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Job Description for a Senior Designer Instrumentation

Senior Instrument Designer – Oil & Gas (10+ Years Experience) Location: Office-Based (Chennai) · Full-Time · Instrumentation Department Role Summary We are seeking an experienced Senior...

Material Certification : 2.1, 2.2, 3.1 and 3.2 : What An Instrument Engineer should know

Strategic Material Certification and Integrity Assurance CERTIFICATION REPORT 1. Traceability 1.1 Standards 1.2 NACE 2. Instrumentation 3. Valves 4. Bulk Items 5. Fasteners 6. Control Sys 7. ITP 8...

SIS installation and commissioning : SIL Loop Testing Procedure

SIL Loop Testing & IEC 61511 Compliance Report Comprehensive Research Report: SIL Loop Testing Procedures & IEC 61511 Compliance Functional Safety Management during Commissioning...

O₂, Moisture, and H₂S Analyzer interview questions

Analyzer Interview Questions: O₂, Moisture & H₂S Analyzer Interview Masterclass O₂ Oxygen | Moisture | H₂S Hydrogen Sulfide Oxygen (O₂) Moisture H₂S General & Sampling Oxygen (O₂) Analyzers...

Orifice Plate Vs Restriction Orifice Plates: Key differences

Click here to Donate Orifice Plate vs. Restriction Orifice: A Comprehensive Guide InstrunexusInsights Home Orifice Plates Restriction Orifices Comparison Applications Orifice Plate vs. Restriction...

Support Instrunexus – Powering Practical Instrumentation Knowledge

Instrunexus — Support the Channel IN Support Instrunexus Instrunexus creates practical, engineer-focused content to help instrumentation professionals and students. If you find the content useful...

Instrumentation Devices : Working Principles Explained

Instrumentation Engineering: Top 50 Interview Q&A Instrumentation Working Principles Comprehensive Top 50 Interview Questions & Answers (No Equations) Pressure Measurement Q1 How does a...

Toxic Gas Detectors Working principle : Back to Basics

Toxic Gas Detection Technologies – Full Guide GasTech Explorer Intro Gases Technologies Types Compare Guide Intro Gases Technologies Types Compare Guide Toxic Gas Detection Technologies Toxic...

Flammable gas detectors : Back to Basics

Flammable Gas Detectors Interactive Guide to Flammable Gas Detectors An overview of principles, technologies, and applications. Overview Core Concepts Technologies Comparison Applications Why Gas...

Question and Answer

O₂, Moisture, and H₂S Analyzer interview questions

Analyzer Interview Questions: O₂, Moisture & H₂S Analyzer Interview Masterclass O₂ Oxygen | Moisture | H₂S Hydrogen Sulfide Oxygen (O₂) Moisture H₂S General & Sampling Oxygen (O₂) Analyzers...

Instrumentation Devices : Working Principles Explained

Instrumentation Engineering: Top 50 Interview Q&A Instrumentation Working Principles Comprehensive Top 50 Interview Questions & Answers (No Equations) Pressure Measurement Q1 How does a...

Continuous Emission Monitoring System (CEMS) : Top 50 Question and Answers

Top 50 CEMS Interview Questions Top 50 CEMS (SOx/NOx/CO/Opacity) Interview Questions & Answers Part 1: CEMS Fundamentals 1. What is a Continuous Emission Monitoring System (CEMS)? A CEMS is a...

High Pressure Protection System (HIPPS) : Back to Basics

Interactive Overview: HIPPS HIPPS Overview Introduction Architecture Scenarios Comparison Applications IntroductionArchitectureScenariosComparisonApplications What is a HIPPS? This application...

ISO 5167 – DP Flow Elements : Top 50 Question and Answers

ISO 5167 Interview Guide (Orifice, Venturi, Nozzle) ISO 5167 Design & Calculation Guide Top 50 Interview Questions & Answers Table of Contents Purpose of ISO 5167? Main Parts of ISO 5167?...

Instrumentation for Rotating Equipment (Compressors & Turbines) : Top 50 Question and Answers

Top 50 Instrumentation Q&A: Rotating Equipment Top 50 Interview Q&A Instrumentation for Rotating Equipment (Compressors & Turbines) 1. Explain the difference between Relative and...

