Top 10 MCQ of Filter Engineering & Diploma Student ( Part 2 )

Q 1. What component is typically used in active filters to achieve amplification? 

a) Inductor
b) Capacitor
c) Resistor
d) Operational amplifier (Op-amp)

Answer: d) Operational amplifier (Op-amp)

Q 2. In a digital filter, what process is used to transform a signal from the time domain to the frequency domain? 

a) Convolution
b) Fourier Transform
c) Integration
d) Differentiation

Answer: b) Fourier Transform

Q3. Which filter type is characterized by a gradual roll-off in the stopband? 

a) Butterworth filter
b) Chebyshev filter
c) Elliptic filter
d) Bessel filter

Answer: a) Butterworth filter

Q 4. What is the main advantage of using a Bessel filter? 

a) Sharp cutoff
b) Minimal phase distortion
c) Steep roll-off
d) High gain

Answer: b) Minimal phase distortion

Q 5. Which type of filter is often used to reject 60 Hz power line noise? 

a) Low-pass filter
b) High-pass filter
c) Notch filter
d) Band-pass filter

Answer: c) Notch filter

Q 6. A second-order filter will have a roll-off rate of: 

a) 6 dB per octave
b) 12 dB per octave
c) 18 dB per octave
d) 24 dB per octave

Answer: b) 12 dB per octave

Q 7. What is the effect of increasing the order of a filter? 

a) It decreases the roll-off rate
b) It increases the roll-off rate
c) It reduces the passband
d) It increases the power consumption

Answer: b) It increases the roll-off rate

Q 8. Which type of filter has the characteristic of providing equal ripple in the passband? 

a) Butterworth filter
b) Chebyshev filter
c) Elliptic filter
d) Bessel filter

Answer: b) Chebyshev filter

Q 9. A filter with a narrow bandwidth and high selectivity is best described as having: 

a) A high Q factor
b) A low Q factor
c) High impedance
d) Low impedance

Answer: a) A high Q factor

Q 10. Which filter is commonly used in RF applications to select a narrow band of frequencies for amplification or processing? 

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

Answer: c) Band-pass filter

Top 10 MCQ of Filter Circuit - Engineering & Diploma Student

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