HRRL Recruitment 2025 Syllabus, Exam Pattern, Selection, Tips

HRRL Recruitment 2025 Syllabus – The Ultimate Preparation Guide: HPCL Rajasthan Refinery Limited (HRRL) has announced its recruitment notification for 2025 across multiple positions such as Junior Executive, Engineer, Officer, Senior Engineer, and even Senior Manager. The first crucial hurdle is the Computer-Based Test (CBT), and knowing the HRRL syllabus in full can dramatically increase your chances of success.

HRRL Recruitment 2025 Syllabus

Getting clarity on the exam pattern is essential before you start studying. Key details are:

• Mode: Computer-Based Test (online multiple-choice format)
• Total Questions: 100
• Total Marks: 100
• Duration: 120 minutes
• Negative Marking: None
• Sections: Technical (60Q), General Aptitude (20Q), English (10Q), General Knowledge (10Q)
• Next Stage: Interview or Skill Test

HRRL Exam Pattern Overview

This guide will give you a clear understanding of each section and subject-wise syllabus for major disciplines like Chemical, Mechanical, Electrical, Instrumentation, Civil, and non-engineering streams like HR, Finance, and Legal.

Technical Syllabus Breakdown

The technical section (60 marks) varies depending on your applied discipline. Let’s break it down.

Chemical Engineering

Topics to Cover:

• Reaction Engineering fundamentals (batch, CSTR, PFR)
• Equipment Design and Sizing (tanks, heat exchangers)
• Fluid Mechanics (viscous flow, pressure drop)
• Thermal Processes (distillation, evaporation)
• Mass Transfer (absorption, extraction)
• Heat Transfer (conduction, convection)
• Plant Equipment (pipes, valves, pumps)
• Process Dynamics & Instrumentation
• Mechanical Operation (crushing, grinding)
• Thermodynamics (laws, cycles, psychrometry)

Chemical Engineering Topic

Mechanical Engineering

Key Areas:

• Engineering Mechanics (forces, friction)
• Thermodynamics (IC engines, power cycles)
• Fluid Machinery (turbines, compressors)
• Machine Design (shafts, bearings)
• Heat Transfer
• Strength of Materials (stress-strain analysis)
• Refrigeration & Air Conditioning
• Mechanics of Solids and Fluids

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Mechanical Engineering Topics

Electrical Engineering

Core Syllabus:

• Electrical Machines (generators, motors)
• Control Systems (feedback, stability)
• Power Electronics (inverters, converters)
• Power Systems (fault analysis, distribution)
• Circuit Theory
• Measurements & Instrumentation
• Signals and Systems

Electrical Engineering Topics

Instrumentation Engineering

Outline:

• Sensor and Transducer Principles
• Digital & Analog Electronics
• Signal Conditioning
• Instrumentation Systems
• Industrial Control and Automation
• Measurement Techniques
• Data Acquisition Systems

Instrumentation Topics

Civil Engineering

Main Areas:

• Structural Engineering
• RCC and Steel Design
• Soil Mechanics & Foundations
• Concrete Technology
• Surveying & Transportation Engineering
• Environmental Studies

Civil Engineering Topics

Officer Streams (HR, Finance, Legal)

HR Syllabus:

• Employee Lifecycles
• Performance Management
• Labour Laws
• Compensation
• Industrial Relations

Finance Syllabus:

• Accounting Principles
• Cost Accounting
• Corporate Finance
• Taxation
• Auditing

Legal Syllabus:

• Contract Law
• Company Law
• Environmental Law
• Labour Regulations

Officer Posts Topics

3. General Aptitude Syllabus – Detailed View

Although the technical section takes the spotlight, aptitude is important and relatively easier to score quickly.

Topics Include:

• Series completion (number, letter)
• Arithmetic (time & work, percentages)
• Data Interpretation (charts, tables)
• Statistics and Data sufficiency
• Geometry and algebra

Aptitude Topics

4. English Language Syllabus – Essentials

A small yet crucial section that can help push your overall score.

Main Subtopics:

• Reading comprehension
• Grammar accuracy
• Sentence structure and corrections
• Vocabulary (synonyms, antonyms)
• Written usage (fill in, idioms)

English Topics

5. General Knowledge & Current Affairs

Scoring in GK doesn’t require engineering knowledge, but staying aware of the world helps you shine.

Topics for GK:

• Recent developments in India & world
• Energy, oil and gas projects
• Environmental policies
• Achievements in science & technology
• National awards, sports events
• Government schemes

Table 10: GK Topics

Putting it Together: Study Plan

A structured study plan can help you balance all sections and ensure steady progress.

Weekly Structure:

Include Sundays for full mock tests and revision.

Best Books and Resources for HRRL Recruitment

Choose resources that are standard, concise, and aligned with the syllabus.

Recommended Books

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Preparation Strategy and Tips

1. Cover Technical Subjects First: Since they hold 60% weight, they deserve most focus.
2. Parallel Practice: Allocate time for aptitude and language daily.
3. Mock Tests: Take at least one full test each week to improve timing and tracking.
4. Short Notes: Maintain formula sheets and vocabulary lists.
5. Revision Routine: Revise weekly; keep latest GK notes updated monthly.
6. Group Learning: If possible, study with peers for doubt resolution.
7. Stay Healthy: Regular breaks, hydration, and sufficient sleep are essential.

Frequently Asked Questions (FAQs) at HRRL syllabus

Q1. Is there negative marking in HRRL exam?
A1. No, past patterns suggest no negative marking. However check latest notification first.

Q2. Should I study mechanical if I’m an instrumentation engineer?
A2. Focus on your core discipline. Skip unrelated mechanical portions but practice aptitude and GK.

Q3. How many mock tests to take?
A3. As many as possible, but aim for at least 8–10 full-length mocks before CBT.

Q4. What is the ideal time to apply?
A4. Within a few days of release. Applications close on 10 August 2025.

Official website – https://hrrl.in/Hrrl/current-openings.jsp