Electronics MCQ

1. Free running multivibrator is also called as A. Stable multivibrator B. Voltage control oscillator C. Square wave oscillator D. Pulse stretcher   2. The output voltage of the phase detector is A. Phase voltage B. Free running voltage C. Error voltage D. None of the mentioned   3. At which state the phase-locked loop …

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555 Timer MCQ   1. Monostable multivibrator may be used to generate sweep voltage pulses sinusoidal voltage sweep current   2. A 1 μs pulse can be converted into a 1 ms pulse by using A monostable multivibrator An astable multivibrator A bistable multivibrator A J – K flip-flop   3. The pulse width out …

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APPLICATION OF OP-AMP MCQ   1. A limiter circuit is also known as a clamp circuit chopping circuit clipper circuit chopper circuit   2. Which of the following circuits is used to add a DC offset to the waveform? Clamper Clipper Amplifier Rectifier   3. Circuit used to shift the DC level of the input …

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D-A and A-D Converter MCQ   1. Express the output voltage of digital to analog converter? A. Vo =KVFS(d12-1+d22-2+….dn2-n) B. Vo =VFS/k(d12-1+d22-2+….dn2-n) C. Vo =VFS(d12-1+d22-2+….dn2-n) D. Vo =K(d12-1+d22-2+….dn2-n)   2. Why the switches used in weighted resistor DAC are of single pole double throw (SPDT) type? A. To connect the resistance to reference voltage B. To connect the resistance …

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Comparators and Waveform Generator MCQ   1. What is the Barkhausen criterion for oscillation? A. Aß > 1 B. Aß < 1 C. Aß = 1 D. Aß ≠ 1   2. At what condition the output signal can be continuously obtained from the input signal? A. When the product of input voltage and the …

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Active Filter MCQ   1. An electrical filter is a A. Phase-selective circuit B. Frequency-selective circuit C. Filter-selective circuit D. None of the mentioned   2. Filters are classified as A. Analog or digital B. Passive or active C. Audio or radio-frequency D. All of the mentioned   3. Why inductors are not preferred for …

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Operational Amplifier Application MCQ   1. An inverting amplifier that amplifies dc input level is called A. DC and AC amplifier B. AC amplifier C. DC amplifier D. None of the mentioned   2. Why DC amplifier uses offset null circuitry? A. To reduce the distortion in the output B. To improve the accuracy of …

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Limitations of Op-Amp Circuit MCQ   1. The major source of the interference with the desired signal in an electronic system is called A. Error signal B. Interference signal C. Noise signal D. Faulty signal   2. Identify the external noise sources A. Switching of rotating machinery B. Control circuits C. Ignition system D. All …

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Operational Amplifier Fundamental MCQ   1. What makes the output voltage equal to zero in practical op-amp? A. Input offset voltage B. output offset voltage C. Offset minimizing voltage D. Error voltage   2. What happens due to a mismatch between two input terminals in an op-amp? A. Input offset voltage B. Output offset voltage …

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Characteristics of Operational Amplifier MCQ   1. Miniaturization of components with superior performance can be obtained in A. Integrated circuits B. Discrete circuits C. Both integrated and discrete circuits D. None of the mentioned   2. Why Integrated Circuits are considered to be economical? A. Simple manufacturing process B. Provide trouble-free service C. Due to …

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