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IOCL Engineer Syllabus 2026, Exam Pattern

Complete preparation hub for Iocl Engineer 2026 recruitment examination

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📅 Updated On 2026-08-29✨ Update By Sandeep Pandey🌐 Hindi & English

Practice with exam-pattern mock tests for Iocl Engineer 2026.

Iocl Engineer 2026 Free Mock Test Practice

1
IOCL Engineer/Officer (Grade A) Electrical Exam - Hindi100 questions • 150 mins • 100 marks
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2
IOCL Engineer/Officer (Grade A) Electrical Exam - English100 questions • 150 mins • 100 marks
Free Test →
3
IOCL Engineer/Officer (Grade A) (Chemical) Exam - Hindi100 questions • 150 mins • 100 marks
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4
IOCL Engineer/Officer (Grade A) (Chemical) Exam - English100 questions • 150 mins • 100 marks
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5
IOCL Engineer/Officer (Grade A) (Instrumentation) Exam - Hindi100 questions • 150 mins • 100 marks
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6
IOCL Engineer/Officer (Grade A) Instrumentation Exam - English100 questions • 150 mins • 100 marks
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Free Important Questions

Iocl Engineer 2026 Exam Free Online Question Bank

1
IOCL Engineer/Officer (Grade A) Electrical Exam - Hindi100 questions
Free Questions →
2
IOCL Engineer/Officer (Grade A) Electrical Exam - English100 questions
Free Questions →
3
IOCL Engineer/Officer (Grade A) (Chemical) Exam - Hindi100 questions
Free Questions →
4
IOCL Engineer/Officer (Grade A) (Chemical) Exam - English100 questions
Free Questions →
5
IOCL Engineer/Officer (Grade A) (Instrumentation) Exam - Hindi100 questions
Free Questions →
6
IOCL Engineer/Officer (Grade A) Instrumentation Exam - English100 questions
Free Questions →
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IOCL Engineer Syllabus 2026, Exam Pattern

IOCL Engineer Syllabus 2026, Exam Pattern, Exam Date 2026

Detail Information about IOCL has published notification 2026 for the recruitment of Engineer/Officer (Grade A) 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.

IOCL Engineer/Officer (Grade A) Syllabus 2026 - Overview
 
Organization Name Indian Oil Corporation Limited (IOCL)
Post Names Engineers / Officers (Grade – A)
Disciplines Chemical, Electrical, Instrumentation
Total Vacancies 126
Category Syllabus and Exam Pattern
Exam Date 2026 24th September 2026 (Tentative)
Salary / Pay Scale Rs.50,000 – Rs.1,60,000 per month
Job Location All India
Offical Website iocl.com

IOCL Engineer/Officer (Grade A) Syllabus 2026

Domain Knowledge :

Chemical :

1. Engineering Mathematics
2. Process Calculation & Thermodynamics
3. Fluid Mechanics & Mechanical Operations
4. Chemical Reaction Engineering
5. Instrumentation & Process Control
6. Plant Design and Economics
7. Heat Transfer
8. Mass Transfer
9. Chemical Technology

Electrical :

1. Engineering Mathematics
2. Electrical Machines
3. Power Systems
4. Control Systems
5. Electric circuits
6. Electromagnetic Fields
7. Signals and Systems
8. Electrical and Electronic Measurements
9. Analog and Digital Electronics
10. Power Electronics

Instrumentation : 

1. Engineering Mathematics
2. Control Systems
3. Analog Electronics
4. Digital Electronics
5. Electricity and Magnetism
6. Electrical Circuits and Machines
7. Signals and Systems
8. Measurements
9. Sensors and Industrial Instrumentation
10.Communication and Optical Instrumentation

General Aptitude : 

Verbal Ability of English Language :

1. Basic English grammar: tenses, prepositions, articles, adjectives, conjunctions, verb-noun agreement, and other parts of speech
2. Basic vocabulary: words, idioms, and phrases in context,
3. Reading and comprehension,
4. Narrative sequencing.

Quantitative Aptitude :-

1. Data interpretation: data graphs (bar graphs, pie charts, and other graphs representing data), 2. 2- and 3-dimensional plots, maps, and tables
3. Numerical computation and estimation: ratios, percentages, powers, exponents and logarithms, permutations and combinations, and series
4. Mensuration and geometry Elementary statistics and probability

Logical Reasoning :

1. Logic: deduction and induction, Analogy, Numerical relations and reasoning.
2. Transformation of shapes: translation, rotation, scaling, mirroring, assembling, and grouping paper folding, cutting, and patterns in 2 and
3 dimensions.

IOCL Engineer/Officer (Grade A) Exam Pattern 2026

Duration  : 150 Minutes

Negative Marking : 0.25

 
Section Subject No.of Question Marks
Section A Domain Knowledge 50 50
Section B General Aptitude    
Quantitative Aptitude 20 20
Logical Reasoning 15 15
Verbal Ability of English Language 15 15
  Total 100 100

Exam Date 2026 : 24th September 2026

Starting Date of Application Form : 14th August 2026

Last Date of Application Form : 03rd September 2026

Total Post : 126
FAQs

Iocl Engineer 2026 Exam Syllabus Frequently Asked Questions (FAQ's)

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In this article Page, we have provided the required syllabus of the IOCL Engineer exam.
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IOCL Engineer exam is not tough but it depends on your preparation. The candidates find the Subject not challenging. The dedicated preparation in the right direction will undoubtedly take you towards the goal.
The candidates must be well versed and acquainted with the syllabus and the exam pattern. Select the areas where improvement is required and schedule your preparation accordingly. To ace this exam, the applicants ought to maintain speed with high accuracy. Practicing previous years question papers will help you understand the exam pattern and the level of difficulty of the exam. You need to hone your strengths and improve upon your weaknesses. Toppersexam.com will aid you through the preparation and drive you to success. At Toppersexam.com, you can practice a complete set of test series along with a free IOCL Engineer mock test designed by our expert faculty.
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The IOCL Engineer Exam pattern includes details like the number of sections, total questions, marks distribution, and exam duration. Toppersexam provides a comprehensive guide on exam format, marking scheme, and question types.
Yes, the majority of questions in IOCL Engineer Exam are MCQs. Toppersexam provides practice MCQs with answers to help candidates understand the question pattern and improve accuracy.
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Yes, exam patterns can change over time. Toppersexam provides updated information on the latest exam pattern, question types, and section-wise changes.
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