Band Pass Filter Question & Answers April 20, 2022 By WatElectronics This article lists Band Pass Filter MCQs for engineering students. All the Band Pass 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 Band Pass Filter. A filter is a device used for filtering out unwanted signals in other terms a device that segregates noise from the signal to provide a clear signal message to the receiver. They are classified into different types based on their properties and frequencies. These filter classifications include high pass filter, low pass filter, bandpass filter, band elimination filter, etc. These filters are further designed using the combination of basic filters such as HPF (High Pass Filter) and LPF (Low Pass Filter). A Bandpass filter is a filter that defines the procedure for filtering signals or the type of filter used. They are classified into 2 types’ wide bandpass filter and narrow bandpass filter. Where each of these classifications is designed using HPF and LPF. A narrow bandpass filter comprises 3 components op-amp, resistor, and capacitor. A wide BPF comprises 2 filters namely LPF and HPF. A BPF is deployed in LASER, wireless transmitter and receiver, and seismology. Bandpass Filter benefits in terms of Features low insertion loss, sharp sensitivity factor, and minimum insertion loss. The drawback of BPF is they require a power supply to operate and components are highly sensitive. 1). A Band Pass Filter ____ the signals? Allows required frequencies Blocks unwanted frequencies Blocks required frequencies Both a and b Hint 2). A band pass filter compared with HPF attenuates ____ level signal frequencies? Below cut-off Above cut-off Constant None of the above Hint 3). A band pass filter compared with LPF attenuates ____ level signal frequencies? Below cut-off Above cut-off Constant None of the above Hint 4). How many cut-off frequencies do a band pass filter comprises of? 1 2 3 4 Hint 5). Which of the following components are required in a bandpass filter? Resistor Capacitor Inductor Both a and b Hint Read more about Resistor. 6). Which of the following is the input component in an BPF? Resistor Capacitor Inductor Both a and b Hint Read more about Capacitor. 7). Which of the following is the output component in an BPF? Resistor Capacitor Inductor Both a and b Hint 8). The difference between Lowest and highest cutoff frequency is called ___? Bandwidth Loss ratio Saturation Both a and b Hint 9). Bandpass filter is classified in to ____ number of types? 1 2 3 4 Hint 10). A wide BPF comprises of ___ filters? HPF LPF BRF Both a and b Hint 11). A narrow band pass filter comprises of ___ components? Op-Amp Resistor Capacitor All the above Hint 12). A narrow bandpass filter has ___ number of feedback paths? 2 3 4 5 Hint 13). Which of the following is the application of BPF? LASER Wireless transmitter and receiver Seismology All the above Hint 14). Which of the following is the bandwidth formula of a BPF? FH - FL FL - FH FH / FL FL / FH Hint 15). Characteristics of BPF is plotted between ___? Frequency vs gain Frequency vs Bandwidth Bandwidth vs Output Input vs Output Hint 16). Which of the following is plotted on the X-axis of BPF characteristics? Frequency Gain Bandwidth All the above Hint 17). Which of the following is plotted on the Y-axis of BPF characteristics? Frequency Gain Bandwidth All the above Hint 18). Which of the following is the phase angle of 2 nd order filter? 90 120 180 360 Hint 19). Which of the following is the cutoff frequency formula of a filter? 1/ 2πRC 1/ RC 1/2πC 2πRC Hint 20). What is the value of capacitor when frequency FL is 1000 Hz and resistor is 10,000 ohms. 15.9 nF 14.9nF 13.9nF 12.9 nF Hint 21). Which of the following is the formula for center frequency of a BPF filter? fr= sqrt [ fL * fH] fr= 1/ sqrt [ fL * fH] fr= sqrt [ fL / fH] fr= sqrt [ fL + fH] Hint Band Pass Filter Interview Questions and Answers 22). Frequency is measured in terms of ___ units? Hertz Volts Ohms Farads Hint 23). A band pass filter is also called ___? BPF Pass band filter Band stop filter Both a and b Hint 24). Frequency rejection in filter is also called ___? Attenuation Cut off Termination Both a and c Hint Read more about Attenuation. 25). An active band pass filter comprises of __ number of stages? 2 3 4 5 Hint 26). Which of the following is the input stage of active band pass filter? HPF LPF Amplification None of the above Hint 27). Which of the following is the mid stage of active band pass filter? HPF LPF Amplification None of the above Hint Band Pass Filter Quiz Questions and Answers. 28). An op-amp has ___ number of terminals? 1 2 3 4 Hint 29). A non-inverted terminal of an Op-amp is called ____? Positive Negative Anode Both a and b Hint 30). A inverted terminal of an Op-amp is called ____? Positive Negative Anode Both a and b Hint 31). Which of the following are the components of passive band pass filter? Resistor Capacitor Inductor All the above Hint 32). Which of the following components are connected in series in an passive band pass filter? Resistor Capacitor Inductor Both b and c Hint 33). Which of the following components are connected in parallel in an passive band pass filter? Resistor Capacitor Inductor Both b and c Hint 34). Which of the following is the value of q-factor of wide band pass filter? less than 10 equal to 10 Greater than 10 0 Hint 35). Which of the following is the best example of band pass filter? RC RL RLC Both a and b Hint 36). Which of the following is the property of Band pass filter? Defines type of filter Procedure for filtering Attenuation Both a and b Hint 37). Idyllic type band pass filter does not have ____ properties? Zero gain Zero attenuation Zero speed Both a and b Hint 38). Using a BPF the SNR value of a receiver can be ____? Optimized Maximised Zero None of the above Hint 39). Which of the following is the application of optical BPF? Photography Lights decoration Traffic signals Both a and b Hint 40). Which of the following should be the gain value of a BPF if two first order HPF and LPF are integrated to form a BPF? +/- 20dB +/- 40dB +/- 60dB +/- 120dB Hint Band Pass Filter MCQs for Exams 41). Which of the following should be the gain value of a BPF if two second order HPF and LPF are integrated to form a BPF? +/- 20dB +/- 40dB +/- 60dB +/- 120dB Hint 42). In a narrow BPF the op-amp used operates in ___ mode? Inverted Non-inverted Zero None of the above Hint 43). A narrow BPF is also called ____? Multi-feedback filter Single feedback filter Dual feedback filter Both b and c Hint 44). A filter has ___ number of ports? 1 2 3 4 Hint 45). Which of the following is the formula of Q-factor of a filter? 1/BW 1-BW 1+BW BW Hint 46). A filter with high-Q value has ___ pass band? Narrow Wide Zero Both a and c Hint Read more about Op-amp. 47). Resistance is measured in terms of ____ units? Ohms Farads Henry Both a and c Hint 48). Capacitance is measured in terms of ____ units? Ohms Farads Henry Both a and c Hint 49). The frequency where top bands and pass bands meet is called __? Band edge frequencies Centre frequency Cut off frequency All the above Hint 50). Signal attenuation is measured in terms of ___? Decibels Farads Ohms Henry Hint For More MCQs Low Pass Filter Question and Answers High Pass Filter Question and Answers FIR Filter Question and Answers Please fill in the comment box below. Time is Up! Time's up
