MCQOPTIONS
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MCQOPTIONS
This section includes 9 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 distance between the two plates of a parallel plate waveguide is 20 mm and is operating in TE mode, then the cut off frequency of TE mode is: |
| A. | 20 MHz |
| B. | 15 GHz |
| C. | 5 GHz |
| D. | None of the mentioned |
| Answer» C. 5 GHz | |
| 2. |
If in a parallel plate waveguide, PL=4 mW/m and P =10 mW/m, then what is the conduction loss? |
| A. | 0.5 |
| B. | 0.4 |
| C. | 0.1 |
| D. | 0.2 |
| Answer» E. | |
| 3. |
For a parallel plate waveguide, which of the following is true? |
| A. | No real power flow occurs in the z direction |
| B. | Power flow occurs in z direction |
| C. | No power flow occurs in any direction |
| D. | Wave propagation in z direction is not possible in any mode |
| Answer» B. Power flow occurs in z direction | |
| 4. |
Phase velocity of the plane waves in the two direction in a parallel plate waveguide is: |
| A. | 1/ ( )secant |
| B. | 1/ ( )cosecant |
| C. | 1/ ( )tangent |
| D. | 1/ ( )cosine |
| Answer» B. 1/ ( )cosecant | |
| 5. |
For a parallel waveguide, the dominant mode for TM propagation is: |
| A. | TM0 mode |
| B. | TM1 mode |
| C. | TM2 mode |
| D. | Dominant mode does not exist |
| Answer» C. TM2 mode | |
| 6. |
For TM2 mode, if the distance between two parallel plates of a waveguide are 40 mm, then the cut off wavelength for TM2 mode is: |
| A. | 20 mm |
| B. | 80 mm |
| C. | 40 mm |
| D. | 60 mm |
| Answer» D. 60 mm | |
| 7. |
In a parallel plate waveguide, for a propagating mode, the value of is: |
| A. | Real |
| B. | Complex |
| C. | Imaginary |
| D. | Cannot be defined |
| Answer» B. Complex | |
| 8. |
In TM mode, if the direction of wave propagation is in z direction, then: |
| A. | H<sub>Z</sub>=0 |
| B. | E<sub>Z</sub>=0 |
| C. | E<sub>Y</sub>=0 |
| D. | H<sub>Y</sub>=0 |
| Answer» B. E<sub>Z</sub>=0 | |
| 9. |
If the width of a parallel plate waveguide is 30 mm and the distance between the parallel pates is 5 mm, with an intrinsic impedance of 377 , then the characteristic impedance of the wave is: |
| A. | 50 |
| B. | 62.833 |
| C. | 100 |
| D. | None of the mentioned |
| Answer» C. 100 | |