Most Recent Exam Pattern & Syllabus for IOCL 2023 Recruitment for 1720 Posts

Apply Now for Technician & Trade Apprenticeships at IOCL’s Apprentice 2023 Recruitment. For recruitment latest notifications Click here. As of November 20th, hopefuls may still apply. For the position of IOCL Trade Apprentice & Technician across many disciplines, Indian Oil Corporation Limited has posted an official notice. The applications for IOCL Apprentice will be accepted from 21st Oct 2023, until 20th Nov 2023. There are 1720 posts available in all. To prepare for the exam aspirants should briefly learn about the IOCL syllabus and exam pattern. View the requirements, the hiring procedure, the IOCL syllabus and exam pattern, and further information about the Apprentice post below.

The IOCL has activated the registration link as of 21st Oct 2023.  Aspirants may apply until 20th Nov 2023. IOCL has announced the recruitment of 1720 Apprentices. These openings will be for Trade Apprentices (Non-Technical and technical) and Technicians at the various Indian IOCL refinery facilities. In addition to multiple technical cadres including Accountant, DEO, Secretarial Assistant, etc., this IOCL Apprentice Recruitment will be conducted for a variety of Engineering disciplines. Continue reading for information and the most recent news about IOCL’s recruitment of technicians & trade apprentices.

  • Online registrations will be accepted from 21st Oct 2023 to 20th Nov 2023.
  • The candidate must be between the ages of eighteen and twenty-four. Additionally, take notice that under the IOCL 2023 Apprentice recruiting 31st Oct 2023, will be the reference date for calculating age.
  • The written test will serve as the foundation for choosing the candidates. Those who pass the written test will be contacted to get verification.
  • The anticipated date for the IOCL 2023 Apprentice test is 3rd Dec 2023

IOCL 2023 Apprentice Syllabus

Access the table below to obtain the PDF version of the IOCL Northern Region Apprentice Syllabus 2023. For better preparation, aspirants may need to make a note of the subjects after downloading the IOCL Apprentice Syllabus 2023.

The IOCL Trade Apprentice curriculum details for 2023 are provided below. An essential component of each competitive test is the curriculum. To succeed, candidates need to have a solid comprehension of the curriculum. A candidate can have a better understanding of the themes and the format by familiarising themselves with the syllabus. Please refer to the shared curriculum for each department in the tabular style below.

Subject Covered Topics Included
General Knowledge Constitution




Art & Culture


Current Affairs

Awards & Honours


Famous Personalities

Science & Technology

State, Countries, & Capitals

Famous Books, Personalities & Authors

English Synonyms & Antonyms


Phrases & Idioms

Correction/ Error Detection

Phrase/ Word Replacement

Sentence Rearrangement

Reading Comprehension


Fill in the blanks

Subject-Verb Agreement




Passive  & Active Voice

Reasoning Non-verbal and verbal Reasoning

Alphanumeric Reasoning

Arithmetic Reasoning

Blood Relations

Data Sufficiency

Data Interpretation & Analysis

Analytical Reasoning

Decision Making


Visual Reasoning



Calendars & Clocks

General Aptitude HCF & LCM

Number system


Profit & Loss


Ratio & Proportion

Distance & Time

Compound & Simple Interest

Pipes and cisterns

Problems on ages

Allegation & Mixture

Time and work

Permutation and combination





cube & Square roots

Boats and streams

Indices & Surds

Electrical Digital  & Analog Electronics

Electromagnetic Theory

Control Systems

Electronics Devices

Electrical Machines

Utilization of Electrical Energy

Electrical Instrumentation

Network Analysis

Power System Analysis & Control

Power Electronics & Drives

Switchgear and Protection

Power System Protection


Electronics and Instrumentation Optical, Analytical, and Biomedical Instrumentation

Process Control & Control Systems

Digital Electronics

Analog Electronics


Measurement Systems & Basics of Circuits

Mechanical Measurement, Transducers, and Industrial Instrumentation

Systems, Signals, and Communications

Electronic & Electrical Measurements

Chemical Engineering Molecules & Atoms



Reaction Dynamics

Spectroscopic Techniques

Organic Reactions


Transition Metal Chemistry

Electronics & Communication Digital & Analog Communications

Control Systems

Analog Circuits

Digital circuits


Electronic Devices

Engineering in Mathematics


Signals and Systems

Subject-specific Course Outline

The following is the subject-specific curriculum for each of the departments. Candidates can learn about the subjects covered in each of the individual subjects by looking through the table below.

Subject Covered Topics Included
Electrical Domain Concepts Electromagnetic Theory, Analysis of Networks and Circuits, Power System

Control Systems, Protection Devices, Power System Analysis, Electrical Energy

Utilization Machines, Switchgear, Digital & Analog Devices, Power Electronics,

Electronic Devices, etc.

Mechanical Domain Concepts Fluid Mechanics, Thermodynamics, Material Strength, Air Conditioning,

Heat Transfer, and Refrigeration mechanisms, Industrial Engineering,

Engineering Tools, Machine Design, Steam Generators, etc.

