Chebyshev Filters 2 MCQ’s

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This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Chebyshev Filters 2″.

1. What is the equation for magnitude frequency response |H(jΩ)| of a low pass chebyshev-I filter?
a) 11−ϵT2N(ΩΩP)√
b) 11+ϵT2N(ΩΩP)√
c) 11−ϵ2T2N(ΩΩP)√
d) 11+ϵ2T2N(ΩΩP)√

2. The poles of HN(s).HN(-s) are found to lie on ___________
a) Circle
b) Parabola
c) Hyperbola
d) Ellipse

3. What is the value of |TN(±1)|?
a) 0
b) -1
c) 1
d) None of the mentioned

4. The chebyshev-I filter is equi-ripple in pass band and monotonic in the stop band.
a) True
b) False

5. 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

6. Which of the following is the characteristic equation of a Chebyshev filter?
a) 1+ϵ2TN2(s/j)=0
b) 1-ϵ2TN2(s/j)=0
c) 1+ϵ TN2(s/j)=0
d) None of the mentioned

7. 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) NC=NB
b) NC<NB
c) NC>NB
d) Cannot be determined

8. The sum of number of maxima and minima in the pass band equals the order of the filter.
a) True
b) False

9. 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

10. The chebyshev polynomial is oscillatory in the range |x|<∞.
a) True
b) False

11. 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

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