Explore topic-wise MCQs in Digital Signal Processing.

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
Discussion
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.
Discussion
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.
Discussion
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
Discussion
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
Discussion
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
Discussion
7.

Full band differentiators can be achieved with an FIR filters having odd number of coefficients.

A. True
B. False
Answer» C.
Discussion
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
Discussion
9.

What is the unit sample response corresponding to Hd(ω)?

A. \(\frac{cos⁡πn}{n}\)
B. \(\frac{sin⁡πn}{n}\)
C. n.sin πn
D. n.cos⁡ πn
Answer» B. \(\frac{sin⁡πn}{n}\)
Discussion
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.
Discussion
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
Discussion
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¬¢
Discussion
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
Discussion
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
Discussion
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.
Discussion
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.
Discussion
17.

Full band differentiators can be achieved with an FIR filters having odd number of coefficients?

A. True
B. False
Answer» C.
Discussion
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.
Discussion
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
Discussion
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
Discussion
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
Discussion
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.
Discussion
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
Discussion