Explore topic-wise MCQs in Digital Signal Processing.

This section includes 11 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.

If the discrimination factor d and the selectivity factor k of a chebyshev I filter are 0.077 and 0.769 respectively, then what is the order of the filter?

A. 2
B. 5
C. 4
D. 3
Answer» C. 4
Discussion
2.

The poles of HN(s).HN(-s) are found to lie on ___________

A. Circle
B. Parabola
C. Hyperbola
D. Ellipse
Answer» E.
Discussion
3.

Which of the following is the characteristic equation of a Chebyshev filter?

A. 1+ <sup>2</sup>T<sub>N</sub><sup>2</sup>(s/j)=0
B. 1- <sup>2</sup>T<sub>N</sub><sup>2</sup>(s/j)=0
C. 1+ T<sub>N</sub><sup>2</sup>(s/j)=0
D. None of the mentioned
Answer» B. 1- <sup>2</sup>T<sub>N</sub><sup>2</sup>(s/j)=0
Discussion
4.

The sum of number of maxima and minima in the pass band equals the order of the filter.

A. True
B. False
Answer» B. False
Discussion
5.

What is the number of maxima present in the pass band of magnitude frequency response of a low pass chebyshev-I filter of order 5?

A. 1
B. 2
C. 3
D. 4
Answer» D. 4
Discussion
6.

What is the number of minima s present in the pass band of magnitude frequency response of a low pass chebyshev-I filter of order 4?

A. 1
B. 2
C. 3
D. 4
Answer» C. 3
Discussion
7.

What is the equation for magnitude frequency response |H(j )| of a low pass chebyshev-I filter?

A. ( frac{1}{ sqrt{1- T_N^2 ( frac{ }{ _P})}} )
B. ( frac{1}{ sqrt{1+ T_N^2 ( frac{ }{ _P})}} )
C. ( frac{1}{ sqrt{1- ^2 T_N^2 ( frac{ }{ _P})}} )
D. ( frac{1}{ sqrt{1+ ^2 T_N^2 ( frac{ }{ _P})}} )
Answer» E.
Discussion
8.

The chebyshev-I filter is equi-ripple in pass band and monotonic in the stop band.

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

If NB and NC are the orders of the Butterworth and Chebyshev filters respectively to meet the same frequency specifications, then which of the following relation is true?

A. N<sub>C</sub>=N<sub>B</sub>
B. N<sub>C</sub>&lt;N<sub>B</sub>
C. N<sub>C</sub>&gt;N<sub>B</sub>
D. Cannot be determined
Answer» C. N<sub>C</sub>&gt;N<sub>B</sub>
Discussion
10.

The chebyshev polynomial is oscillatory in the range |x|&lt; .

A. True
B. False
Answer» C.
Discussion
11.

What is the value of |TN(&amp;pm;1)|?

A. 0
B. -1
C. 1
D. None of the mentioned
Answer» D. None of the mentioned
Discussion