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Senior Instrument Designer – Oil & Gas (10+ Years Experience) Location: Office-Based (Chennai) · Full-Time · Instrumentation Department Role Summary We are seeking an experienced Senior...
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...
SIL Loop Testing & IEC 61511 Compliance Report Comprehensive Research Report: SIL Loop Testing Procedures & IEC 61511 Compliance Functional Safety Management during Commissioning...
Analyzer Interview Questions: O₂, Moisture & H₂S Analyzer Interview Masterclass O₂ Oxygen | Moisture | H₂S Hydrogen Sulfide Oxygen (O₂) Moisture H₂S General & Sampling Oxygen (O₂) Analyzers...
Click here to Donate Orifice Plate vs. Restriction Orifice: A Comprehensive Guide InstrunexusInsights Home Orifice Plates Restriction Orifices Comparison Applications Orifice Plate vs. Restriction...
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 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 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 Interactive Guide to Flammable Gas Detectors An overview of principles, technologies, and applications. Overview Core Concepts Technologies Comparison Applications Why Gas...
Question and Answer
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 Engineering: Top 50 Interview Q&A Instrumentation Working Principles Comprehensive Top 50 Interview Questions & Answers (No Equations) Pressure Measurement Q1 How does a...
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...
Interactive Overview: HIPPS HIPPS Overview Introduction Architecture Scenarios Comparison Applications IntroductionArchitectureScenariosComparisonApplications What is a HIPPS? This application...
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?...
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...
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...
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 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
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...
Universal Instrument Datasheet — Final Self-Verification Checklist Universal Instrument Datasheet — Final Self-Verification Checklist Applies to pressure/temperature/flow/level transmitters; control...
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)...
Interactive SIL Determination Application SIL Determination Hub Home Framework Calculator Lifecycle HomeFrameworkCalculatorLifecycle Understanding Functional Safety This application translates the...
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...
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 &...
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...
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...
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...
Back to Basics
Toxic Gas Detection Technologies – Full Guide GasTech Explorer Intro Gases Technologies Types...
Functional Safety
SIL Loop Testing & IEC 61511 Compliance Report Comprehensive Research Report: SIL Loop Testing...
Interactive Overview: HIPPS HIPPS Overview Introduction Architecture Scenarios Comparison...
Roadmap for Professionals to Get Certified Functional Safety Expert (CFSE / FSEng) Roadmap for...
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 Section 1: Executive Summary...
Interactive Fault Tree Analysis Explorer Fault Tree Analysis Explorer Fundamentals Methodology...
Interactive SIL Determination Application SIL Determination Hub Home Framework Calculator Lifecycle...
SIL Risk Graph Calculator · IEC 61508 (C/F/P/W) SIL Risk Graph Calculator IEC 61508 C/F/P/W method...
SIF PFDavg Calculator (1oo1, 1oo2, 2oo2, 2oo3) SIF PFDavg Calculator MVP Project Name SIF Tag Number...
Section Title
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...
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...
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 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 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 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) In the intricate world of process industries, Piping and Instrumentation Diagrams (P&IDs) serve as the definitive roadmap. These...
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...
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 Quiz ISO 5167 Flow Measurement Quiz Test your knowledge on Orifice, Venturi, and Nozzle...
Personal & Process Safety Quiz Personal & Process Safety Quiz LOTO, PTW, & Safe...
API RP 555 Process Analyzer Quiz API RP 555 Process Analyzer Quiz Top 50 Best Practices and Examples...
Top 50 Quiz: Fire & Gas Detectors Fire & Gas Detectors Quiz Test Your Knowledge on Best...
Hazardous Area Classification Quiz HAZLOC Classification Quiz (50 Qs) Test your knowledge on...
Top 50 Quiz: Junction Boxes & Cable Terminations Junction Boxes & Cable Terminations Quiz...
50-Question Maintenance Quiz Preventive vs. Corrective Maintenance Quiz Test your knowledge on best...
Hazardous Area Classification Quiz HAZARDOUS AREA CLASSIFICATIONS QUIZ Test your knowledge with...
C&PC Key Checks Quiz – 50 Questions Commissioning & Pre-Commissioning Quiz –...
Interview Preparation
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 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?” (Engineer vs. Technician) — InstruNexus IN How to Answer “Why Should We Hire You?” (Engineer vs. Technician) www.instrunexus.com • A practical, oil &...
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...
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 & Coordination with Multi-disciplinary Teams for Design Engineers (Oil & Gas) Teamwork & Coordination with Multi-disciplinary Teams for Design Engineers (Oil & Gas) From...
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...
What Are Behavioral Questions? Types, Examples & Winning Answers for Oil & Gas Design Engineers IN What Are Behavioral Questions? Types, Examples & Winning Answers (Oil & Gas...
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 Quiz ISO 5167 Flow Measurement Quiz Test your knowledge on Orifice, Venturi, and Nozzle design. Submit Quiz Reset...
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?...
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 Deconstructing Flowmeter Accuracy: A Metrological Framework The selection of a flowmeter for any industrial...
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 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 Executive Summary This report provides a comprehensive and in-depth analysis of ultrasonic flow meters, a class of...
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...
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
Analyzer Interview Questions: O₂, Moisture & H₂S Analyzer Interview Masterclass O₂ Oxygen | Moisture | H₂S Hydrogen Sulfide Oxygen (O₂) Moisture H₂S General & Sampling Oxygen (O₂) Analyzers...
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 Quiz API RP 555 Process Analyzer Quiz Top 50 Best Practices and Examples Submit Quiz Reset Quiz...
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...
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 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 pH, Conductivity & TOC Analyzers Quiz Test Your Knowledge on Water Quality Analyzers Part 1: pH Analyzers Part 2: Conductivity Analyzers...
Gas Chromatography (GC) – 50 Common Interview Questions Gas Chromatography (GC) 50 Most Common Interview Questions & Answers © 2025 Instrunexus. All Rights Reserved...