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Sundareswaran Iyalunaidu

With over 24 years of dedicated experience, I am a seasoned professional specializing in the commissioning, maintenance, and installation of Electrical, Instrumentation and Control systems. My expertise extends across a spectrum of industries, including Power stations, Oil and Gas, Aluminium, Utilities, Steel and Continuous process industries. Tweet me @sundareshinfohe
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Instrumentation Questions

Test Your Knowledge: Instrument Logic Diagram Quiz Based on Real DCS to MCC Logic Diagram

This advanced quiz is for professionals and students who want to learn how to read Instrument Logic Diagrams (ILDs) in process control systems. The questions test your ability to understand interlocks, permissives, start/stop logic, flip-flop latching, timer delays, and field feedback integration by using...
Control System

How to Read a DCS Cascade Control Loop Diagram: A Complete Guide with Example

Table of ContentsWhat is a Loop Diagram?What is Cascade Control?Purpose of a DCS Cascade Loop DiagramExample System: Fresh Feed Flow Control to a Process UnitProcess Description: Control Strategy and SequenceDetailed Breakdown of Each Component in the DiagramUnderstanding Signal Flow and Terminal PointsImportance of the...
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FAT Activities

Factory Acceptance Test (FAT) Procedure & Checklist for Marshalling Cabinets

Table of ContentsPurpose of the FAT Procedure for Marshalling CabinetScope of the FAT Procedure...
Temperature Measurement

Why Thermocouple Reference Junction Compensation(CJC) is Essential for Accurate Temperature Measurement ?

Table of ContentsDifferential Temperature MeasurementCold Junction Compensation - CJCTechniques for Reference Junction CompensationReference Diagram...
Instrumentation Calculators

Cable Tray Fill Percentage Calculator

Table of ContentsDefinitions in Cable Tray Fill CalculationsImportance of Cable Tray Fill CalculationStep-by-Step cable...
Cybersecurity

Cybersecurity Standards for PLCs

Table of ContentsWhat is Cybersecurity in PLCs?PLC Cybersecurity and Regulatory RequirementsImportance of PLC Cybersecurity...
Installation Procedure

Step-by-Step Guide: Installing & Removing a DP Transmitter with a 5-Way Valve Manifold

Table of ContentsComponents of a 5-Way Valve ManifoldMain Functions of a 5-Way Valve ManifoldStep-by-Step...
Instrumentation Questions

Top 25 Essential MCQ for Gas Analyzer Instrument Technician Interview

Welcome to the Gas Analyzer Instrument Technician Quiz! Designed for professionals in process industries,...
FAT Activities

Factory Acceptance Test(FAT) Procedure for Differential Pressure(DP) Transmitter

Table of ContentsRequired Reference Documents DP Transmitter FATStep by Step Factory Acceptance Test (FAT)...
PLC

How to Calculate and Minimize Voltage Drop in PLC Wiring?

Table of ContentsWhat is Voltage Drop in PLC Wiring?Why is Voltage Drop Calculation Crucial...
Commissioning

Safe Commissioning & Removal of DP Transmitters with a 3-Way Valve Manifold

Table of Contents3 - Way Valve Manifold Essential Component for DP TransmittersBringing a DP...
Checklist

Control Room Workstation Maintenance Procedure with Checklist

Table of ContentsScopeSafety PrecautionsRisk AssessmentWork Permit RequirementsOperational ClearanceControl room Workstation Healthiness Check ProcedurePost-Maintenance ChecksDocumentation...
Automation

Understanding RTU (Remote Terminal Unit): Key Components, Functions, and Applications in Industrial Automation

Table of ContentsRemote Terminal Unit (RTU) and Its ComponentsApplications of RTUsBenefits of RTUsDifferences Between...
Instrumentation Questions

PROFIBUS Quiz: Top 25 Advanced Interview MCQs with Answers for Automation Professionals

Welcome to the ultimate PROFIBUS communication quiz! This quiz is intended for professionals in...
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Instrumentation Questions

Test Your Knowledge: Instrument Logic Diagram Quiz Based on Real DCS to MCC Logic Diagram

This advanced quiz is for professionals and students who want to learn how to...
Control System

How to Read a DCS Cascade Control Loop Diagram: A Complete Guide with Example

Table of ContentsWhat is a Loop Diagram?What is Cascade Control?Purpose of a DCS Cascade...
PLC

Step-by-Step PLC Ladder Logic for Automatic Liquid Mixing Process with Interlocks

Table of ContentsWhy Liquid Mixing Needs AutomationProcess OverviewPLC I/O Address AssignmentLadder Logic Design (Step-by-Step...
Calibration

Why Calibrating your Calibrators is Critically Important: Accuracy, Compliance and ISO 17025 and NIST Traceability

Table of ContentsRole of Calibrators in Process IndustryWhy Calibrating Calibrators are Important ?Importance of...

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