MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Signal Processing knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In which of the following transformations, it doesn t matter whether the frequency transformation is performed in the analog domain or in frequency domain? |
| A. | Impulse invariance |
| B. | Mapping of derivatives |
| C. | Bilinear transformation |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 2. |
It is better to perform the mapping from an analog low pass filter into a digital low pass filter by either of these mappings and then perform the frequency transformation in the digital domain. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
We can employ the analog frequency transformation followed by conversion of the result into the digital domain by use of impulse invariance and mapping the derivatives. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
The impulse invariance method and mapping of derivatives are inappropriate to use in the designing of high pass and band pass filters due to aliasing problem. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Which of the following methods are inappropriate to design high pass and many band pass filters? |
| A. | Impulse invariance |
| B. | Mapping of derivatives |
| C. | Impulse invariance & Mapping of derivatives |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 6. |
What should be the value of |ak| to ensure that a stable filter is transformed into another stable filter? |
| A. | < 1 |
| B. | =1 |
| C. | > 1 |
| D. | 0 |
| Answer» B. =1 | |
| 7. |
The mapping z-1 g(z-1) must be __________ |
| A. | Low pass |
| B. | High pass |
| C. | Band pass |
| D. | All-pass |
| Answer» E. | |
| 8. |
The unit circle must be mapped outside the unit circle. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
The mapping z-1 g(z-1) must map inside the unit circle in the z-plane into __________ |
| A. | Outside the unit circle |
| B. | On the unit circle |
| C. | Inside the unit circle |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 10. |
The frequency transformation in the digital domain involves replacing the variable z-1 by a rational function g(z-1). |
| A. | True |
| B. | False |
| Answer» B. False | |