IOCL Junior Engineer Exam Guide 2026
IOCL Junior Engineer 2026 notification updates and complete exam guide. Check exam dates, vacancies, eligibility criteria, selection process, syllabus, and application details.
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📊 IOCL Junior Engineer 2025 – Overview
| Organization | Indian Oil Corporation Limited (IOCL) |
|---|---|
| Advertisement Number | IOCL/CO-HR/Rectt/2025/02 |
| Post Name | Junior Engineer (Diploma Engineer, Grade E0) |
| Number of Vacancies | 404 |
| Disciplines | Chemical, Electrical, Mechanical, Instrumentation |
| Job Location | Across India (IOCL refineries and units) |
| Online Application Start Date | 12th September 2025 |
| Last Date to Apply | 28th September 2025 |
| Eligibility | Three-year Diploma in relevant engineering discipline from a recognized institute |
| Age Limit | 18 to 26 years (relaxations applicable as per government rules) |
| Selection Process | Computer-Based Test (CBT) and further recruitment stages as per IOCL norms |
| Pay Scale | INR 30,000 – INR 1,20,000 |
| Official Website | www.iocl.com |
📊 Exam Information 2
| Discipline | Mock test link |
|---|---|
| Chemical Engineering | |
| Electrical Engineering | |
| Instrumentation Engineering | |
| Mechanical Engineering |
📊 Exam Information 3
| Discipline | Vacancies |
|---|---|
| Chemical | 280 |
| Electrical | 54 |
| Mechanical | 49 |
| Instrumentation | 21 |
| Total | 404 |
📊 Important Dates & Schedule
- Event
- Date
- Result Declaration
- To be notified
- IOCL Junior Engineer Exam Date
- 31st October 2025
- Last Date to Apply Online for IOCL JE 2025
- 28th September 2025
- IOCL Junior Engineer Admit Card Release Date
- 16th October 2025
- Start of Online Application for IOCL JE 2025
- 12th September 2025
📊 Important Dates & Schedule
- Category
- Application Fee (INR)
- General/OBC
- 400 + GST
- SC / ST / PwBD
- Exempted
📊 Salary & Pay Scale Details
- Variation
- Depends on place of posting, company performance, and individual appraisal
- Allowances
- Dearness Allowance (DA), House Rent Allowance (HRA) / Subsidized Housing, Conveyance, Medical Facilities, Leave Encashment, Gratuity, Provident Fund, Group Insurance, etc.
- Performance Pay
- Performance Related Pay (PRP) as per company policy
- Basic Pay (Starting)
- INR 30,000 per month
- IOCL Engineer Salary
- INR 30,000 to INR 1,20,000 per month
📊 Exam Pattern & Marking Scheme
| Section | No. of Questions |
|---|---|
| Discipline-Specific (Domain Knowledge) | 50 |
| Quantitative Aptitude | 20 |
| Logical Reasoning | 15 |
| English Language | 15 |
| Total Questions | 100 |
| Exam Duration | 150 minutes |
📊 Syllabus Table
| Topics | Key Points / Focus Areas |
|---|---|
| Process Calculations | Material & energy balance, stoichiometry, process flow calculations |
| Heat & Mass Transfer | Conduction, convection, radiation, distillation, absorption, extraction |
| Fluid Mechanics | Fluid properties, Bernoulli’s equation, flow measurement, pumps |
| Chemical Technology | Industrial processes, chemical reactions, unit operations |
| Instrumentation | Process instruments, measurement principles, control loops |
| Safety & Environment | Safety protocols, hazard management, environmental regulations |
📊 Syllabus Table
| Chapter | Topics |
|---|---|
| Electrical Machines | Transformers, motors, generators, efficiency calculations |
| Power Systems | Transmission lines, power flow, load distribution |
| Control Systems | Feedback systems, stability, controllers, signal analysis |
| Measurement & Instrumentation | Electrical measurements, transducers, meters |
| Circuit Theory | AC/DC circuits, network theorems, circuit analysis |
| Electrical Materials | Conductors, insulators, magnetic materials |
📊 Syllabus Table
| Topics | Key Points / Focus Areas |
|---|---|
| Thermodynamics | Laws of thermodynamics, cycles, engines, refrigeration |
| Fluid Mechanics | Fluid flow, viscosity, pumps, turbines |
| Strength of Materials | Stress-strain, bending, torsion, elasticity, beams |
| Manufacturing Processes | Casting, forming, machining, welding |
| Heat Transfer | Conduction, convection, radiation, heat exchangers |
| Theory of Machines | Kinematics, dynamics, gears, flywheels |
📊 Syllabus Table
| Topics | Key Points / Focus Areas |
|---|---|
| Process Control | Control loops, PID controllers, stability, tuning |
| Measurement Techniques | Sensors, transducers, calibration |
| Control Systems | Feedback, open/closed-loop systems, controllers |
| Sensors & Transducers | Temperature, pressure, flow sensors |
| Electrical & Electronics Basics | Circuits, semiconductors, signal processing |
📊 Exam Pattern & Marking Scheme
| Section | Topics / Focus Areas |
|---|---|
| Quantitative Aptitude | Algebra, Arithmetic, Data Interpretation, Geometry |
| Logical Reasoning | Analytical Reasoning, Puzzles, Series, Syllogisms |
| General Awareness | Current Affairs, Indian Economy, Science & Technology |
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📌 Our Topics Covered
- IOCL Junior Engineer Eligibility Criteria & Age Limit 2026
- IOCL Junior Engineer Exam Pattern & Selection Process
- IOCL Junior Engineer Educational Qualification & Attempts
- IOCL Junior Engineer Salary Structure & Pay Scale
- IOCL Junior Engineer Syllabus & Preparation Guide
❓ Frequently Asked Questions
Q1.What is the last date to apply for IOCL Junior Engineer Recruitment 2025?
The last date to submit the IOCL Junior Engineer application form 2025 is 28th September 2025. Candidates must complete the process before the deadline.
Q2.What qualification is required for IOCL Junior Engineer Recruitment 2025?
Applicants should hold a three-year diploma in Chemical, Electrical, Mechanical, or Instrumentation Engineering from a recognized institute. Recent diploma pass outs are also eligible.
Q3.What is the age limit for IOCL Junior Engineer 2025?
The minimum age is 18 years, and the maximum age is 26 years as of 1st July 2025. Age relaxations are applicable for reserved categories under government rules.
Q4.What is the application fee for IOCL Junior Engineer Recruitment 2025?
General, OBC-NCL, and EWS candidates must pay INR 400 + GST, while SC, ST, and PwBD candidates are exempted from the fee.
Q5.What is the selection process for IOCL Junior Engineer 2025?
The selection will be based on a Computer-Based Test (CBT), followed by Group Discussion (GD), Group Task (GT), Personal Interview (PI), document verification, and a medical fitness test.
Q6.When will the IOCL Junior Engineer Admit Card 2025 be released?
The admit card will be released on the official IOCL website around 16th October 2025. Candidates must download it using their login credentials.
Q7.What is the salary for IOCL Junior Engineer Recruitment 2025?
Selected candidates will get a salary in the pay scale of INR 30,000 to INR 1,20,000 per month along with allowances like HRA, DA, medical facilities, performance-related pay, and retirement benefits.
Q8.Where can I check the IOCL Junior Engineer Result 2025?
The result will be available on the official IOCL portal. Candidates can download their IOCL Junior Engineer merit list 2025 after logging in with registration details.
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