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IOCL JEA Free Mock Test
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IOCL JEA Syllabus 2026, Exam Pattern
IOCL JEA Syllabus 2026, Exam Pattern, Exam Date 2026
Detail Information about IOCL has published notification 2026 for the recruitment of JEA (Junior Engineering Assistant) vacancies. Those Candidates who are Interested to the following vacancy and completed all Eligibility Criteria can read the Notification & Apply Online. In this page we provide the Complete Syllabus of this Recruitment with Latest Update Exam Pattern and the Exam Date also.
1. Algebraic Equations
2. Comparison of Quantity
3. Data Sufficiency
4. Mixture and Alligation
5. Percentages
6. Number Series
7. Number System
8. Partnership
9. Simplification and Approximation
General Knowledge and Awareness :
1. Indian freedom struggle
2. Mughal Empire
3. Buddhism and Jainism
4. Budgeting Concepts
5. Science and Technology
6. Constitution Articles
7. Chief Ministers and Governors
8. Famous Sites in India
9. Indian towns on river banks
Technical Subject :-
Production :
Basics of Fertilizer Production :
1. Introduction to Fertilizer Production
2. Raw Materials Used in Fertilizer Production
3. Overview of Fertilizer Manufacturing Processes
Chemical Processes :
1. Ammonia Synthesis
2. Urea Production
3. Ammonium Nitrate Production
4. NPK (Nitrogen, Phosphorus, Potassium) Fertilizers
Unit Operations :
1. Distillation
2. Absorption
3. Filtration
4. Crystallization
5. Drying
Heat Transfer :
1. Principles of Heat Transfer
2. Heat Exchangers
3. Cooling Towers
4. Condensers
Mass Transfer :
1. Principles of Mass Transfer
2. Absorption and Stripping
3. Distillation and Extraction
4. Gas-Liquid Contactors
Fluid Mechanics :
1. Fluid Flow
2. Pressure Drop Calculations
3. Pumps and Compressors
4. Flow Measurement
Chemical Reaction Engineering :
1. Reaction Kinetics
2. Reactor Design
3. Catalysis
4. Process Optimization
Process Control :
1. Control Systems
2. Instrumentation
3. Automation in Production
4. Safety Systems
Quality Control and Assurance :
1. Quality Control Methods
2. Testing and Analysis
3. Standards and Specifications
4. Quality Assurance Practices
Maintenance of Production Equipment :
1. Preventive Maintenance
2. Troubleshooting
3. Equipment Calibration
4. Safety Practices in Maintenance
Safety and Environmental Engineering :
1. Safety Protocols
2. Hazard Analysis
3. Environmental Impact
4. Waste Management
Electrical :
1. Power Systems
2. Power System Analysis & Control
3. Electromagnetic Theory
4. Power Electronics & Drives
5. Electrical Machines
6. Electronics Devices
7. Power System Protection
8. Electrical Instrumentation
9. Control Systems
10. Network Analysis
11. Utilization of Electrical Energy
12. Analog and Digital Electronics
13. Switch Gear and Protection etc
Mechanical :
1. Hydraulics
2. Heat Engines
3. Structural Engineering
4. Fluid Mechanics
5. Thermodynamics
6. The Strength of Materials
7. Theory of Machines
8. Manufacturing Technology
9. Automobile Engineering
10. Industrial Engineering & Management etc
IOCL Junior Engineering Assistant Exam Pattern 2026
Duration : 120 Minutes
Exam Date 2026 : Notifed Soon
Starting Date of Application Form : Notified Soon
Last Date of Application Form : Notified Soon
IOCL JEA Syllabus 2026 - Overview
| Organization Name | India Oil Corporation Limited |
| Name of the Post | Junior Engineering Assistant-IV (Production) |
| No. of Posts | Notified Soon |
| Category | Syllabus and Exam Pattern |
| Selection Process | Written Test and a Skill/ Proficiency/ Physical Test (SPPT) |
| Official Website | iocl.com |
IOCL JEA Syllabus 2026
Numerical Ability :1. Algebraic Equations
2. Comparison of Quantity
3. Data Sufficiency
4. Mixture and Alligation
5. Percentages
6. Number Series
7. Number System
8. Partnership
9. Simplification and Approximation
General Knowledge and Awareness :
1. Indian freedom struggle
2. Mughal Empire
3. Buddhism and Jainism
4. Budgeting Concepts
5. Science and Technology
6. Constitution Articles
7. Chief Ministers and Governors
8. Famous Sites in India
9. Indian towns on river banks
Technical Subject :-
Production :
Basics of Fertilizer Production :
1. Introduction to Fertilizer Production
2. Raw Materials Used in Fertilizer Production
3. Overview of Fertilizer Manufacturing Processes
Chemical Processes :
1. Ammonia Synthesis
2. Urea Production
3. Ammonium Nitrate Production
4. NPK (Nitrogen, Phosphorus, Potassium) Fertilizers
Unit Operations :
1. Distillation
2. Absorption
3. Filtration
4. Crystallization
5. Drying
Heat Transfer :
1. Principles of Heat Transfer
2. Heat Exchangers
3. Cooling Towers
4. Condensers
Mass Transfer :
1. Principles of Mass Transfer
2. Absorption and Stripping
3. Distillation and Extraction
4. Gas-Liquid Contactors
Fluid Mechanics :
1. Fluid Flow
2. Pressure Drop Calculations
3. Pumps and Compressors
4. Flow Measurement
Chemical Reaction Engineering :
1. Reaction Kinetics
2. Reactor Design
3. Catalysis
4. Process Optimization
Process Control :
1. Control Systems
2. Instrumentation
3. Automation in Production
4. Safety Systems
Quality Control and Assurance :
1. Quality Control Methods
2. Testing and Analysis
3. Standards and Specifications
4. Quality Assurance Practices
Maintenance of Production Equipment :
1. Preventive Maintenance
2. Troubleshooting
3. Equipment Calibration
