Single Stage Transistor Amplifier Question & AnswersNovember 2, 2021 By WatElectronics This article lists 100 Single-Stage Transistor Amplifier MCQs for Engineering Students. All the Single-Stage Transistor Amplifier Questions & Answers given below includes solution and link wherever possible to the relevant topic.In a single-stage transistor amplifier, the circuit has only one transistor with associated circuitry. The biasing circuit, input capacitor, emitter bypass capacitor, and coupling capacitor are the circuit elements. The single-stage amplifiers are the most convenient and least expensive amplifiers, and it provides high audio fidelity and low-frequency distortion. The tuned voltage amplifiers are categorized into two types they are single tuned voltage amplifier and double tuned voltage amplifier. The tuned amplifiers have high selectivity, low power loss, and very small harmonic distortion and they are used in IF, RF amplifiers, radar, television, etc.The doubled-tuned amplifier uses two inductively coupled circuits. The single tuned amplifiers are classified into two types they are capacitively coupled and transformer-coupled. The transformer-coupled amplifiers are costly, bulky, have high-frequency distortion, are efficient in operation, gain achieved is higher, and there will be no power loss in base and collector resistors. The RC coupled transformer coupled, and direct-coupled amplifiers are the type of amplifiers based on the coupling method whereas the class A, B, C, and class AB amplifiers are the type of amplifiers based on the biasing condition. The disadvantages of RC coupled amplifiers are the power transformer, voltage & power gain are low, and they become noisy with age the advantages of the RC coupled amplifiers are they are cheap and compact.1). How many types of load lines are there? One Two Three Four HintThere are two types of load lines they are AC load lines and DC load lines2). The tuned voltage amplifiers are categorized into __________ types One Two Three Four HintThe tuned voltage amplifiers are categorized into two types they are single tuned voltage amplifier and double tuned voltage amplifier3). We generally use _____________ capacitors in transistor amplifiers Add description here! Mica Electrolytic Both a and b None of the above HintWe generally use electrolytic capacitors in transistor amplifiers4). How many types of gains are there? One Two Three Four HintThere are three types of gains they are current gain, voltage gain, and power gain5). The current gain of a common-base amplifier is __________ <1 <0.5 <0.1 >5 HintThe current gain of a common-base amplifier is less than one6). ______________ are the building block in single transistor amplifier stages Common source, common gate Source follower, series feedback Shunt feedback All of the above HintThe common source, common gate, source follower, shunt feedback, and series feedback are the building block in single transistor amplifier stages7). The _______________ amplifiers are the type of amplifiers based on the number of stages Single-stage amplifier Multi-stage amplifier Both a and b None of the above HintThe single-stage and multi-stage amplifiers are the type of amplifiers based on the number of stages8). The _______________ amplifiers are the type of amplifiers based on the number of stages Single-stage amplifier Multi-stage amplifier Voltage and power amplifiers None of the above HintThe voltage and power amplifiers are the type of amplifiers based on the number of stages9). The voltage gain in common-collector amplifier is ______________ Less than unity Less than one Greater than one None of the above HintThe voltage gain in the common collector amplifier is less than unity10). How many types of couplings are there? One Two Three Four HintThere are three types of couplings are there they are resistance capacitance, impedance and direct, and transformer couplings11). The _______________ amplifiers are the type of amplifiers based on the transistor configuration CE amplifier CC amplifier CB amplifier All of the above HintThe CE, CC, CB amplifiers are the type of amplifiers based on the transistor configuration12). What are the disadvantages of the transformer-coupled amplifier? Bulky Costly Frequency distortion is higher All of the above HintThe transformer-coupled amplifiers are costly, bulky, and has high-frequency distortionRead more about Transformer13). What are the advantages of a transformer-coupled amplifier? Efficient in operation Gain achieved is higher No power loss in base and collector resistors All of the above HintThe transformer-coupled amplifiers are efficient in operation, gain achieved is higher, and there will be no power loss in base and collector resistors14). The _________ amplifiers are the type of amplifiers based on the coupling method RC coupled Transformer coupled Direct coupled All of the above HintThe RC coupled, transformer coupled, and direct-coupled amplifiers are the type of amplifiers based on the coupling method15). The _________ amplifiers are the type of amplifiers based on the biasing condition Class A, Class B Class C Class AB All of the above HintThe class A, B, C, and class AB amplifiers are the type of amplifiers based on the biasing condition16). What are the disadvantages of an RC coupled amplifier? Power transformer will be low Voltage and power gain are low They become noisy with age All of the above HintIn RC coupled amplifier the power transformer, voltage & power gain are low, and they become noisy with age17). What are the advantages of an RC coupled amplifier? Cheap Compact Both a and b None of the above HintThe RC coupled amplifiers are cheap and compact18). The _________ amplifiers are the type of amplifiers based on the frequency response Audio frequency