MCQOPTIONS
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MCQOPTIONS
This section includes 20 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 TE01 mode of wave propagation in a rectangular waveguide, if the smaller dimension of the waveguide is 2 cm, then the cutoff wavelength for that mode is: |
| A. | 4 cm |
| B. | 8 cm |
| C. | 1 cm |
| D. | 2 cm |
| Answer» B. 8 cm | |
| 2. |
In TE10 mode of wave propagation in a rectangular waveguide, if the broader dimension of the waveguide is 40 cm, then the cutoff wavelength for that mode is: |
| A. | 8 cm |
| B. | 6 cm |
| C. | 4 cm |
| D. | 2 cm |
| Answer» B. 6 cm | |
| 3. |
The cutoff frequency for the dominant mode in TM mode propagation for a rectangular waveguide of dimension of 30mm*40mm is: |
| A. | 2 GHz |
| B. | 1 GHz |
| C. | 2 MHz |
| D. | 4 MHz |
| Answer» B. 1 GHz | |
| 4. |
The lowest mode of TM wave propagation is: |
| A. | TM10 mode |
| B. | TM01 mode |
| C. | TM11 mode |
| D. | TM12 mode |
| Answer» D. TM12 mode | |
| 5. |
For dominant mode propagation in TE mode, if the rectangular waveguide has a broader dimension of 31.14 mm , then the cutoff wave number: |
| A. | 100 |
| B. | 500 |
| C. | 50 |
| D. | 1000 |
| Answer» B. 500 | |
| 6. |
TEₒₒ mode for a rectangular waveguide: |
| A. | Exists |
| B. | Exists but defined only under special cases |
| C. | Does not exist |
| D. | Cannot be determined |
| Answer» D. Cannot be determined | |
| 7. |
For TE1ₒ mode, if the waveguide is filled with air and the broader dimension of the waveguide is 2 cm, then the cutoff frequency is: |
| A. | 5 MHz |
| B. | 7.5 MHz |
| C. | 7.5 GHz |
| D. | 5 GHz |
| Answer» D. 5 GHz | |
| 8. |
The modes of propagation supported by a rectangular wave guide is: |
| A. | TM, TEM, TE modes |
| B. | TM, TE |
| C. | TM, TEM |
| D. | TE, TEM |
| Answer» C. TM, TEM | |
| 9. |
THE_LOWEST_MODE_OF_TM_WAVE_PROPAGATION_IS:?$ |
| A. | TM10 mode |
| B. | TM01 mode |
| C. | TM11 mode |
| D. | TM12 mode |
| Answer» D. TM12 mode | |
| 10. |
In TE10 mode of wave propagation in a rectangular waveguide, if the broader dimension of the waveguide is 40 cm, then the cutoff wavelength for that mode is:$ |
| A. | 8 cm |
| B. | 6 cm |
| C. | 4 cm |
| D. | 2 cm |
| Answer» B. 6 cm | |
| 11. |
The cutoff frequency for the dominant mode in TM mode propagation for a rectangular waveguide of dimension of 30mm*40mm is:$ |
| A. | 2 GHz |
| B. | 1 GHz |
| C. | 2 MHz |
| D. | 4 MHz |
| Answer» B. 1 GHz | |
| 12. |
In TE01 mode of wave propagation in a rectangular waveguide, if the smaller dimension of the waveguide is 2 cm, then the cutoff wavelength for that mode is: |
| A. | 4 cm |
| B. | 8 cm |
| C. | 1 cm |
| D. | 2 cm |
| Answer» B. 8 cm | |
| 13. |
For dominant mode propagation in TE mode, if the rectangular waveguide has a broader dimension of 31.14 mm , then the cutoff wave number? |
| A. | 100 |
| B. | 500 |
| C. | 50 |
| D. | 1000 |
| Answer» B. 500 | |
| 14. |
TE‚Çí‚Çí mode for a rectangular waveguide:$ |
| A. | Exists |
| B. | Exists but defined only under special cases |
| C. | Does not exist |
| D. | Cannot be determined |
| Answer» D. Cannot be determined | |
| 15. |
For TE1‚Çí mode, if the waveguide is filled with air and the broader dimension of the waveguide is 2 cm, then the cutoff frequency is:$ |
| A. | 5 MHz |
| B. | 7.5 MHz |
| C. | 7.5 GHz |
| D. | 5 GHz |
| Answer» D. 5 GHz | |
| 16. |
Dominant mode is defined as: |
| A. | Mode with the lowest cut off frequency |
| B. | Mode with the highest cut off frequency |
| C. | Any TEM mode is called a dominant mode |
| D. | None of the mentioned |
| Answer» B. Mode with the highest cut off frequency | |
| 17. |
In TE mode of wave propagation in a rectangular waveguide, what is the equation that has to be satisfied? |
| A. | (∂<sup>2</sup>/ ∂x<sup>2</sup> + ∂<sup>2</sup>/ ∂y<sup>2</sup>+ kC<sup>2</sup>).HZ(x, y) =0 |
| B. | (∂<sup>2</sup>/ ∂x<sup>2</sup> + ∂<sup>2</sup>/ ∂y<sup>2</sup>– kC<sup>2</sup>).HZ(x, y) =0 |
| C. | (∂<sup>2</sup>/ ∂x<sup>2</sup> – ∂<sup>2</sup>/ ∂y<sup>2</sup>+ kC<sup>2</sup>).HZ(x, y) =0 |
| D. | None of the mentioned |
| Answer» B. (‚Äö√Ñ√∂‚àö‚Ć‚àö√°<sup>2</sup>/ ‚Äö√Ñ√∂‚àö‚Ć‚àö√°x<sup>2</sup> + ‚Äö√Ñ√∂‚àö‚Ć‚àö√°<sup>2</sup>/ ‚Äö√Ñ√∂‚àö‚Ć‚àö√°y<sup>2</sup>‚Äö√Ñ√∂‚àö√ë‚àö¬® kC<sup>2</sup>).HZ(x, y) =0 | |
| 18. |
For any mode of propagation in a rectangular waveguide, propagation occurs: |
| A. | Above the cut off frequency |
| B. | Below the cut off frequency |
| C. | Only at the cut-off frequency |
| D. | Depends on the dimension of the waveguide |
| Answer» B. Below the cut off frequency | |
| 19. |
A hollow rectangular waveguide cannot propagate TEM waves because: |
| A. | Of the existence of only one conductor |
| B. | Of the losses caused |
| C. | It is dependent on the type of the material used |
| D. | None of the mentioned |
| Answer» B. Of the losses caused | |
| 20. |
The modes of propagation supported by a rectangular wave guide is: |
| A. | TM, TEM, TE modes |
| B. | TM, TE |
| C. | TM, TEM |
| D. | TE, TEM |
| Answer» C. TM, TEM | |