RRB JE Important Topics List for the CBT 1 Exam 2026

Candidates who are preparing for the RRB JE exam should focus more on important topics to make their preparation strong and improve their performance. Giving attention to high-weightage subjects helps candidates score better and stay competitive among thousands of applicants. The selection process of the RRB JE exam has two stages: CBT 1 and CBT 2. Only those candidates who clear CBT 1 are allowed to appear for CBT 2.

RRB JE Important Topics List

The RRB JE 2026 exam is held on 19th, 20th and 25th February 2026, and candidates are now searching for the best strategies to improve their preparation and perform well in the exam. Going through the important topics of all subjects can be very helpful for aspirants, as it allows them to focus on what matters most and prepare in a smarter way. The RRB JE 2026 Syllabus covers five main sections: General Awareness, Physics and Chemistry, Basics of Computers and Applications, Basics of Environment and Pollution Control, and Technical Abilities. This is important for aspirants to clearly understand the most important topics and prepare them properly. A focused and well-planned preparation will increase confidence and help candidates achieve success in the upcoming exam.

Subject-Wise Important Topics for RRB JE 2026

The RRB JE is a national-level competitive exam conducted by the Railway Recruitment Boards to recruit Junior Engineers and other technical staff in different railway zones across India. Candidates who want to score well in this exam should carefully study the important topics and build a strong base for proper and organized preparation. To crack the RRB JE Exam 2026, every aspirant needs a clear and effective study plan that smartly covers the full syllabus. Understanding the important topics of all subjects will help candidates prepare better and increase their chances of success in the exam.

RRB JE 2026 Important Topics for Mathematics

The important topics for Mathematics are as follows:

• Number System
• Simplification
• Area and Volume
• Trigonometry
• Probability
• Statistics
• Ratio and Proportion
• Percentage
• Average
• Simple Interest and Compound Interest
• Profit and Loss
• Time and Work

RRB JE 2026 Important Topics for General Intelligence and Reasoning

The important topics for General Intelligence & Reasoning are as follows:

• Coding-Decoding
• Odd One Out
• Syllogism
• Decision Making
• Data Sufficiency
• Non-Verbal Reasoning
• Direction Sense
• Blood Relation
• Seating Arrangement
• Arithmetical Reasoning
• Statement and Conclusion

RRB JE 2026 Important Topics for General Awareness

The important topics for General Awareness are as follows:

• Current Affairs
• History Of India
• Geography Of India and the World
• Indian Economy and Reports
• Books and Authors
• Important Appointments
• Science and Technology
• Indian Constitution
• Arts and Culture
• Famous Personalities
• Government Schemes
• Awards and Honors
• Computer Knowledge

RRB JE 2026 Important Topics for General Science

The important topics for General Science are as follows:

• Chemical Reactions and Equations
• Acids, Bases and Salts
• Metals and Non-Metals
• Human Eye
• Electricity
• Carbon and its Compounds
• Life Processes
• Control and Coordination
• Reproduction System
• Heredity
• Light – Reflection and Refraction
• Magnetic Effect Of Electric Current
• Our Environment

RRB JE 2026 Important Topics for Physics and Chemistry

The key topics include Physics and Chemistry sections are as follows:

Physics

• Mechanics: Motion, Newton’s laws, work, energy, power, simple machines, fluid mechanics (pressure, Archimedes’ principle).
• Heat and Thermodynamics: Temperature scales, heat transfer (conduction, convection, radiation), laws of thermodynamics, thermal expansion.
• Optics and Sound: Reflection, refraction, lenses and mirrors, properties of sound waves (echo, Doppler effect).
• Measurements and Units: Types of errors in measurements and dimensions.

Chemistry

• Chemical Reactions and Equations: Types of reactions, balancing equations.
• Acids, Bases, and Salts: Properties of acids and bases, PH scale.
• Metals and Non-Metals: Properties, Extraction Processes.
• Carbon Compounds: Organic Chemistry Basics.

RRB JE 2026 Important Topics for the Basics of Computers and Applications

The important topics for Computers and applications are as follows:

• Computer Architecture
• Input and Output Devices
• Storage Devices
• Operating Systems (Windows, Linux, Unix)
• Networking
• Websites and Web Browsers
• Computer Viruses
• Internet and Email
• Data Representation
• MS Office Suite (Word, Excel, PowerPoint)
• Database Management Systems (DBMS) Fundamentals
• Programming Basics (C Language, Java)

RRB JE 2026 Important Topics for Environment and Pollution Control

The key topics from Environment and Pollution Control include:

• Basics of Environment
• Effects of Environmental Pollution
• Pollution Control Strategies
• Types of Pollution (Air, Water, and Noise)
• Waste Management
• Global Warming
• Acid Rain
• Ozone Depletion

RRB JE 2026 Important Topics for Technical Abilities

Candidates should prepare this section with full concentration and a smart study plan to improve their chances of selection. Proper understanding and regular practice of important topics from this section can help aspirants score well and perform confidently in the exam. The main topics included in this section are given below:

Civil Engineering

• Building Materials
• Structural Analysis
• Concrete Technology
• Geotechnical Engineering
• Water Resources Engineering
• Transportation Engineering
• Environmental Engineering
• Surveying
• Construction Management

Mechanical Engineering

• Engineering Mechanics
• Strength of Materials
• Theory of Machines
• Thermodynamics
• Manufacturing Technology
• Material Science
• Design of Machine Elements

Electrical Engineering

• Electrical Circuits
• Electrical Machines
• Power Systems
• Control Systems
• Electrical Measurements

Electronics Engineering

• Analog Electronics
• Digital Electronics
• Communication Systems
• Microprocessors and Microcontrollers
• Signal Processing

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