4. Safety Practices in Maintenance
Safety and Environmental Engineering :
1. Safety Protocols
2. Hazard Analysis
3. Environmental Impact
4. Waste Management
Electrical :
1. Power Systems
2. Power System Analysis & Control
3. Electromagnetic Theory
4. Power Electronics & Drives
5. Electrical Machines
6. Electronics Devices
7. Power System Protection
8. Electrical Instrumentation
9. Control Systems
10. Network Analysis
11. Utilization of Electrical Energy
12. Analog and Digital Electronics
13. Switch Gear and Protection etc
Mechanical :
1. Hydraulics
2. Heat Engines
3. Structural Engineering
4. Fluid Mechanics
5. Thermodynamics
6. The Strength of Materials
7. Theory of Machines
8. Manufacturing Technology
9. Automobile Engineering
10. Industrial Engineering & Management etc
IOCL Junior Engineering Assistant Exam Pattern 2026
Duration : 120 Minutes
| S.No. | Subject | No.of Question | Marks |
| 1. | Numerical Ability | 15 | 15 |
| 2. | General Awareness | 10 | 10 |
| 3. | Technical Subject | 75 | 75 |
| Total | 100 | 100 |
Exam Date 2026 : Notifed Soon
Starting Date of Application Form : Notified Soon
Last Date of Application Form : Notified Soon
IOCL JEA Exam Free Online Test Series
Crack IOCL JEA Mock Test for exam 2026 with the help of Online Test Series or Free Mock Test. Every Question Paper in IOCL JEA Exam has a designated weightage so do not miss out any Paper. Practice for IOCL Junior Engineering Assistant Mock Test and check your test scores.
IOCL JEA Exam Free Online Question Bank
IOCL JEA question answer with solutions are available in Hindi & English. Join MCQ, Important Questions, Question Bank, questions and answers for Free IOCL JEA exam preparation.
Combo Offers
IOCL JEA Combo Packages
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3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
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Combo Package
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3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
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Combo Package
IOCL JEA
Combo - 8 Electrical (Hindi)
1. Online Mock Test Series in Hindi = 20 Tests.
2. Question Bank - 2000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
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IOCL JEA
Combo - 9 Electrical (English)
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2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
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3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
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IOCL JEA
Combo - 10 Electrical (English)
1. Online Mock Test Series in English = 20 Tests.
2. Question Bank - 2000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.
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3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
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Combo Package
IOCL JEA
Combo - 11 Production (Hindi)
1. Online Mock Test Series in Hindi = 10 Tests.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
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3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
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Combo Package
IOCL JEA
Combo - 12 Production (English)
1. Online Mock Test Series in English = 10 Tests.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
5. 1000 (+) GK MCQ with Answer PDF Book in English.
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4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
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Combo Package
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Combo - 13 Mechanical (Hindi)
1. Online Mock Test Series in Hindi = 20 Tests.
2. Question Bank - 3000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
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4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
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1. Online Mock Test Series in English = 20 Tests.
2. Question Bank - 3000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
5. 1000 (+) GK MCQ with Answer PDF Book in English.
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4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
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Combo - 15 Electrical (Hindi)
1. Online Mock Test Series in Hindi = 20 Tests.
2. Question Bank - 3000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
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4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
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Combo - 16 Electrical (English)
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4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
5. 1000 (+) GK MCQ with Answer PDF Book in English.
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5. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
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5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
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5. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
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FAQs
Iocl Junior Engineering Assistant 2026 Free Mock Test Frequently Asked Questions (FAQ's)
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