Electronics Engineering Interview Questions and Answers

Digital Communication Interview Questions and Answers: 1. What is analog communication ? Ans. Analog communication is that type of communication in which message or information signal to be transmitted is analog in nature. This means that in analog communication the modu­lating signal is an analog signal. The analog message signal may be had from sources such […]

Communication Channels Interview Questions and Answers: 1. What is optical communication? Ans. A system of communication in which optical carrier waves are used for transmission of information from one place to another is called as optical communication. 2. What is an optical fiber? Ans. Optical fiber is a glass or plastic fiber that is designed for guid­ing

Optoelectronics Devices Interview Questions and Answers: 1.What are photonic devices? Ans. Photonic devices are those in which the basic particle of light (the photone) plays an important role. Photodetectors, solar cells and LASERS etc, are photonic devices. 2. What is photoelectric effect? Ans. Photoelectric effect is the relationship between collection of light energy and reflection of electrons

Power Semiconductor Devices Interview Questions and Answers: 1. Give the broad classification of power semiconductor devices. Ans. Power semiconductor devices can be broadly classified into three categories viz. power diodes, thyristors and transistors. 2. Which are the members of “thyristor family”? Ans. The member of thyristor family are SCR, diac, triac, Shockley diode, SCS, SBS, SUS, CSCR,

Power Converters Interview Questions and Answers: 1. What is freewheeling diode? Ans. Freewheeling diode is a bypass or commutating diode. It is connected across motor terminals to allow for dissipation of energy stored in motor inductance and to provide for continuity of motor current when the thyristors are blocked. It also provides protection against transient overvoltages.

Pulse Signals Interview Questions and Answers: 1. Define periodic signal. Ans. Periodic signal is that which repeats itself at regular intervals of time. 2. What is meant by a time period of a periodic signal? Ans. Time period of a periodic signal is defined as the time duration in seconds between the start of one pulse and

Linear Waveshaping Interview Questions and Answers: 1. What is waveforming? Ans. Waveforming is a process of generating new waveshape from another waveform using some network. 2. What is meant by linear waveshaping? Give some examples of linear waveshaping circuits. Ans. Linear waveshaping involves passage of signal through linear systems such as R-C, R-L, R-L-C circuits and

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

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.

Integrated Circuits Interview Questions and Answers: 1. What is an IC? Ans. An integrated circuit (IC) is one in which all active and passive components such as transistors, diodes, resistors, capacitors etc. are automatically part of a small semiconductor chip. 2. Why are ICs so cheap? Ans. ICs are so cheap because of simultaneous production of hundreds