Prepare Electrical Engineering interview questions for freshers and experienced candidates. This page includes important questions, answer previews, preparation guidance, related interview topics and cached content for faster page loading.
Electrical Engineering interview questions and answers for freshers and experienced candidates, including basic concepts, advanced topics, practical examples, project discussion points and common HR preparation guidance.
For better preparation, read each question carefully, understand the concept, prepare one real example, and connect your answer with your project or work experience.
Quick list of important Electrical Engineering interview questions. Detailed answer previews are available below.
Answer: PLC is a programmable logic controller which can handle the binary input and output of the logic statement which are stored in its memory.Its a digitally operating system which are logic stored in its memory by programming system. DCS:-Distributed control system its control all types ofprocess variable at a time through this we can control the whole plant,we can see the status of plant,and handling the units.
View detailed answer →Answer: Cold Loop checking: Checking of wires continuity of respective field instrument-Junction box-DCS/PLC marshalling panel terminal. Hot loop checking: Once you power up your field instrument through DCS/PLC system, by stimulating process input from respective field instrument and cross check its response at DCS/PLC sytsem. There is no such differnce as a cold and hot loop check. There is a wiring/ point to point that all should do before carrying out a loop check from field device to DCS display.
View detailed answer →Answer: 1. Program mode - In this mode the processor will not execute the output even if all the inputs are healthy. 2. Run Mode - Normal Operation Mode 3.Remote run - PLC run as per HMI OR PC interfacing with it.
View detailed answer →Answer: SCADA abbreviated as Supervisory Control and Data Aquision. Simply it will collect the date from the hardware controller (DCS, PLC) and shows the process variables like Pressure, Temperature, Flow, Level etc.This software product used to monitor, control(by using back end Hardware controller like DCS, PLC etc) your process data Whereas DCS abbreviated as Distributed Control System. DCS having it's own network, Hardware controller and Software Package. The system having different Hardware controller connected in the network (own by individual vendor like Honeywell, Yokogawa, Foxboro, ABB, Emerson etc) and shows the process variable through SCA...
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