The exam pattern and syllabus for the post of Jr. Engineering Assistant in IOCL or Indian Oil Corporation Limited are as follows:

The IOCL Jr Engineering Assistant written exam consists of objective type multiple choice questions from various subjects. The exam consists of 120 questions for 100 marks.

S.NO Written Test Subject Name

1. Objective Type Concerned Subject

2. Objective Type General Subject


IOCL Selection Procedure

Applicants are selected on the following tests:

• Written Examination.
• Trade Test.
• Personal Interview.


IOCL Exam Engineering Assistant Syllabus

IOCL JEA Electrical Syllabus
Electromagnetic Theory.
Analog and Digital Electronics.
Electronics Devices.
Control Systems.
Electrical Instrumentation.
Power System Protection.
Utilization of Electrical Energy.
Power Systems.
Network Analysis.
Electrical Machines.
Power System Analysis & Control.
Power Electronics & Drives.
Switch Gear and Protection etc.

IOCL Jr Engineering Asst Mechanical Syllabus
Manufacturing Technology.
Heat Engines.
Fluid Mechanics.
Thermodynamics.
Automobile Engineering.
Theory of Machines.
The Strength of Materials.
Hydraulics.
Structural Engineering.
Industrial Engineering & Management etc.

IOCL JEA Instrumentation Engineering Syllabus
Digital Electronics.
Control Systems and Process Control.
Analog Electronics.
Signals, Systems, and Communications.
Basics of Circuits and Measurement Systems.
Analytical, Optical and Biomedical Instrumentation.
Transducers, Mechanical Measurement and Industrial Instrumentation.
Electrical and Electronic Measurements.

IOCL Syllabus – Reasoning
Syllogistic Reasoning.
Decision Making.
Problem Solving.
Visual Memory.
Statement Conclusion.
Number Series.
Non-Verbal Series.
Coding-Decoding.
Arrangements.
Analogies.
Number Ranking.
Directions.
Alphabet Series.
Arithmetical Reasoning.
Clocks & Calendars.
Cubes and Dice.
Blood Relations.
Mirror Images.
Embedded Figures etc.

IOCL Gujarat Syllabus – Quantitative Aptitude
Number Systems.
Fractions Numbers.
Whole Numbers.
Decimals.
Ratios and Proportions.
Fundamental Arithmetical Operations.
Percentages.
Interest.
Averages.
Discount.
Profit and Loss.
Mensuration.
Use of Tables & Graphs.
Ratio and Time.
Time and Distance.
Time and Work etc

IOCL JEA Syllabus – General English
Grammar.
Synonyms.
Antonyms.
Vocabulary.
Conclusion.
Comprehension.
Word Formation.
Error Correction.
Theme detection.
Fill in the Blanks.
Unseen Passages.
Idioms & Phrases.
Passage Completion.
Sentence Completion.
Subject-Verb Agreement.
Sentence Rearrangement.