Advanced Problems on Filters – 1 MCQ’s

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This set of Network Theory Multiple Choice Questions & Answers (MCQs) focuses on “Advanced Problems on Filters – 1″.

2. Two network functions are given below.
H1 = \frac{1}{s^2 + \sqrt{2}s+1}, H2 = \frac{1}{s^3+2s^2+2s+1}
The frequency response indicates that the filter is ___________
a) Low-pass
b) Band-pass
c) High-pass
d) Band reject

3. A particular band-pass function has a network function as H(s) = \frac{3s}{s^2+4s+3} then, its quality factor Q is ___________
a) \frac{3}{4}
b) \frac{2}{\sqrt{3}}
c) \frac{\sqrt{3}}{2}
d) \frac{\sqrt{3}}{4}

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

network-theory-questions-answers-advanced-problems-filters-1-q1

a) A0 = \frac{R_2}{R_1}
b) A0 = \frac{R_1}{R_2}
c) A0 = \frac{R_2}{2R_1}
d) A0 = \frac{R_1}{2R_2}

4. 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

6. The circuit given below, represents which filter?

network-theory-questions-answers-advanced-problems-filters-1-q5

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

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

network-theory-questions-answers-advanced-problems-filters-1-q5

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

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

network-theory-questions-answers-advanced-problems-filters-1-q5

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

7. 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

9. 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

11. 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

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

network-theory-questions-answers-advanced-problems-filters-1-q12

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

10. In a moving iron meter, the deflection torque is proportional to?
a) Square of the current through the coil
b) Current through the coil
c) Sine of measurand
d) The Square root of the measurand

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

network-theory-questions-answers-advanced-problems-filters-1-q12

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

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

network-theory-questions-answers-advanced-problems-filters-1-q14

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

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

network-theory-questions-answers-advanced-problems-filters-1-q14

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

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