Pressure Instruments Selection of Types and Ranges : Top 50 Q&A

Top 50 Interview Questions: Pressure Instrument Selection Pressure Instrument Selection Top 50 Interview Questions and Comprehensive Answers Q1. What are the key factors to consider when selecting a...

Industrial Signal Standards & Wiring : Top 50 Q&A for your next interview

Top 50 Interview Q&A: Industrial Signal Standards & Wiring Top 50 Industrial Signal Standards & Wiring Q&A Comprehensive, Elaborate Answers for Advanced Interviews I. 4-20 mA...

Thermal Mass flowmeter : Top 50 Question and Answers to know every Instrument Engineer

Thermal Mass Flowmeter: Top 50 Interview Q&A (Full Sheet) Thermal Mass Flowmeter Top 50 Interview Questions & Comprehensive Answers This sheet is designed for quick review of core principles...

Tools and Calculators

Material Take Off Generator (MTO)

Instrument Hook-up MTO Generator Instrument MTO Generator Generate a Consolidated Material Take Off 1. Select Instruments & Quantities Add New Type Select All Deselect All Reset Generate...

Instrument Datasheet – Comprehensive I&C Engineering Checklists for EPC Projects

Universal Instrument Datasheet — Final Self-Verification Checklist Universal Instrument Datasheet — Final Self-Verification Checklist Applies to pressure/temperature/flow/level transmitters; control...

Generate I&C Deliverables Need for Conceptual, FEED, and Detailed Design.

I&C Project Deliverables Generator (Single-File) I&C Project Deliverables Generator Layout preserved. DCS IO: FEED → “Preliminary IO Schedule — DCS”; no DCS preliminary IO in Conceptual. 1)...

SIL Determination TOOL Using Risk Matrix – IEC 61511

Interactive SIL Determination Application SIL Determination Hub Home Framework Calculator Lifecycle HomeFrameworkCalculatorLifecycle Understanding Functional Safety This application translates the...

Flow meter selection Chart

Infographic: How to Choose the Right Flow Meter The Engineer’s Guide to Flow Measurement Choosing the right flow meter is critical for efficiency, safety, and profitability. This guide...

Accuracy Calcualtor

Transmitter Accuracy Checker (SI · O&G) Transmitter Accuracy Checker SI units · Oil & Gas · IEC/ISA lens · Accuracy threshold is derived from the selected model. 1) Select Instrument &...

IEC 61508 SIL Risk Graph Tool (C/F/P/W, Low-Demand)

SIL Risk Graph Calculator · IEC 61508 (C/F/P/W) SIL Risk Graph Calculator IEC 61508 C/F/P/W method. Choose levels and click Calculate to get the resulting SIL. (Orientation aid only; validate per your...

PFDavg calculations for your Safety Instrumented Functions (SIF)

SIF PFDavg Calculator (1oo1, 1oo2, 2oo2, 2oo3) SIF PFDavg Calculator MVP Project Name SIF Tag Number Preparer Date λd Units FIT (failures / 109 hours)1/hr Changing this converts λd numbers in-place...

SIL Determination using Layer of Protection Analysis (LOPA)

Interactive LOPA & SIL Determination Tool Interactive LOPA & SIL Determination Tool Section 1: Foundational Concepts of LOPA 1.1 The Philosophy of Defense-in-Depth The core principle...

Functional Safety

SIS installation and commissioning : SIL Loop Testing Procedure

SIL Loop Testing & IEC 61511 Compliance Report Comprehensive Research Report: SIL Loop Testing...

High Pressure Protection System (HIPPS) : Back to Basics

Interactive Overview: HIPPS HIPPS Overview Introduction Architecture Scenarios Comparison...

Roadmap for Professionals to Get Certified Functional Safety Expert

Roadmap for Professionals to Get Certified Functional Safety Expert (CFSE / FSEng) Roadmap for...

IEC 61508 : An Comprehensive Guide

zIEC 61508: A Comprehensive Framework for Functional Safety in E/E/PE Systems I. An Introduction to...