Intermediate frequency Radiofrequency All of the above HintThe audio frequency, intermediate frequency, and radiofrequency amplifiers are the type of amplifiers based on the frequency response19). The _________ amplifiers are the type of amplifiers based on the input signals Small signal & large signal Audio and power RC coupled, Direct-coupled All of the above HintThe small-signal amplifiers and large signal amplifiers are the type of amplifiers based on the input signals20). Which one of the amplifiers is not suitable for cascading? CB amplifier CC amplifier CE amplifier HintThe common base amplifier is not suitable for cascading21). In which one of the following amplifiers the voltage gain is greater than unity? CB amplifier CC amplifier CE amplifier All of the above HintIn common emitter amplifier the voltage gain is greater than unity22). Which one of the amplifiers is not suitable for intermediate stages? CB amplifier CC amplifier CE amplifier All of the above HintThe common-collector amplifier is not suitable for intermediate stages23). The base current, collector current, and emitter current are the various circuit ___________ Elements Currents Both a and b None of the above HintThe base current, collector current, and emitter current are the various circuit elements24). The biasing circuit, input capacitor, emitter bypass capacitor, coupling capacitor are the various circuit _______ Elements Currents Both a and b None of the above HintThe biasing circuit, input capacitor, emitter bypass capacitor, coupling capacitor are the various circuit current25). The doubled tuned amplifier uses ______________ inductively coupled circuits One Two Three Four HintThe doubled tuned amplifier uses two inductively coupled circuitsSingle Stage Transistor Amplifiers MCQ's for Interviews26). The single tuned amplifiers are classified into _____________ types One Two Three Four HintThe single tuned amplifiers are classified into two types they are capacitively coupled and transformer-coupled or inductive coupled tuned amplifiers27). The small-signal tuned amplifiers are used to __________ Amplify low RF signals Operated in class A Power output is low All of the above HintThe small-signal tuned amplifiers are used to amplify low RF signals, and they are operated in class-A mode, and it has a low power output28). The large signal tuned amplifiers are used to __________ Amplify large RF signals Operated in class B, C, or AB modes Power output is more All of the above HintThe large signal tuned amplifiers are used to amplify large RF signals, the power output is more, and it is operated in class B, C, or AB modes29). What are the advantages of tuned amplifiers? Selectivity is high Small power loss Harmonic distortion is very small All of the above HintThe tuned amplifiers have high selectivity, low power loss, and very small harmonic distortion30). The tuned amplifiers are used in _______________ type of amplifiers IF amplifiers Radar, television RF amplifiers All of the above HintThe tuned amplifiers are used in IF, RF amplifiers, radar, television, etc31). The heat sinks are categorized into _______________ types One Two Three Four HintThe heat sinks are categorized into two types they are low power transistor type and high power transistor type heat sinks32). The class A power amplifiers have ____________ efficiency Lesser High Very high Moderate HintThe class A power amplifiers have lesser efficiency compared to other class amplifiers33). Which one of the power amplifiers has more power? Class A Class B Class C Class AB HintThe class B power amplifier has more power compared to other class amplifiers34). In which one of the following amplifiers the harmonic distortion is more? Class A Class B Class C Class AB HintThe harmonic distortion is more in common base amplifier35). The series fed and transformer-coupled are the type of _______________ power amplifier Class A Class B Class C Class AB HintThe series fed and transformer-coupled is the type of class A power amplifier36). The push-pull amplifiers and complementary symmetry circuits are the type of ______________ amplifiers Class A Class B Class C Class AB HintThe push-pull amplifiers and complementary symmetry circuits are the types of class C amplifiers37). What are the advantages of class B power amplifiers? More output power Efficiency is higher Negligible power loss at no signal All of the above HintIn class B power amplifiers the efficiency is higher, output power is more, and there is a negligible power loss at no signal38). In which one of the following power amplifiers the power is less? Class A Class B Class C Class AB HintIn class A power amplifiers the power is less39). In which one of the following power amplifiers the harmonic distortion is more? Class A Class B Class C Class AB HintIn class B power amplifier the harmonic distortion is more40). The power amplifiers are categorized into _______________ types One Two Four Six HintThe power amplifiers are categorized into six types they are Class A, B, C, D, S, and class AB power amplifiers41). In class A power amplifier the active device conducts for the _________ degrees 90 160 180 360 HintIn class A power amplifier the active device conducts for the 360 degrees42). Which one of the following amplifiers has low input resistance? Common emitter Common Base Common Collector None of the above HintThe common base amplifier has a low input resistance43). The Y-parameters are also known as _______________ parameter Impedance Admittance Hybrid None of the above HintThe Y-parameters are also known as admittance parameter44). The H-parameters are also known as _______________ parameter Impedance Admittance Hybrid None of the above HintThe H-parameters are also known as hybrid parameter45). How many types of