The  Railway Recruitment Board (RRB) conducts the Junior Engineer (JE) Exam to recruit candidates for technical posts in Indian Railways.

The exam is held in two stages—CBT 1 and CBT 2—and understanding the detailed syllabus and exam pattern is very important for scoring well.

The RRB JE syllabus covers subjects like Mathematics, Reasoning, General Awareness, General Science, and core technical topics based on engineering streams.

With lakhs of candidates applying every year, knowing what to study helps candidates prepare in the right direction and boost their chances of selection.

RRB JE Exam Pattern

Here’s how the exam is structured:

In CBT-2, most of the questions come from a technical section. 

Minimum Passing Marks

• For general / unreserved category: 40% in both CBT 1 and CBT 2. 
• For reserved categories (OBC, SC, ST): there is relaxation in minimum required marks. 
• PwBD (Persons with Benchmark Disabilities) candidates may also get additional relaxation in passing marks. 

Why This Matters

• CBT-1 is qualifying in nature. Its main purpose is to filter candidates; the final merit is based on CBT-2. 
• The heavy weight of technical ability in CBT-2 means engineering candidates must focus more on their discipline-specific topics.

RRB JE Syllabus 2025 in Details

RRB JE recruitment is conducted in two computer-based exams:

• CBT-1 – Screening stage
• CBT-2 – Merit-deciding stage

Below is the complete and detailed syllabus for both exams.

RRB JE Syllabus 2025: CBT-1 (100 Marks)

This exam has 4 subjects:

1. Mathematics (30 Marks)

• Number System
• BODMAS
• Decimals & Fractions
• LCM, HCF
• Ratio & Proportion
• Percentages
• Mensuration (2D & 3D)
• Time & Work
• Time & Distance
• Simple Interest & Compound Interest
• Profit & Loss
• Algebra (polynomials, linear equations)
• Geometry & Trigonometry basics
• Statistics (mean, median, mode)
• Square roots & Surds
• Age problems
• Pipes & Cisterns
• Boats & Streams
• Simple linear graphs

2. General Intelligence & Reasoning (25 Marks)

• Analogies
• Classification
• Coding–Decoding
• Syllogisms
• Venn Diagrams
• Puzzle Solving
• Word Building & Number Series
• Mathematical Reasoning
• Statement–Assumption
• Statement–Conclusion
• Directions
• Blood Relations
• Data Interpretation (simple)
• Seating Arrangement (basic level)
• Decision Making
• Analytical Reasoning

3. General Awareness (15 Marks)

• Current Affairs (National & International)
• Indian Economy
• Indian Geography
• Indian Polity & Constitution
• History & Culture of India
• Sports
• Awards & Books
• Science & Technology
• Environmental Issues
• Railway Budget (Basic)
• Indian Railways Facts

4. General Science (30 Marks)

Syllabus of Class 10 level:

• Physics: Motion, Work & Energy, Electricity, Light, Heat, Magnetism
• Chemistry: Matter, Chemical Reactions, Acids/Bases/Salts, Metals & Non-metals, Carbon compounds
• Biology: Cell, Human Body Systems, Food & Nutrition, Reproduction, Plant Biology

RRB JE Syllabus 2025: CBT-2 (150 Marks)

CBT-2 contains 5 sections:

1. General Awareness (15 Marks)

Topics same as CBT-1 but deeper coverage:

• Indian Economy
• Budget & Railway Budget
• Five-Year Plans
• Important Government Schemes
• Science & Tech Developments
• Sports & Awards
• Important National/International Events

2. Physics & Chemistry (15 Marks)

(10+2 level)

Physics

• Motion, Force, Gravitation
• Work, Energy, Power
• Electricity & Magnetism
• Light (Reflection–Refraction)
• Heat & Thermodynamics
• Waves & Sound
• Units & Measurements

Chemistry

• Atomic Structure
• Periodic Table
• Chemical Bonding
• Acids, Bases, Salts
• Organic Chemistry basics
• Metals & Non-metals
• Chemical Reactions & Equations

3. Basics of Computers & Applications (10 Marks)

• Computer Organization
• Operating Systems
• MS Office (Word, Excel, PowerPoint)
• Internet, Networks, Email
• Input/Output Devices
• Memory Types
• Basics of Programming Languages
• Cyber Security & Digital Payments

4. Environment & Pollution Control (10 Marks)

• Basics of Environment
• Ecosystems & Biodiversity
• Air/Water/Noise Pollution
• Soil Pollution & Waste Management
• Climate Change
• Environmental Laws in India
• Pollution Control Measures
• Renewable Energy

5. Technical Abilities (100 Marks)

This is the most important section and depends on the candidate’s engineering branch.
Detailed syllabus for major branches:

A. Civil Engineering (CE)

• Building Materials
• Strength of Materials
• Structural Engineering
• Construction Technology
• Surveying
• Soil Mechanics
• Hydraulics & Fluid Mechanics
• Concrete Technology
• Water Supply Engineering
• Sanitation & Waste Water Engineering
• Transportation Engineering
• Estimation & Costing
• Irrigation Engineering
• Railway Engineering Basics

B. Mechanical Engineering (ME)

• Theory of Machines
• Thermodynamics & Heat Engines
• Strength of Materials
• Fluid Mechanics & Hydraulic Machines
• Production Engineering
• Machine Design
• Engineering Materials
• Welding, Foundry, Casting
• Refrigeration & Air Conditioning
• Industrial Engineering
• Automobile Engineering basics

C. Electrical Engineering (EE)

• Basic Electrical Engineering
• Circuit Theory
• Electrical Machines
• Power Systems
• Measurement & Instrumentation
• Control Systems
• Electrical & Electronic Devices
• Power Electronics
• Utilization of Electrical Energy
• Transformers
• Transmission & Distribution

D. Electronics & Communication (ECE)

• Analog & Digital Electronics
• Electronic Devices
• Signals & Systems
• Microprocessors
• Communication Systems
• Network Theory
• Measurements & Instruments
• Industrial Electronics
• Computer Hardware Basics

E. Computer Science / IT

• Computer Architecture
• Data Structures
• Programming (C, C++, Java basics)
• Operating Systems
• DBMS & SQL
• Networks & Internet
• Software Engineering
• Algorithms basics