A Comprehensive Analysis of Alarm Management and the ISA-18.2 Standard

A Comprehensive Analysis of Alarm Management and the ISA-18.2 Standard Section 1: Executive Summary...

Fault Tree Analysis (FTA): The Ultimate Guide for Engineers

Interactive Fault Tree Analysis Explorer Fault Tree Analysis Explorer Fundamentals Methodology...

SIL Determination TOOL Using Risk Matrix – IEC 61511

Interactive SIL Determination Application SIL Determination Hub Home Framework Calculator Lifecycle...

IEC 61508 SIL Risk Graph Tool (C/F/P/W, Low-Demand)

SIL Risk Graph Calculator · IEC 61508 (C/F/P/W) SIL Risk Graph Calculator IEC 61508 C/F/P/W method...

PFDavg calculations for your Safety Instrumented Functions (SIF)

SIF PFDavg Calculator (1oo1, 1oo2, 2oo2, 2oo3) SIF PFDavg Calculator MVP Project Name SIF Tag Number...

Section Title

Valve Seat Leakage & Fire Test Standards Explained (API 6D, API 607, ANSI/FCI 70-2)

Interactive Guide to Valve Testing Standards Valve Standards Navigator Selector Leakage Standards Fire Test Standards Comparison Full Report Interactive Standard Selector Answer a few questions to...

Valve Fire Safe Design – Test Standards: Guide to API 607, 6FA & ISO 10497 a comparison

Interactive Guide to Valve Fire Test Standards 🔥 Valve Fire Safety Standards Dashboard Deep Dive Decision Guide Study Hub & Quiz DashboardDeep DiveDecision GuideStudy Hub & Quiz Comparison...

The Ultimate Control Valve Guide: 200 Questions & Answers

Control Valve Master Question & Answer Guide Control Valve Master Q&A Guide A comprehensive resource of 200 questions covering design, manufacturing, testing, installation, troubleshooting...

Control Valve Sizing Calculator

Control Valve Sizing ISA-75.01.01 (IEC 60534-2-1) 1. Global Settings Units Metric (kPa, m³/h, kg/h, °C)Imperial (psi, gpm, lb/h, °F) Fluid State LiquidGas / Vapour Atmospheric Pressure (kPa abs) Valve...

Advanced quiz on Control valves for Process Engineers

Advanced Control Valves Quiz for Process Engineers Advanced Control Valves Quiz A 30-question quiz for Process Engineers. Quiz Results Submit Quiz Reset Quiz...

Best Practices for Control Valve Calibration and Stroke Checking

Best Practices for Control Valve Calibration and Stroke Checking In the intricate world of industrial process control, the humble control valve plays a pivotal role. It is the final control element...

How to Interpret Control Valve Symbols on P&IDs (With Examples)

How to Interpret Control Valve Symbols on P&IDs (With Examples) In the intricate world of process industries, Piping and Instrumentation Diagrams (P&IDs) serve as the definitive roadmap. These...

Anti-Surge Control Valves: Design Considerations and Applications

In the heart of many industrial processes, from oil and gas refining to chemical production and power generation, lies a critical piece of rotating equipment: the centrifugal compressor. These...

Understanding Control Valve Hysteresis, Deadband & Response Time

In the world of process control, the control valve plays a pivotal role. It is the final control element, the muscle that translates the brain’s (the controller’s) commands into physical...

Quiz - Multiple Choice Questions (MCQs)

ISO 5167 Flow Measurement Quiz. : Top 50 Questions

ISO 5167 Quiz ISO 5167 Flow Measurement Quiz Test your knowledge on Orifice, Venturi, and Nozzle...

Personal & Process Safety Quiz LOTO, PTW, & Safe Isolation Practices (50 Questions)

Personal & Process Safety Quiz Personal & Process Safety Quiz LOTO, PTW, & Safe...

API RP 555 : Process Analyzer : Top 50 Quiz

API RP 555 Process Analyzer Quiz API RP 555 Process Analyzer Quiz Top 50 Best Practices and Examples...

