Multistage Amplifier Question & Answers October 17, 2022 By WatElectronics This article lists 50 Multistage Amplifier MCQs for engineering students. All the Multistage Amplifier 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 the fundamentals of Multistage Amplifier. An amplifier is an electric type of device used for the amplification of a signal. This construction has replaced the initial device triode vacuum tube. The quality of operation of an amplifier depends on device parameters such as Gain, bandwidth, linearity, noise, efficiency, and more. They can be connected in a negative or positive feedback fashion. These amplifiers can be single-stage amplifiers, dual-stage amplifiers or multistage amplifiers based on the output required from the device. For obtaining better efficiency from the device the amplifier is connected to multiple amplifier stages, where the output of one amplifier is given as input to another amplifier. Multistage amplifiers are classified into 3 types namely RC coupling, transformer type coupling, and direct coupling type amplifier. The multistage amplifier benefit in terms of flexibility, greater gain achievement, and in and out impedance factor. But lack in terms of noise, minimum power gain, and minimum voltage gain. The applications include voltage amplifiers, final stage-based amplifiers, and audio amplifiers. 1). Which of the following parameter is increased due to multistage amplifier? Bandwidth Gain Frequency Time period Hint 2). Which of the output of an amplifier is given as input of another amplifier and so on is ___ stage amplifier? Single stage Multi stage Zero stage Both a and c Hint 3). Which of the following is the purpose of coupling device? Send AC between circuits Block the DC value Allow DC value Both a and b Hint 4). Which of the following components are used in coupling devices? Resistors Capacitors Transformers All the above Hint Read more about Transformers 5). Which of the following type of current is blocked in an resistive-capacitance type of coupling? AC DC ADC Both a and b Hint 6). ___ is called impedance coupling network? Inductance and capacitance Capacitance and resistance Resistance and inductance None of the above Hint 7). Which of the following is the frequency notation of impedance coupling? jwL jwC jwR jwRC Hint 8). In which of the following type of coupling no capacitor components is used? Transformer type coupling RC type coupling LC type coupling RLC type coupling Hint 9). In a transformer type coupling type amplifier, transformer has ____ component current for conveying from its primary stage to secondary stage? AC DC Both a and b None of the above Hint 10). Which of the following type of coupling does not require base resistance? Transformer type coupling RC type coupling LC type coupling RLC type coupling Hint 11). Which of the following amplifier type has unity gain less than 1? CC CB CE Both a and b Hint 12). Which of the following amplifier type has unity gain more than 1? CC CB CE Both a and b Hint 13). Which of the following type of amplifier is not suitable for intermediate based stages? CC CB CE Both a and b Hint 14). Which of the following type of amplifier is not suitable for cascading? CC CB CE Both a and b Hint 15). Using which of the following property the gain of common emitter amplifier is enhanced? Cascading Intermediate stages Fragmenting Both b and c Hint Multistage Amplifier MCQs for Exams 16). Which of the following are the advantages of RC type coupled amplifiers? Constraint gain over wider frequency Minimum cost Compatible with technology All the above Hint 17). Which of the following are the disadvantages of RC type coupled amplifiers? Minimum voltage gain Minimum power gain Noisy All the above Hint 18). Which of the following are the applications of RC coupled amplifier? Voltage amplifiers Final stage based amplifiers Audio amplifiers All the above Hint 19). The impedance matching of a transformer type coupled amplifier is ____? Excellent Minimum Maximum Both a and c Hint 20). In which of the following terminal of transformer type coupled amplifier the power type loss is null? Base Collector Emitter Both a and b Hint 21). A ___ value of transformer type couple amplifier’s gain the device has poor frequency response? Maximum Minimum Zero Null Hint 22). The direct coupled type amplifier uses ____ number of resistors? Minimum Maximum Zero Both b and c Hint 23). A DC coupled amplifiers are not suitable for ____ frequency amplification? High Low Zero Both b and c Hint 24). Which of the following are the applications of DC coupled amplifier? Low frequency amplifications Low current amplifications High voltage amplification Both a and b Hint 25). Which of the following type of amplifier amplifies the power of the circuit? RC type coupling Transformer type coupling Direct type coupling All the above Hint 26). Coupling type capacitor is also called as____? Blocking type capacitor Unblocking type capacitor Charging type capacitor Both a and n Hint 27). Coupling type capacitor averts _____ type of voltage? AC DC ADC None of the above Hint 28). ____ is the frequency response of an RC coupled amplifier? Flat Straight Pulse Curve Hint 29). Which of the following is the formula for capacitive reactance? Xc = 1/2Pi fc Xc = 1/Pi fc Xc = 1/2 fc Xc = 1/sqrt 2Pi fc Hint 30). At which frequency range, the reactance is maximum? Higher Lower Zero Constant Hint Multistage Amplifier MCQs for Students 31). Which of the following is the mid frequency range? 50 Hz to 20KHz 10 to 20KHz 20 to 30KHz 30 to 40KHz Hint 32). The gain of RC coupled amplifier is ____? High Low Constant Zero Hint 33). Which of the following are the advantages of transformer type coupled Amplifier? Min cost Simple DC gain All the above Hint 34). Which of the following are the disadvantages of transformer type coupled Amplifier? Mini frequency distortion Costly Noise All the above Hint 35). Which of the following are the applications of transformer type coupled amplifier? Power amplification Matches impedance Greater power transmission All the above Hint 36). In which of the following frequency range the RC type coupling frequency is excellent? Audio Video UV X-ray Hint Multistage Amplifier MCQs for Quiz 37). In which of the following coupling type amplifier, the frequency response is poor? RC type coupling Transformer type coupling Direct type coupling Both a and c Hint 38). In which of the following coupling type amplifier, the frequency response is best? RC coupling Transformer type coupling Direct type coupling Both a and c Hint 39). Which of the following type of coupling amplifier occupies large area? RC type coupling Transformer type coupling Direct type coupling Both a and c Hint 40). How many types of frequencies are used in a multistage amplifier? 2 3 4 5 Hint 41). Which of the following parameter/s of a multistage amplifier determines the quality of the multistage amplifier? Voltage gain Current gain Input impedance All the above Hint 42). An amplifier is __ device? Electric Electronic Mechanic Both a and b Hint 43). _____ is defined as the factor to measure the amplification factor of an amplifier? Gain Breakdown Impedance Resistance Hint 44). ____ is the term that defines the difference in frequency value? Bandwidth Gain Noise Stability Hint 45). ___ is defined as ratio between output type power to overall power consumption? Bandwidth Gain Noise Efficiency Hint 46). ____ is an unwanted disturbance in a signal? Noise Music Voice Song Hint 47). __ is the max rate of change of output? Slew rate Stability Rise time Fall time Hint 48). ___ parameter defines the avoiding of self oscillations? Slew rate Stability Rise time Fall time Hint 49). Which of the following are the applications of an amplifier? Radio TV transmitters Hi-Fi All the above Hint 50). Which of the following is the phase shift of inverting amplifier? 90 180 120 360 Hint For More MCQs MOSFET Amplifier Question & Answers Cascade Amplifier Question & Answers DC Amplifier Question & Answers Tuned Amplifier Question & Answers Instrumentation Amplifier Question & Answers Differential Amplifier Question & Answers Class D Amplifier Question & Answers Power Amplifier Question & Answers Low Noise Amplifier Question & Answers Cascode Amplifier Question & Answers Positive Feedback Amplifier Question & Answers Please fill in the comment box below. Time is Up! Time's up
