Wien Bridge Oscillator Question & Answers May 9, 2022 By WatElectronics This article lists 50 Wien Bridge Oscillator MCQs for Engineering Students. All the Wien Bridge Oscillator Questions & Answers given below includes solution and 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 the Wien bridge oscillator. The Wein bridge oscillators are two-stage RC amplifier circuit, it is used to find unknown values of the components. In most cases, this oscillator is used in the audio. The maximum output frequency of the Wein bridge oscillator is 1 MHz and this frequency is from a phase shift oscillator and the total phase shift of the oscillator is from 360 or 0 degrees. The Wien bridge oscillator is a type of electronic oscillator that produces sinewaves. This oscillator has low-frequency distortion and high quality of resonant frequency in the tuning. The oscillators are circuits that are used for the generation of oscillations at the output and those oscillations are nothing but AC signals. The oscillators do not use any input signal for producing the output signal but it uses the power supply and as long as the power supply is available the oscillators produce signals at the output. The circuit of the Wein bridge oscillators has lead and lag networks. The lags in the phase shift increase the frequency and the leads in the shift decrease the frequency The advantage of the Wien bridge oscillator is that the achievement of variable frequency is easy and it provides a good quality of sine wave at the output. The disadvantage of the Wien bridge oscillator is it requires more number of amplifier stages and it has poor frequency stability. 1). Which one of the following oscillators doesn't provide 180 degrees phase shift in a feedback network? RC phase shift oscillator Wein bridge oscillator Both a and b None of the above None Hint 2). In which one of the following oscillator noninverting modes of the op-amp is used? RC phase shift oscillator Wein bridge oscillator Both a and b None of the above None Hint 3). In which one of the following oscillators the amplifier gain is greater than or equal to 29? RC phase shift oscillator Wein bridge oscillator Both a and b None of the above None Hint 4). In which one of the following oscillators the frequency variation adjustment is very easy? RC phase shift oscillator Wein bridge oscillator Both a and b None of the above None Hint 5). Which one of the following options is incorrect for a Wein bridge oscillator? Difficult to tune Low distortion Both a and b None of the above None Hint 6). Which one of the following bridges is a type of DC bridge? Wheatstone bridge Schering bridge Wein bridge All of the above None Hint 7). Which one of the following bridges is used to measure the capacitance? De-sauty’s bridge Schering bridge Wein bridge All of the above None Hint 8). Which one of the following bridges is used to measure very low resistance? Kelvin double bridge Wein bridge Both a and b None of the above None Hint 9). Which one of the following bridges is not suitable to measure Q coils? Maxwells inductance bridge Maxwells inductance capacitance bridge Both a and b None of the above None Hint 10). Which one of the following bridges is suitable for low Q coil? Maxwells inductance bridge Owen’s bridge Both a and b None of the above None Hint 11). Which one of the following oscillators is a type of RC oscillator? Wein bridge Phase shift Hartley Both a and b None Hint 12). Which one of the following oscillators has very high-frequency stability? LC oscillator Crystal oscillator Hartley oscillator All of the above None Hint 13). The phase shift oscillator is an example of ________________ oscillator? LC oscillator Crystal oscillator RC oscillator All of the above None Hint 14). The Hartley oscillator is an example of ________________ oscillator? LC oscillator Crystal oscillator RC oscillator All of the above None Hint 15). Which one of the following oscillators uses an inductance capacitance network to determine the frequency of an oscillator? LC oscillator RC oscillator Both a and b All of the above None Hint Wein Bridge Oscillators MCQs for Exams 16). The input current noise in an op-amp circuit noise model is always represented by _______________ source? Voltage Current Both a and b None of the above None Hint 17). The noisiness of a signal is defined as a ratio of RMS signal voltage divided by _____________ voltage? Voltage Current Noise None of the above None Hint 18). The flicker noise increases as the frequency ________________ ? Increases Decreases Constant Zero None Hint 19). Which one of the following noises is also known as 1/f noise? Flicker noise Burst noise Avalanche noise All of the above None Hint 20). The shot noise stops when the ______________ flow stops? Current Voltage Noise None of the above