parameters are there? One Two Three Six HintThere are three types of parameters are there they are Y, Z, and H parameters46). Which one of the following amplifiers has high input resistance? Common emitter Common Base Common Collector None of the above HintThe common-collector amplifier has a high input resistance 47). The Z-parameters are also known as _______________ parameter Impedance Admittance Hybrid None of the above HintThe Z-parameters are also known as impedance parameter48). _____________ are the type of amplifiers based on the bandwidth Class A, Class B Voltage amplifier, current amplifier Narrow and wideband amplifier All of the above HintThe narrowband amplifier and wideband amplifier are the type of amplifiers based on the bandwidth49). ___________ are the characteristics of common base amplifier High voltage gain Small input impedance Large output impedance All of the above HintThe high voltage gain, small input impedance, and large output impedance are the characteristics of common base amplifier50). ___________ are the characteristics of common collector amplifier High current gain Large input impedance Small output impedance All of the above HintThe high current gain, large input impedance, and small output impedance are the characteristics of a common collector amplifierSingle Stage Transistor Amplifiers MCQ's for Exams51). Which one of the following amplifiers has high output resistance? Common emitter Common Base Common collector Both a and b HintThe common emitter and common base amplifiers have a high output resistance52). Which one of the following amplifiers has moderate input resistance? Common emitter Common Base Common Collector None of the above HintThe common emitter amplifier has a moderate input resistance53). ______________ are the characteristics of common emitter amplifier Large current gain, large power gain, large voltage gain Moderate input impedance, moderate output impedance Voltage phase shift of 180 degrees All of the above HintThe large current gain, large power gain, large voltage gain, moderate input impedance, moderate output impedance, and voltage phase shift of 180 degrees are the characteristics of a common emitter amplifier54). Which one of the following amplifiers has a large output impedance? Common emitter Common Base Common Collector None of the above HintThe common base amplifier has a large output impedance55). Which one of the following amplifiers has a small input impedance? Common emitter Common Base Common Collector None of the above HintThe common base amplifier has a small input impedance56). The voltage phase shift of 180 degrees is one of the characteristics of _____________ amplifier Common emitter Common Base Common collector None of the above HintThe voltage phase shift of 180 degrees is one of the characteristics of a common emitter amplifier57). __________ are the basic configurations for single stage BJT amplifier Common emitter Common Base Common collector All of the above HintThe common emitter, common collector, and common base are the basic configurations for single stage BJT amplifier58). The FET and BJT transistors are the type of transistors based on _____________ Active device Q-point Number of stages None of the above HintThe FET and BJT transistors are the type of transistors based on the active device59). How many types of feedbacks are there? One Two Four Six HintThe feedbacks are of two types they are positive and negative feedbacks60). The output signal of series-shunt feedback amplifier is ____________ Voltage Current Frequency None of the above HintThe output signal of series-shunt feedback amplifier is voltage61). The source signal of series-shunt feedback amplifier is ____________ Voltage Current Frequency None of the above HintThe source signal of series-shunt feedback amplifier is voltage62). The source signal of shunt-series feedback amplifier is ____________ Voltage Current Frequency None of the above HintThe source signal of the shunt-series feedback amplifier is current63). Based on the magnitudes of the output and input impedance the amplifiers are categorized into _____________ One Two Four Six HintBased on the magnitudes of the output and input impedance the amplifiers are categorized into four types they are voltage, current, transconductance, and trans resistance amplifiers64). The non-linear waveshaping are categorized into ________________ types One Two Four Six HintThe non-linear waveshaping is categorized into two types they are clippers and clampers65). In ______________ multi-vibrator one state is stable but other is not stable Monostable Bistable Astable None of the above HintIn monostable multi-vibrator one state is stable but the other is not stable66). The source signal of series-series feedback amplifier is ____________ Voltage Current Frequency None of the above HintThe source signal of series-series feedback amplifier is voltage67). The source signal of shunt-shunt feedback amplifier is ____________ Voltage Current Frequency None of the above HintThe source signal of the shunt-shunt feedback amplifier is current68). In ______________ multi-vibrator neither state is stable Monostable Bistable Astable None of the above HintIn astable multi-vibrator neither state is stable69). The flip flop is an application of _______________ multivibrator Monostable Bistable Astable None of the above HintThe flip flop is an application of a bistable multivibrator70). The timer is an application of _______________ multivibrator Monostable Bistable Astable None of the above HintThe timer is an application of a monostable multivibrator71). The oscillator is an application of _______________ multivibrator Monostable Bistable Astable None of the above HintThe oscillator is an application of an astable multivibrator72). The