Instrumentation Domain Concepts Digital & Analog Electronics, Systems, & Signals and Electronic and

Electrical Measurements, Basic Communication Engineering, Control Systems,

Analytical & Optical Instrumentation, Industrial Instrumentation, Bio-Medical Instrumentation, etc.

IOCL 2023 Exam Schedule for 2023

To become familiar with the test, candidates need to go through the IOCL Test Pattern 2023. The exam format is the comprehensive outline of the question paper that contains all the important information about the test, such as the maximum score, the total number of questions, the time allotted for the exam, etc. The authorized Notification’s details are shown below, along with the IOCL Exam Format 2023. This is something that applicants may use to help them prepare for the test.

  • There will be 100 (MCQ) multiple-choice questions in the written exam.
  • The IOCL 2023 Written Test will consist of five sections: Numerical Aptitude, General English,  Trade Specific Subjects, Awareness/ General Knowledge, and Generic Reasoning and aptitude.
  • The right response to each question will receive one mark.
  • Answering the question paper will take one hour and twenty minutes.
  • In the IOCL 2023 Exam, negative marking is not allowed.
Name of the Subject Questions Total Scores Time
General Reasoning & Aptitude 25 100 90 mins
General Knowledge
General English
(Technical)  Concerned Subject 100


Top Learning Books for the IOCL 2023 Apprentice Test

As part of their preparation, the candidates may use a range of online research resources. They can also receive a variety of publications that are specifically created and prepared for the IOCL 2023 Apprentice test. The market is filled with several IOCL Apprentice books. Here is a short selection of some highly recommended books for your convenience.

Subject Name Name of the Book Writer/Publisher
Logic & Reasoning Logical Reasoning Arihant Publication
Current Affairs General Knowledge 2022 Arihant Publication
General English Word Power Made Easy Norman Lewis
English (General) Objective General English SP Bakshi/Arihant Publications
General Awareness General Awareness 2022 Arihant

Solution Key for the IOCL 2023 Apprentice Exam

The (IOCL) Indian Oil Corporation Limited authorized website will host the IOCL Apprentice Exam Solution Key for the Written Test as a PDF file. When the Corporation has finished the recruiting tests, the IOCL Apprentice Solution Key for the Written test for the several Apprentice disciplines will be made available.

All of the right answers for the written exam may be found in the IOCL 2023 Apprentice Solution Key PDF. Nonetheless, applicants have the option to contest the Solution Key and get their issues fixed if there are any inconsistencies.

A few days following the release of the IOCL Apprentice Exam Solution Key, aspirants who are dissatisfied with the key may contest it by submitting an application or representation accompanied by written evidence and solutions supporting their position.

How will the IOCL Apprentice Exam Marks Be Calculated?

The official IOCL Apprentice Solution Key can be used by applicants to compute their test scores, but only if they are familiar with the format that the Corporation uses for exams. Use the following methods to determine your IOCL Technician Apprentice test score:

  • Evaluate each of your responses against the IOCL Technician Apprentice Solution key.
  • For every correct answer, you will receive one point more on your score.
  • The Corporation has not yet disclosed any negative marks for the IOCL Technician Apprentice test.
  • If you choose not to respond to a question, your score does not need to be changed.
  • After answering every question, add up your points.

How Do I Get Ready for the IOCL 2023 Exam?

To properly prepare for the IOCL 2023 Exam, applicants can refer to the preparation guidelines provided below. These pointers will assist you in passing the test with a high grade.

  • Aspirants must first comprehend the IOCL Exam Format 2023 and Syllabus.
  • Create a successful preparation schedule and adhere to it.
  • Allocate adequate time to each session and thoroughly rehearse all of the questions.
  • Solve the prior year’s question papers to ascertain the section weighting and degree of difficulty.
  • Adhere to the pertinent study materials.
  • Give each section a thorough revision.
  • Take the practice exams to assess your level of readiness.

Frequently Asked Questions (FAQs)

Are students in the reserved category getting a break on the IOCL Technician Apprentice Cut-Off scores?

Students who fall into specific categories, such as PWD, OBC, SC/ST, or other restricted groups, are given a break in the qualifying cut-off scores.

Which papers do I need to bring with me to the IOCL 2023 Apprentice Exam?

A printed copy of the IOCL Apprentice Hall Card and any other valid form of identification, such as a driver’s license, passport, Aadhar card, or voter ID card, is required to be carried.

Do you need to utilize the most recent IOCL Apprentice learning book editions?

It is advised that you prepare using the most recent IOCL Apprentice learning book versions to ensure you don’t miss any of the topics that have been changed in the most recent syllabus.

Does accessing the IOCL Apprentice Final Result require logging into the portal?

A merit list including the results will be made public on the authorized website.

Are all applicants using the same IOCL 2023 Apprentice qualifying scores?

Every category (SC/ST, UR, PwD, OBC, etc.) has a different set of qualifying scores for the IOCL Apprenticeship.