Ideal LPF, HPF, BPF and BSF Characteristics MCQ’s

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This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Ideal LPF, HPF, BPF and BSF Characteristics”.

1. Two network functions are given below.
H= 1s2+2√s+1, H2 = 1s3+2s2+2s+1
The frequency response indicates that the filter is ___________
a) Low-pass
b) Band-pass
c) High-pass
d) Band reject

2. A particular band-pass function has a network function as H(s) = 3ss2+4s+3 then, its quality factor Q is ___________
a) 34
b) 23√
c) 3√2
d) 3√4

3. In the circuit given below, C = C1 = C2. The gain of the multiple-feedback band-pass filter is ___________

tricky-signals-systems-questions-answers-q1

a) A0=R2R1
b) A0=R1R2
c) A0=R22R1
d) A0=R12R2

4. The filter which passes all frequencies above fc by attenuating significantly, all frequencies below fc is _______________
a) Low-pass
b) High-pass
c) Band-pass
d) Band-stop

5. For a Band Pass Filter, the slope of the filter is given as 40dB/decade. The order of the Band Pass Filter is __________
a) 2
b) 3
c) 4
d) 6

6. The circuit given below represents which type of filter circuit?

tricky-signals-systems-questions-answers-q8

a) Low-pass Filter
b) High-pass Filter
c) Band-pass Filter
d) Band-stop Filter

7. For the circuit given below, the cut-off frequency of the filter is ________________

tricky-signals-systems-questions-answers-q5

a) 5283 kHz
b) 5283 Hz
c) 2653.1 kHz
d) 2653.1 Hz

8. The circuit given below represents which type of filter circuit?

tricky-signals-systems-questions-answers-q5

a) Low-pass Filter
b) High-pass Filter
c) Band-pass Filter
d) Band-stop Filter

9. For the circuit given below, the Roll-off value of the filter is _____________

tricky-signals-systems-questions-answers-q9

a) 20 dB/decade
b) 40 dB/decade
c) 60 dB/decade
d) 80 dB/decade

10. In the circuit given below, the Roll-off of the filter is _______________

tricky-signals-systems-questions-answers-q11

a) 20 dB/decade
b) 40 dB/decade
c) 60 dB/decade
d) 80 dB/decade

11. For the circuit given below, the cut-off frequency of the filter is ________________

tricky-signals-systems-questions-answers-q13

a) 3225.8 Hz
b) 7226 Hz
c) 3225.8 kHz
d) 7226 kHz

12. The circuit given below, represents which filter?

tricky-signals-systems-questions-answers-q9

a) Low-pass
b) High-pass
c) Band-pass
d) Band-stop

13. In which of the filter circuits given below, will the bandwidth be equal to the critical frequency?
a) Low-pass
b) High-pass
c) Band-pass
d) Band-stop

14. For providing a Roll-off greater than 20dB/decade/pole, filters with which characteristics are useful?
a) Butterworth
b) Chebyshev
c) Bessel
d) Butterworth & Bessel

15. A Low-pass filter circuit has a cut-off frequency of 1.23 kHz. The bandwidth of the filter is ______________
a) 2.46 kHz
b) 1.23 kHz
c) 0.615 kHz
d) 3.69 kHz

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