MCQOPTIONS
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MCQOPTIONS
This section includes 23 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. |
What is the maximum value of fp with which good designs are obtained for M odd? |
| A. | 0.25 |
| B. | 0.45 |
| C. | 0.5 |
| D. | 0.75 |
| Answer» C. 0.5 | |
| 2. |
In this section, we confine our attention to FIR designs in which h(n)=h(M-1-n). |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The absolute error between the desired response ω and the approximation Hr(ω) decreases as ω varies from 0 to 2πfp. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
What is the weighting function used in the design of FIR differentiators based on the chebyshev approximation criterion? |
| A. | 1/ω |
| B. | ω |
| C. | 1+ω |
| D. | 1-ω |
| Answer» B. ω | |
| 5. |
What is the desired response of the differentiator in the frequency range 2πfp ≤ ω ≤ π? |
| A. | Left unconstrained |
| B. | Constrained to be zero |
| C. | Left unconstrained or Constrained to be zero |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 6. |
If fp is the bandwidth of the differentiator, then the desired frequency characteristic should be linear in the range of _____________ |
| A. | 0 ≤ ω ≤ 2π |
| B. | 0 ≤ ω ≤ 2fp |
| C. | 0 ≤ ω ≤ 2πfp |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 7. |
Full band differentiators can be achieved with an FIR filters having odd number of coefficients. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
If hd(n) is the unit sample response of an ideal differentiator, then what is the value of hd(0)? |
| A. | 1 |
| B. | -1 |
| C. | 0 |
| D. | 0.5 |
| Answer» D. 0.5 | |
| 9. |
What is the unit sample response corresponding to Hd(ω)? |
| A. | \(\frac{cosπn}{n}\) |
| B. | \(\frac{sinπn}{n}\) |
| C. | n.sin πn |
| D. | n.cos πn |
| Answer» B. \(\frac{sinπn}{n}\) | |
| 10. |
Which of the following is the frequency response of an ideal differentiator, Hd(ω)? |
| A. | -jω ; -π ≤ ω ≤ π |
| B. | -jω ; 0 ≤ ω ≤ π |
| C. | jω ; 0 ≤ ω ≤ π |
| D. | jω ; -π ≤ ω ≤ π |
| Answer» E. | |
| 11. |
IF_FP_IS_THE_BANDWIDTH_OF_THE_DIFFERENTIATOR,_THEN_THE_DESIRED_FREQUENCY_CHARACTERISTIC_SHOULD_BE_LINEAR_IN_THE_RANGE:?$ |
| A. | 0 ≤ ω ≤ 2π |
| B. | 0 ≤ ω ≤ 2f<sub>p</sub> |
| C. | 0 ≤ ω ≤ 2πf<sub>p</sub> |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 12. |
What is the weighting function used in the design of FIR differentiators based on the chebyshev approximation criterion?$ |
| A. | 1/ω |
| B. | ω |
| C. | 1+ω |
| D. | 1-ω |
| Answer» B. ‚âà√¨‚àö¬¢ | |
| 13. |
What_is_the_desired_response_of_the_differentiator_in_the_frequency_range_2πfp_≤_ω_≤_π?$# |
| A. | Left unconstrained |
| B. | Constrained to be zero |
| C. | Either of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 14. |
What is the maximum value of fp with which good designs are obtained for M odd? |
| A. | 0.25 |
| B. | 0.45 |
| C. | 0.5 |
| D. | 0.75 |
| Answer» C. 0.5 | |
| 15. |
Which of the following is the important parameter in a differentiator? |
| A. | Length |
| B. | Bandwidth |
| C. | Peak relative error |
| D. | All of the mentioned |
| Answer» E. | |
| 16. |
The_absolute_error_between_the_desired_response_ω_and_the_approximation_Hr(ω)_decreases_as_ω_varies_from_0_to_2πfp.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 17. |
Full band differentiators can be achieved with an FIR filters having odd number of coefficients? |
| A. | True |
| B. | False |
| Answer» C. | |
| 18. |
Which of the following is the condition that an differentiator should satisfy? |
| A. | Infinite response at zero frequency |
| B. | Finite response at zero frequency |
| C. | Negative response at zero frequency |
| D. | Zero response at zero frequency |
| Answer» E. | |
| 19. |
In this section, we confine our attention to FIR designs in which h(n)=-h(M-1-n). |
| A. | True |
| B. | False |
| Answer» B. False | |
| 20. |
If hd(n) is the unit sample response of an ideal differentiator, then what is the value of hd(0)? |
| A. | 1 |
| B. | -1 |
| C. | 0 |
| D. | 0.5 |
| Answer» D. 0.5 | |
| 21. |
The ideal differentiator ahs which of the following unit sample response? |
| A. | Symmetric |
| B. | Anti-symmetric |
| C. | Cannot be explained |
| D. | None of the mentioned |
| Answer» C. Cannot be explained | |
| 22. |
Which of the following is the frequency response of an ideal differentiator, Hd(ω)?$ |
| A. | -jω ; -π ≤ ω ≤ π |
| B. | -jω ; 0 ≤ ω ≤ π |
| C. | jω ; 0 ≤ ω ≤ π |
| D. | jω ; -π ≤ ω ≤ π |
| Answer» E. | |
| 23. |
How is the frequency response of an ideal differentiator related to the frequency? |
| A. | Inversely proportional |
| B. | Linearly proportional |
| C. | Quadratic |
| D. | None of the mentioned |
| Answer» C. Quadratic | |