Fire & Gas Detectors – types, placement, testing : Top 50 Quiz for Technicians

Top 50 Quiz: Fire & Gas Detectors Fire & Gas Detectors Quiz Test Your Knowledge on Best...

Hazardous Area Classifications : Top 50 Quiz for Technical Safety and Instrumentation

Hazardous Area Classification Quiz HAZLOC Classification Quiz (50 Qs) Test your knowledge on...

Junction Boxes : Cable Termination Top 50 Quiz for Construction Instrument Engineer

Top 50 Quiz: Junction Boxes & Cable Terminations Junction Boxes & Cable Terminations Quiz...

Preventive vs. Corrective Maintenance Quiz : Top 60 For Maintanance Engineer

50-Question Maintenance Quiz Preventive vs. Corrective Maintenance Quiz Test your knowledge on best...

Hazardous Area Classification : 50 Quiz for Technical safety and Instrument Engineers

Hazardous Area Classification Quiz HAZARDOUS AREA CLASSIFICATIONS QUIZ Test your knowledge with...

Commissioning & Pre-Commissioning : Top 50 Quiz for Instrument Technicians

C&PC Key Checks Quiz – 50 Questions Commissioning & Pre-Commissioning Quiz –...

Interview Preparation

Road map to shift your career to Instrument Engineering

Roadmap: Technician to Instrument Engineer The Technician to Instrument Engineer Roadmap A comprehensive guide to leveraging your hands-on skills and building the engineering knowledge you need for...

How to maintain a strong Professional Relationship in an Engineering office

How to Build Strong Professional Relationships in an Engineering Design Office IN How to Build Strong Professional Relationships in an Engineering Design Office A practical guide for engineers —...

How to Answer : Why Should We Hire you

How to Answer “Why Should We Hire You?” (Engineer vs. Technician) — InstruNexus IN How to Answer “Why Should We Hire You?” (Engineer vs. Technician) www.instrunexus.com • A practical, oil &...

Most Common HR question and how to answer them for a successful Interview

Common HR Questions: Complete Guide for Engineers & Professionals IN Common HR Questions — A Complete, Real-World Guide (with STAR Answers) Tailored for engineers, designers, and technical...

Mock Interview Form for a Instrument Fresher

  Print / Save as PDF Clear form IN Mock Interview – Instrumentation Engineer (Fresher) Evaluation Sheet • Consistent with InstruNexus brand InstruNexus • www.instrunexus.com 1️⃣ Candidate...

Teamwork and Coordination with Multi-disciplinary Teams

Teamwork & Coordination with Multi-disciplinary Teams for Design Engineers (Oil & Gas) Teamwork & Coordination with Multi-disciplinary Teams for Design Engineers (Oil & Gas) From...

Behavioral Questions For Operators In Oil & Gas

Behavioral Interview Questions for Oil & Gas Operations: What They Are, Types, and How to Answer IN Behavioral Interview Questions for Operations in Oil & Gas What they are, the types...

Behavioral Questions For Oil & Gas Engineers

What Are Behavioral Questions? Types, Examples & Winning Answers for Oil & Gas Design Engineers IN What Are Behavioral Questions? Types, Examples & Winning Answers (Oil & Gas...

“Mastering Professional Email Writing for Engineers: 10 Proven Templates and Real-World Examples”

Professional Email Writing for Engineers — InstruNexus Professional Email Writing for Engineers Clear, concise, and credible communication for design offices, sites, vendors, and clients. InstruNexus...

Flow

ISO 5167 Flow Measurement Quiz. : Top 50 Questions

ISO 5167 Quiz ISO 5167 Flow Measurement Quiz Test your knowledge on Orifice, Venturi, and Nozzle design. Submit Quiz Reset...

ISO 5167 – DP Flow Elements : Top 50 Question and Answers

ISO 5167 Interview Guide (Orifice, Venturi, Nozzle) ISO 5167 Design & Calculation Guide Top 50 Interview Questions & Answers Table of Contents Purpose of ISO 5167? Main Parts of ISO 5167?...

Coriolis Mass Flowmeter : Working principle, Design and Applications

  The Coriolis Mass Flow Meter: A Comprehensive Technical Review of Principles, Design, and Industrial Application The Coriolis Measuring Principle: A Direct Approach to Mass Flow The Coriolis mass...

