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Electronics Engineering Multiple Choice Questions and Answers (MCQs) Part 5

Electronics Engineering Multiple Choice Questions and Answers (MCQs) Part 5: 198. Which one of the following devices can be turned ‘ON’ or ‘OFF’ by applying gate signal ? (a) SCR. (b) SCS. (c) TRIAC. (d) UJT. Answer : (a) SCR. 199. The uncontrolled electronic switch employed in power electronic converters is (a) thyristor. (b) bipolar […]

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Electronics Engineering Multiple Choice Questions and Answers (MCQs) Part 4

Electronics Engineering Multiple Choice Questions and Answers (MCQs) Part 4: 150. In phase modulation, phase deviation is proportional to (a) carrier amplitude. (b) carrier phase. (c) message signal. (d) message signal frequencies. Answer : (c) message signal. 151. The waveform A cos (ωt + k cos ω2t) is (a) amplitude modulated. (b) frequency modulated. (c)

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Electrical Power Engineering Multiple Choice Questions and Answers (MCQs) Part 2

Electrical Power Engineering Multiple Choice Questions and Answers (MCQs) Part 2: 52. The pair used for frequency converters is (a) squirrel cage induction motor and synchronous motor. (b) slip-ring induction motor and synchronous motor. (c) slip-ring induction motor and squirrel cage induction motor. (d) all of above. Answer : (a) squirrel cage induction motor and

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Thyristor Control of Electric Motors Interview Questions and Answers

Thyristor Control of Electric Motors Interview Questions and Answers: 1. Why the thyristor control is preferred over Ward Leonard system of speed control ? Ans. The thyristor control has some distinct advantages over Ward Leonard system of speed control such as low installation cost, ease of maintenance, higher accuracy, greater reliability, quick response, higher efficiency

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Electronics Engineering Interview Questions and Answers

Electronics Engineering Interview Questions and Answers: 555 IC Timer Interview Questions and Answers Active Filters Interview Questions and Answers Amplifier Frequency Response Interview Questions and Answers Basic DC Circuit Analysis Interview Questions and Answers Basic Electronics Interview Questions and Answers Bipolar Junction Transistors (BJTs) Interview Questions and Answers Cathode Ray Oscilloscope Interview Questions and Answers

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Non Conventional Methods of Power Generation Interview Questions and Answers

Non Conventional Methods of Power Generation Interview Questions and Answers: 1. What are renewable and non-renewable energy resources ? Ans. Renewable energy resources are those resources which can be used to produce energy again and again e.g., hydro energy, solar energy, tidal energy, geothermal energy etc. Non-renewable energy resources are those sources which cannot be

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Nonlinear Waveshaping Interview Questions and Answers

Nonlinear Waveshaping Interview Questions and Answers: 1. What is meant by nonlinear waveshaping? Ans. When any wave is applied at the input of a nonlinear device (such as a diode or transistor), the shape of the output wave varies nonlinearly with input wave. This process is called the nonlinear waveshaping. 2. What is clipping? Ans. Clipping is

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Switching Circuits (Multivibrators) Interview Questions and Answers

Switching Circuits (Multivibrators) Interview Questions and Answers: 1. What is an electric switch? Ans. An electric switch is a device that can turn on or off current in an electrical circuit. 2. What is meant by a switching circuit ? Ans. Switching circuit is that circuit which can turn on or off current in an electrical circuit.

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Operational Amplifiers Interview Questions and Answers

Operational Amplifiers Interview Questions and Answers: 1. What is an op-amp? Ans. The name operational amplifier stems from its original use for mathematical operations (such as addition, subtraction, multiplication, differentiation and integration) and is abbreviated as op-amp. It is a direct-coupled high gain amplifier usually consisting of one or more differential amplifiers and usually followed by

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Linear Applications of Op-Amps Interview Questions and Answers

Linear Applications of Op-Amps Interview Questions and Answers: 1. Give the examples of linear circuits. Ans. Adder, subtractor, differentiator, integrator, voltage-to-current converter, current-to-voltage converter, instrumentation amplifier fall under the category of linear circuits. 2. What is an adder or summing amplifier? Ans. Adder or summing amplifier is a circuit that provides an output voltage proportional to or

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