Notch Filter/Band Reject Filter Question & AnswersMay 2, 2022 By WatElectronics This article lists 50 Notch Filter/Band Reject Filter MCQs for engineering students. All the Notch Filter/Band Reject Filter Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on their fundamentals on Notch Filter/Band Reject Filter.Bandstop/Band Reject filter or band elimination filter operates opposite to Bandpass filter. The purpose of this type of filter is to reduce the distortion in the signal. This filter blocks specific frequencies ranging between FH and FL cut-off frequencies. But bypass the frequencies which are above the FH and FL frequencies.Band Elimination/Band rejection Filter using an RLC circuit is designed to connect these components in parallel or series configuration. The output is drawn across the Inductor(L) and Capacitor(C) components connected in series. This circuit can be operated in short and open circuits based on the applied frequencies. For instance, the BRF circuit is short-circuited when capacitors are short-circuited and inductors are open and for open-circuited BRF it's vice versa.A Notch filter is a twin T network due to the existence of dual T-shaped-based networks. Applications of the band-stop filter include Image and signal processing.1). Alternative names for Band stop filter______________? Band pass filter Low pass filter High pass filter Band Reject filter HintWhich distorts signal.2).The filter which operates between the frequencies below the fL and above the fH are called _____filter. Stop band filter High pass filter Band pass filter Low pass filter HintRejects the two cut off frequencies.3). In Band stop filter, a high pass filter and a low pass filter are connected in____________. Series Parallel Hybrid None of the above HintDissimilar opposite. Read more about a High Pass Filter.4). Which of the following is the maximum rejection frequency of a Notch Filter ____________. fc=1/2πRC fc=2πRC fc=2π/RC fc=1/4πRC HintCenter frequency.5). The capacitor and resistor are used in the notch filter circuit. Capacitor value must ___________. =2µF >=1/2µF >=1µF >=4µF Hint0 and Negative values.6). Applications of the band-stop filter include____. Image and signal processing Aviations Water department Travels HintFrequencies are determined based on it.7). Band stop filter consists of? One stopband and two passbands Two stopbands and one passband One stopband and one passband None of the above HintIn between two frequencies8). In band stop filter with high frequencies, capacitor become__________ and inductor will be an_________. Short and open circuit Open and short circuit Both are open circuited Both are shorted HintSmall and wide.9). fL represents_____? Cut Off Frequency Of High Pass Filter, HPF Cut Off Frequency Of Low Pass Filter, LPF Cut Off Frequency Of Band Stop Filter Cut Off Frequency Of Band Pass Filter HintL represents low.10). fH represents_____? Cut Off Frequency Of Band Stop Filter Cut Off Frequency Of Band Pass Filter Cut Off Frequency Of High Pass Filter Cut Off Frequency Of Low Pass Filter, Lpf HintH represents high.11). Notch filter is very much useful in eliminating single frequency at_______. 50-60Hz. 55-60Hz. 70Hz. 30Hz HintOperating frequency for circuits (Maximum range).12) The quality factor Q of the circuit can be calculated as_______? Q = fc/B.W Q = fc * B.W Q = 1/fc B.W Q = fc B.W HintRatio of terms.13). Quality factor ‘Q’ is very____ when compared to the bandpass filter. Less High Medium None of the above HintGood efficiency.Notch Filter/Band Reject Filter Quiz Questions and Answers.14). The basic notch filter is designed by using two RC sections in the form of ____. Y L C T HintTwin Notch.15). Notch frequency, fn value __________. fn = 1/2πRC fn = 1/4πRC fn = 1/3πRC fn = 4πRC HintDouble the center frequency16). Band reject filter reduce the ________ of the signal. Distortion Isolation Illumination Visually HintLower signal quality.17). The frequencies between fL and fH are_____________? Strengthened Attenuated Fixed Mixed HintLowered as reaches end frequency.18). The band stop filter is a two-pole filter having two cut-off frequencies, commonly known as _________or half power points. -3dB 3dB 0dB -2dB HintNegative odd value.19). Identify the formula of Bandwidth, BW ? ƒH – ƒL ƒH + ƒL ƒH/ ƒL ƒL /ƒH HintDifference equation.20). Notch filter ___________ the selectivity of the filter. Decreases Increases Null Fluctuates HintEnhances.21). Variable notch filters are also used by musicians in sound equipment such as____? Graphic equalizers Wavefronts Lightning Waveguides HintFiltering equipment’s.22). Twin-T notch filter network also called as ___? Parallel-Tee Serial-Tee Centered Semi-Centered HintSide-by-side.23). Calculate the value of R for the given