An Engineering Analysis of Flowmeter Accuracy: Principles, Performance, and Application

An Engineering Analysis of Flowmeter Accuracy: Principles, Performance, and Application Deconstructing Flowmeter Accuracy: A Metrological Framework The selection of a flowmeter for any industrial...

Ultrasonic vs Thermal mass flowmeter : Flare flow measurement comparison

Flare Gas Flow Metering: Ultrasonic vs. Thermal Mass Flare Gas Flow Metering Systems A Comprehensive Analysis of Ultrasonic vs. Thermal Mass Technologies 1. The Challenge of Flare Gas Measurement...

Thermal Mass flowmeter : Top 50 Question and Answers to know every Instrument Engineer

Thermal Mass Flowmeter: Top 50 Interview Q&A (Full Sheet) Thermal Mass Flowmeter Top 50 Interview Questions & Comprehensive Answers This sheet is designed for quick review of core principles...

Ultrasonic Flow Metering: Principles, Applications, and Selection Criteria

Ultrasonic Flow Metering: Principles, Applications, and Selection Criteria Executive Summary This report provides a comprehensive and in-depth analysis of ultrasonic flow meters, a class of...

Flow meter selection Chart

Infographic: How to Choose the Right Flow Meter The Engineer’s Guide to Flow Measurement Choosing the right flow meter is critical for efficiency, safety, and profitability. This guide...

A Interactive Guide for Instrument Engineer on Reviewing Orifice Plate Sizing Calculations

Interactive SPA: EPC Guide to Orifice Plate Sizing Review 5-Step EPC Guide to Orifice Plate Sizing Review An interactive guide to ensure flow measurement accuracy and prevent costly errors by...

Section Title

O₂, Moisture, and H₂S Analyzer interview questions

Analyzer Interview Questions: O₂, Moisture & H₂S Analyzer Interview Masterclass O₂ Oxygen | Moisture | H₂S Hydrogen Sulfide Oxygen (O₂) Moisture H₂S General & Sampling Oxygen (O₂) Analyzers...

Continuous Emission Monitoring System (CEMS) : Top 50 Question and Answers

Top 50 CEMS Interview Questions Top 50 CEMS (SOx/NOx/CO/Opacity) Interview Questions & Answers Part 1: CEMS Fundamentals 1. What is a Continuous Emission Monitoring System (CEMS)? A CEMS is a...

API RP 555 : Process Analyzer : Top 50 Quiz

API RP 555 Process Analyzer Quiz API RP 555 Process Analyzer Quiz Top 50 Best Practices and Examples Submit Quiz Reset Quiz...

LNG and Refinery Analyzers

Interactive Report: Process Analyzers in LNG Facilities Process Analyzers in Modern LNG Facilities An interactive guide to the critical analytical instrumentation in LNG production. Explore the LNG...

Refinery Analyzers Explained: From Crude to Blending

Comprehensive Refinery Process Analyzer Guide Refinery Process Analyzers Overview Refinery Flow Technologies Implementation Future Trends The Strategic Role of Process Analytical Technology (PAT) This...

Top 30 MCQs: Sample Conditioning Systems for Analazyers Quiz

Top 30 MCQs: Sample Conditioning Systems for Analazyers Quiz Sample Conditioning Systems (SCS) Quiz Test Your Knowledge on Analyzer Sample Systems Submit Quiz Reset © 2025 Analyzer Systems...

Top 50 MCQs: pH, Conductivity & TOC Analyzers Quiz

Top 50 MCQs: pH, Conductivity & TOC Analyzers Quiz pH, Conductivity & TOC Analyzers Quiz Test Your Knowledge on Water Quality Analyzers Part 1: pH Analyzers Part 2: Conductivity Analyzers...

Gas Chromatography (GC) – 50 Most Common Interview Questions with Answers

Gas Chromatography (GC) – 50 Common Interview Questions Gas Chromatography (GC) 50 Most Common Interview Questions & Answers © 2025 Instrunexus. All Rights Reserved...