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Electrical Interview Questions

Basic Electronics (MCQs With Explanatory Answers)

Basic Electronics (MCQs With Explanatory Answers)

Basic Electronics (MCQs With Explanatory Answers) Q1. Choose the below option in terms of ascending order of band gap energy Options Diamond, Graphite, Silicon Graphite, Silicon, Diamond Silicon, Graphite, Diamond Silicon, Diamond, Graphite Q2. Band gap Energy for Silicon and Germanium at Room Temperature (300°K) are ____ & ____ respectively: – 56eV, 1.1eV 72eV, 1.2eV 1eV, 0.72eV 1eV, 0.56eV Q3. …

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What is Voltage Stabilizer & How it Works?

What is Voltage Stabilizer. Difference between Stabilizer & Regulator

What is Voltage Stabilizer and Why we need it? Stabilizer Operation, Types and Applications Introduction to Stabilizer: The embedding of microprocessor chip technology and power electronic devices in the design of intelligent AC voltage stabilizers (or automatic voltage regulators (AVR)) led to produce high-quality, stable electric power supply in the event of significant and continuous deviation of mains voltage. As …

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Internet of Things (IOT) and Its Applications in Electrical Power Industry

Internet of Things in Electrical Engineering & Power System Industries

What is Internet of Things (IOT) and Its Application in Electrical Power Systems Several recent digital and smart manufacturing technologies, and design innovations besides the internet connectivity origins Internet of Things (IOT) to become a revolutionary technology in transforming many areas of modern day living. Though the inception of IOT was started in the context of supply chain management, it …

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Is Reactive Power Useful? Importance of Reactive Power

Is Reactive Power Useful? Importance of Reactive Power

What is Reactive Power and Why it is Useful?  In recent years, the reactive power control has been the subject of a systematic study as it plays an important role in maintaining a secure voltage profile in a large scale transmission system. Though it is a byproduct of alternating current systems, it is needed for the acceptable functioning of various …

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MCB (Miniature Circuit Breaker) – Construction, Working, Types & Uses

What is MCB (Miniature Circuit Breaker), its Construction, Working, Types & Applications

What is MCB (Miniature Circuit Breaker), its Construction, Working, Types & How to select proper MCB for different loads rating? Introduction to Miniature Circuit Breakers (MCBs) All fuses need to be replaced with MCB for better safety and control when they have done their job in the past. Unlike a fuse, an MCB operates as automatic switch that opens in …

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Programmable Logic Controllers (PLC) for Industrial Control

What is PLC (Programmable Logic Controller)

PLC – Programmable Logic Controllers for Industrial Control PLC (Programmable Logic Controllers) are widely used in industrial and manufacturing automation systems for improved operational availability and extendable production rates. As industry increasing its production rates without compromising product quality, PLCs are widely accepted by the industry so as to minimize the time and cost of developing a large quantity of …

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What is Industrial Automation | Types of Industrial Automation

What is Industrial Automation

What is Industrial Automation, Their Types and Hierarchy of an Industrial Automation System Today’s highly increasing competitiveness over the industry demands high quality and most consistent products with a competitive price. To address this challenge number of industries considering various new product designs and integrated manufacturing techniques in parallel with the use of automated devices. One of the remarkable and …

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What is a Solenoid and Solenoid Magnetic Field

What is a Solenoid and Solenoid Magnetic Field

What is a Solenoid and Solenoid Magnetic Field What is a Solenoid? Solenoid is an enamel wire (coil wire) wound on a round shaped, made of solid materials like Steel to generate a uniform magnetic field. It acts as an electromagnet, when electric current passes through it. It is also used to control the motion of objects such as control …

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Air Circuit Breaker (ACB): Construction, Operation, Types and Uses

Delixi Air Circuit Breaker External labels (Rated Current and Voltage = 1kA, 415V)

Air Circuit Breaker (ACB): Construction, Operation, Types and Applications  Circuit Breaker A circuit breaker is a device, which can Make or Break a circuit manually or by remote control under normal conditions Break a Circuit automatically under fault conditions (like over current, Short circuit, etc.) Make a circuit manually or by remote control under fault conditions A circuit breaker is …

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