capacitance of 0.1uF, ƒN = 1000Hz. 800Ω 700Ω 600Ω 500Ω HintHighest even value.24). A band stop filter design with a wide stop band is _______ type of filter? Low Pass Filter Band Pass Filter High Pass Filter Band Reject Filter HintStops/eliminates frequencies.25). Notch filters use a twin-T parallel _______network to obtain a deep notch? Inductance-Capacitance (LC) Inductance-Resistance-Capacitance (LRC) Resistance-Capacitance (RC) None of The Above HintΩµF.26). Component values of stop band filter are determined by transfer function, H(w)=_____. j(ωL-1/ωC)/(R+ (j(ωL-1/ωC))) j(ωC-1/ωL)/(R+ (j(ωC-1/ωL))) j(ωL-1/ωC)/(R- (j(ωL-1/ωC))) j(Ωl+1/ωC)/(R- (j(ωL+1/ωC))) HintRatio of terms.27). Angular frequency ω =________. 2Ω/f 2πf 2π/f 1/2fπ HintProduct of terms.28). Notch filter/passive band stop filter with active component op-amp in _______configuration. Inverting Non-Inverting Reverse Straight HintAddition operation. Read more about Op-amp 29). If the value of the quality factor is high, then the width of the notch filter is:? Narrow Wide Straight Inclined HintVery thin.30). Stop Band Ripple = _______ dB. 20 log10(δs) – 20 log1(δs) – 30 log10(δs) 10 log10(δs) HintMinimum value.31). δs is determined as ________? Magnitude response of the stop band filter Magnitude response of the pass band filter Magnitude response of the high pass filter Magnitude response of the low pass filter, LPF HintWhich distorts signal.Notch Filter/Band Reject Filter MCQs for Exams32). Given data: fL=23 kHz, fH=25 kHz, L=45 mH = 0.045 H, B.W=______________? 20hz 2khz 200khz 1/2khz HintNear to maximum value.33). Resonant Frequency fr =_____ where BW=bandwidth? fH-BW/2 fH+BW/2 fH-BW fH+BW HintDifference of highest frequency and bandwidth.34). Quality factor is directly proportional to________. Q α 1/fr Q α fr Q α B.W Q α B.W/fr HintDirectly proportional.35). If the pole-circular frequency is less than the zero-circular frequency, i.e.,ω p < ωz, then the filter is? Low pass notch type High pass notch type Standard notch type Band pass type HintLess standard.36). If the pole-circular frequency is less than the zero-circular frequency, i.e.,ω p > ωz, then the filter is? Low pass notch type High pass notch type Standard notch type Band pass type HintAttenuates lower frequency.37). If the pole-circular frequency is less than the zero-circular frequency, i.e.,ω p = ωz, then the filter is? Low pass notch type High pass notch type Standard notch type Band pass type HintBasic filter type.38). Applications of Band stop filter? Instrument amplifiers Telephone technology, DSL ECG (Electrocardiogram) measurements All of the above HintExisting applications.39). A simple notch filter is not accurate and reliable because of the ____ signal to noise ratio. High Medium Null Low HintTruncated signal.40). Butterworth’s notch filter is used to_______ accuracy and reliability. Increase Decrease Null None of the above HintEnhancing factor.41). Notch filter or band reject filter contains passive elements resistor, inductor, and capacitor. Therefore, it is known as a__________? Passive notch filter Active notch filter Neutral None of the above HintInactive elements.42). Passive filter comprises only _____? Source dependent elements Source independent elements Both a and b None of the above HintInactive elements.Notch Filter/Band Reject Filter Interview Questions and Answers43).Which component is used for amplification? Resistors Capacitors Inductors Op-Amp Hint3 terminal device.44).The passive notch filter is a combination of ______? Only passive high pass filter Both Only passive low pass filter Both a and b None of the above HintCombination of two filters.45). The upper portion of the passive notch filter circuit contains? Only passive high pass filter Only passive low pass filter Both a and b None of the above HintContains two circuits.46). The lower portion of the passive notch filter circuit contains? Only passive high pass filter Only passive low pass filter Both a and b HintContains two capacitors.47). Optical notch filters are used in ______based Raman spectroscopy? Laser UV Diffraction Infra HintEmits Light.48). Active notch filter contains _____Op-amps. 1 2 3 0 HintOdd number of op-amps.49). Op-amp stage is a summing amplifier or a Op-Amp adder which acts as a________? Summer Subtractor Divider Multiplier HintOp-amp stage is a summing amplifier or a Op-Amp adder which acts as summer.50). RC low pass filter contains ___? Two resistors and one capacitor One resistor and two capacitors Two resistors Two capacitors HintThree components.For More MCQsBand Pass Filter Question & AnswersHigh Pass Filter Question & AnswersFIR Filter Question & AnswersLow Pass Filter Question & Answers Please fill in the comment box below. Time is Up! Time's up