None Hint 21). Which one of the following noises is also known as quantum noise? Shot noise Burst noise Avalanche noise All of the above None Hint 22). The parallel resonance frequency in the crystal oscillator is always greater than ______________ resonance? Series Parallel Both a and b None of the above None Hint 23). In which one of the following the oscillators are used? Counters Digital multimeters Calculators All of the above None Hint 24). Which one of the following is used for crystal oscillator construction? Rochelle Salt Quartz All of the above None Hint 25). The operation of the crystal oscillators is based on the _____________ effect? Wein bridge Crystal Piezoelectric All of the above None Hint 26). The two pi phase shift in wein bridge oscillator achieved by _____________ stage amplifier? One Two Three Four None Hint 27). Which one of the following is a type of internal noise? Shot noise Thermal noise Avalanche noise All of the above None Hint 28). The figure shown below is a circuit diagram of ____________ oscillator? Wein bridge Crystal Piezoelectric All of the above None Hint Read more about Oscillators 29). The Colpitts oscillator uses ________________ type of circuit in feedback loop? LC oscillator RC oscillator Both a and b All of the above None Hint 30). Which one of the following oscillators provides 180 degrees phase shift in a feedback network? RC phase shift oscillator Wein bridge oscillator Both a and b None of the above None Hint Wein Bridge Oscillators MCQs for Interviews 31). In which one of the following oscillator inverting modes of an op-amp is used? RC phase shift oscillator Wein bridge oscillator Both a and b None of the above None Hint 32). In which one of the following oscillators the amplifier gain is greater than or equal to 3? RC phase shift oscillator Wein bridge oscillator Both a and b None of the above None Hint 33). In which one of the following oscillators the frequency variation adjustment is very difficult? RC phase shift oscillator Wein bridge oscillator Both a and b None of the above None Hint 34). The wein bridge oscillators have __________________ distortion? High Very high Low None of the above None Hint 35). Which one of the following bridges is a type of DC bridge? Wheatstone bridge Schering bridge Wein bridge Both b and c None Hint 36). Which one of the following bridges is used to measure high resistance? Mega ohm bridge Maxwell’s inductance bridge Hay’s bridge None of the above None Hint 37). Which one of the following bridges is suitable for high Q coil? Maxwells inductance bridge Maxwells inductance capacitance bridge Hay’s bridge None of the above None Hint 38). Which one of the following bridges is used to measure medium resistance? Add description here! Wheat stone bridge Corey fosters Both a and b None of the above None Hint 39). Which one of the following bridges is used to measure capacitance? Schering's bridge Desauty’s bridge Heaviside mutual inductance bridge Both a and b None Hint 40). Which one of the following oscillators is not a type of RC oscillator? Wein bridge Phase shift Hartley None of the above None Hint Wein Bridge Oscillators MCQs for Quiz 41). Which one of the following oscillators uses a resistance-capacitance network to determine the frequency of an oscillator? LC oscillator RC oscillator Both a and b All of the above None Hint 42). The oscillators are categorized into _______________ types? One Two Three Four None Hint 43). The input voltage noise in an op-amp circuit noise model is always represented by _______________ source? Voltage Current Both a and b None of the above None Hint 44). The flicker noise present in _________________ devices? Active Passive Both a and b None of the above None Hint 45). Which one of the following bridges is used to measure inductance? Mega ohm bridge Maxwell’s inductance bridge Hay’s bridge Both b and c None Hint 46). Which one of the following bridges is suitable to measure Q coils? Maxwells inductance bridge Maxwells inductance capacitance bridge Both a and b None of the above None Hint 47). Which one of the following oscillators has poor frequency stability? LC oscillator Crystal oscillator Hartley oscillator Both a and c None Hint 48). Which one of the following oscillators is used at medium and low frequencies? LC oscillator RC oscillator Crystal oscillator None of the above None Hint 49). Which one of the following bridges is used for mutual inductance? Schering's bridge Heaviside mutual inductance bridge Desauty’s bridge Both a and b None Hint 50). Which one of the following bridges is used for measuring low Q coils? Owens bridge Desauty’s bridge Schering bridge None of the above None Hint Read more about Wein Bridge Oscillators For More MCQs Oscillators Question & Answers Please fill in the comment box below. Time's up