output signal of shunt-series feedback amplifier is ________________ Voltage Current Frequency None of the above HintThe output signal of the shunt-series feedback amplifier is current73). The output signal of series-series feedback amplifier is ________________ Voltage Current Frequency None of the above HintThe output signal of series-series feedback amplifier is current74). How many types of multivibrators are there? One Two Four Three HintThere are three types of multivibrators are there they are astable, monostable, and bistable multivibrators75). The output signal of shunt-shunt feedback amplifier is ________________ Voltage Current Frequency None of the above HintThe output signal of the shunt-shunt feedback amplifier is voltageSingle Stage Transistor Amplifiers MCQ's for Quiz76). How many types of clamping circuits are there? One Two Four Three HintThere are two types of clamping circuits are there they are positive and negative clamping circuits77). Which one of the following is an amplifier efficiency formula? AC output power/DC input power (AC output power/DC input power)*100% DC output power/DC input power None of the above HintThe amplifier efficiency formula is given by (AC output power/DC input power)*100%78). The wave shapings are categorized into ____________ types One Two Four Three HintThe wave shapings are categorized into two types they are linear waveshaping and non-linear waveshaping79). The linear wave shaping is categorized into ____________ types One Two Four Three HintThe linear waveshaping is categorized into two types they are high pass RC circuit and low pass RC circuit80). The ____________ type of coupling will use in RC coupled amplifier Resistance capacitance No coupling Transformer coupling None of the above HintThe resistance-capacitance type of coupling will use in RC coupled amplifier81). What is the standard form of RC coupling amplifier? Resistance Coupling Resistance Capacitance Resistor Capacitor None of the above HintThe standard form of RC coupling amplifier is resistance-capacitance coupling amplifier 82). Which type of coupling will use in a transformer-coupled amplifier? Resistance capacitance No coupling Transformer coupling None of the above HintThe transformer type of coupling will use in the transformer-coupled amplifier83). Which type of coupling will use in a direct-coupled amplifier? Resistance capacitance No coupling Transformer coupling None of the above HintIn direct-coupled amplifier no coupling is use84). ____________ are the important terms related to amplifiers Gain Frequency response Bandwidth All of the above HintThe gain, bandwidth, and frequency response are the important terms related to amplifiers85). The output current divided by the input current is known as ______________ gain Current Voltage Power None of the above HintThe output current divided by the input current is known as current gain86). The output voltage divided by the input voltage is known as ______________ gain Current Voltage Power None of the above HintThe output voltage divided by the input voltage is known as voltage gain87). The output power divided by the input voltage is known as ______________ gain Current Voltage Power None of the above HintThe output power divided by the input power is known as power gain88). The load lines are categorized into _____________ types One Two Four Three HintThe load lines are categorized into two types they are AC and DC load lines89). The amplifier circuits analyzed by ______________ method By drawing its equivalent circuit By graphical method Both a and b None of the above HintThe amplifier circuits analyzed by drawing its equivalent circuit and by graphical method90). The common base amplifiers are used for __________ frequency applications Audio High frequency Impedance None of the above HintThe common base amplifiers are used for high-frequency applications91). The common emitter amplifiers are used for _____________ frequency applications Audio High frequency Impedance None of the above HintThe common emitter amplifiers are used for audio frequency applications92). The common collector amplifiers are used for _____________ Audio High frequency Impedance matching None of the above HintThe common collector amplifiers are used for impedance matching93). The current gain is high in common ____________ amplifier Collector Emitter Base None of the above HintThe current gain is high in common emitter amplifier94). The voltage gain is about 150 in common _________________ amplifier Collector Emitter Base None of the above HintThe voltage gain is about 150 in common base amplifier95). The voltage gain is about 500 in common _________________ amplifier Collector Emitter Base None of the above HintThe voltage gain is about 500 in common emitter amplifier96). The phase shift is 180 degrees in common __________________ amplifier Collector Emitter Base None of the above HintThe phase shift is 180 degrees in common emitter amplifier97). The phase shift is zero degrees in common __________________ amplifier Collector Emitter Base Both a and c HintThe phase shift is zero degrees in the common collector and common base amplifiers98). In which one of the following amplifiers the power gain is low? Common collector Common emitter Common base Both a and c HintIn common collector amplifier the power gain is lowRead more about Amplifiers 99). The voltage gain is less than one in common ________________ amplifier Common collector Common emitter Common base Both a and c HintThe voltage gain is less than one in common collector amplifier100). The current gain is appreciable in common ________________ amplifier Common collector Common emitter Common base Both a and c HintThe current gain is appreciable in common collector amplifier Time is Up! Time's up
