This set of Instrumentation Transducers Multiple Choice Questions & Answers focuses on “Active Electrical Filters”.
1. In passive filters amplitude-frequency chara of pass band region have_______________
a) Positive slope
b) Negative slope
c) Zero slope
d) None of the mentioned
View Answer
Explanation: In passive filters, pass band of amplitude-frequency chara is flat.
2. Passive filters have infinite attenuation in stop band region.
a) True
b) False
View Answer
Explanation: Attenuation in stop band region of passive filters are not infinite.
3. Which of the following causes noise in passive filters?
a) Capacitor
b) Resistor
c) Inductor
d) None of the mentioned
View Answer
Explanation: Presence of inductor in passive filters causes noise.
4. Which of the filters are lower order filters?
a) Butterworth filter
b) Chebychev filter
c) Bessel filter
d) None of the mentioned
View Answer
Explanation: Butterworth, Chebychev and Bessel filters are passive or active higher order filters.
5. Which of the following have pass band of low frequency range?
a) High pass filter
b) Band pass filter
c) Low pass filter
d) Band stop filter
View Answer
Explanation: Low pass filters have low frequency range as pass band.
6. Which of the following is known as equiripple filters?
a) Chebychev filter
b) Bessel filter
c) Butterworth filter
d) None of the mentioned
View Answer
Explanation: Pass band of chebychev have equal ripple value exhibition and known as equiripple filter.
7. Sharpness of cutoff in Butterworth filter __________ with increasing order.
a) Increases
b) Decreases
c) Nothing happens
d) None of the mentioned
View Answer
Explanation: In Butterworth filter as order increases, cutoff and approach to ideal behavior increases.
8. Which of the following filter is used where the phase is of higher priority?
a) Chebychev filter
b) Butterworth filter
c) Bessel filter
d) None of the mentioned
View Answer
Explanation: Application where the phase is important, a minimal phase shift filter Bessel is used.
9. Biquad network is a ___________ network.
a) 2 terminal
b) 4 terminal
c) 3 terminal
d) 5 terminal
View Answer
Explanation: Biquad network is a four terminal network.
10. Biquad network can be used as _________________
a) Low pass filter
b) High pass filter
c) All pass filter
d) All of the mentioned
View Answer
Explanation: Biquad network can be used as Low pass, high pass or band pass filters.
Sanfoundry Global Education & Learning Series – Instrumentation Transducers.
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