |
| D. | None of the mentioned |
| Answer» C. 1/ ( LC) | |
| 4. |
If the admittance and the impedance of a transmission line are 100 and 50 of a respectively, then value of phase constant is: |
| A. | 0 |
| B. | 20 |
| C. | 132 |
| D. | 50 |
| Answer» B. 20 | |
| 5. |
If a transmission line with inductive reactance of 41.97 and capacitive reactance of 1132.5 is operated at 1 GHz , then its phase constant is: |
| A. | 0.0305 |
| B. | 0.3 |
| C. | 30.3 |
| D. | 0.6 |
| Answer» B. 0.3 | |
| 6. |
If propagation constant is 12:60 , then the value of phase constant and attenuation constant is: |
| A. | =6, =10.39 |
| B. | =61, =78 |
| C. | =12, =20.6 |
| D. | none of the mentioned |
| Answer» B. =61, =78 | |
| 7. |
The value of for a lossless line is: |
| A. | 0 |
| B. | 1 |
| C. | Infinity |
| D. | Data insufficient |
| Answer» B. 1 | |