What is the RRB JE Syllabus 2026?

RRB JE Syllabus 2026 consists of two stages. CBT 1 covers 100 questions across Mathematics, General Intelligence & Reasoning, General Awareness, and General Science, while CBT 2 covers 150 questions across General Awareness, Physics & Chemistry, Computer Applications, Environment & Pollution, and branch-specific Technical Abilities.

What is the exam pattern for RRB JE CBT 1?

RRB JE CBT 1 has 100 questions of 100 marks, to be solved in 90 minutes. It includes Mathematics (30), General Intelligence & Reasoning (25), General Awareness (15), and General Science (30), with 1/3 mark negative marking per wrong answer.

What is the exam pattern for RRB JE CBT 2?

RRB JE CBT 2 has 150 questions of 150 marks in 120 minutes. It includes Technical Abilities (100 questions), followed by General Awareness (15 questions), Physics & Chemistry (15 questions), Computer Applications (10 questions), and Environment & Pollution (10 questions).

Is there negative marking in the RRB JE exam?

Yes, RRB JE has a negative marking of 1/3 mark for every wrong answer in both CBT 1 and CBT 2.

Where can I download the RRB JE Syllabus PDF?

You can download the official RRB JE Syllabus PDF directly from rrbcdg.gov.in, or can download it from the link provided in this article.

How is the final RRB JE merit list prepared?

The final merit list is prepared based on CBT 2 marks (normalized across shifts).

Is the RRB JE exam tough?

Both the SSC JE and RRB JE examinations are challenging due to the high number of applicants and limited vacancies. However, the difficulty level of each exam depends largely on the aspirants' preparation and individual strengths.

Does RRB JE CBT 2 include Computer Applications questions for all branches?

Yes, Basics of Computer Applications (10 questions) is a common section in CBT 2 for all technical branches.

RRB JE Syllabus 2026 for CBT 1 & CBT 2, Check Exam Pattern & Topic-Wise Syllabus PDF Here

Table of Contents

RRB JE Syllabus 2026 consists of two stages, CBT 1 & CBT 2. The CBT 1 exam covers 100 questions across Mathematics, General Intelligence & Reasoning, General Awareness, and General Science & CBT 2 exam covers 150 questions across General Awareness, Physics & Chemistry, Computer Applications, Environment & Pollution, and branch-specific Technical Abilities. This article provides the complete RRB JE Syllabus 2026 derived from the official website for the Junior Engineer, Depot Material Superintendent (DMS), and Chemical & Metallurgical Assistant (CMA) posts, along with the exam pattern, official PDF link, Topic-wise syllabus, & preparation tips.

RRB JE Syllabus 2026- Overview

Feature	Information
Conducting Body	Railway Recruitment Board (RRB)
Exam Name	RRB JE Exam
Name of the Posts	Junior Engineer, Depot Material Superintendent, Chemical & Metallurgical Assistant
Number of Questions	CBT 1 – 100 Questions CBT 2 – 150 Questions
Marking Scheme	1 Mark per correct answer
Negative Marking	1/3 Mark per wrong answer
Selection Process	CBT 1, CBT 2, Document Verification, & Medical Examination
Official Website	rrbcdg.gov.in
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RRB JE Syllabus PDF Download 2026

Candidates can download the official RRB JE Syllabus PDF from the official Railway Recruitment Board’s website. We have provided the official Syllabus PDF in the link below, which is initially taken from the official website.

Download RRB JE Official Syllabus PDF – Click Here

RRB JE Exam Pattern 2026

The RRB JE Exam consists of two Computer-Based Tests: CBT 1 & CBT 2, in an objective & multiple-choice format. CBT 1 is an aptitude-based screening test, while CBT 2 primarily tests branch-specific technical abilities and general knowledge. Both stages have different exam patterns, which are given below.

RRB JE CBT 1 Exam Pattern

Subject	No. of Questions	Marks
Mathematics	30	30
General Intelligence & Reasoning	25	25
General Awareness	15	15
General Science	30	30
Total	100	100

Note: The exam consists of 100 questions with a total duration of 90 minutes. Candidates receive 1 mark for each correct answer, while 1/3 mark is deducted for each wrong answer.

RRB JE CBT 2 Exam Pattern

Subjects	No. of Questions	Marks
General Awareness	15	15
Physics & Chemistry	15	15
Basics of Computer Applications	10	10
Basics of Environment & Pollution	10	10
Technical Abilities	100	100
Total	150	150

Note: The exam consists of 150 questions with a total duration of 2 hours (120 minutes). Candidates receive 1 mark for each correct answer, while 1/3 mark is deducted for each wrong answer.

RRB JE Syllabus 2026

The RRB JE Syllabus is divided into 2 parts: CBT 1 syllabus & CBT 2 syllabus for all engineering branches. The CBT 1 syllabus (an aptitude-based screening test) & CBT 2 Syllabus (a CBT test of technical abilities and general knowledge). The detailed Topic-wise syllabus is given below.

RRB JE CBT 1 Syllabus 2026

The RRB JE CBT 1 Syllabus covers topics from Mathematics, General Intelligence & Reasoning, General Awareness, & General Science. The detailed topics are given below.

Mathematics Topics for CBT 1 Syllabus

Mathematics Important Topics

Number systems
BODMAS
Decimals
Fractions
LCM and HCF
Ratio and Proportion
Percentages
Mensuration
Time and Work
Time and Distance
Simple and Compound Interest
Profit and Loss
Algebra
Geometry
Trigonometry
Elementary Statistics
Square Root
Age Calculations
Calendar & Clock
Pipes & Cistern

General Intelligence and Reasoning Topics for CBT 1 Syllabus

General Intelligence and Reasoning Important Topics

Analogies
Alphabetical and Number Series
Coding and Decoding
Mathematical operations
Relationships
Syllogism
Jumbling
Venn Diagram
Data Interpretation and Sufficiency
Conclusions and Decision-Making
Similarities and Differences
Analytical reasoning
Classification
Directions
Statement – Arguments and Assumptions, etc.

General Awareness Topics for CBT 1 Syllabus

General Awareness Important Topics

Knowledge of Current affairs
Indian Geography
Culture and history of India, including the freedom struggle
Indian Polity and Constitution
Indian Economy
Environmental Issues Concerning India and the World, Sports, General scientific and technological developments, etc.

General Science Topics for CBT 1 Syllabus

Physics, Chemistry, and Life Sciences (up to 10th Standard CBSE syllabus)

RRB JE CBT 2 Syllabus

The RRB JE CBT 2 Syllabus includes non-technical (General Awareness, Physics & Chemistry, Basics of Computer Applications, Basics of Environmental & Pollution) & Technical subjects. The detailed subject-wise syllabus is given below.

CBT 2 Syllabus for General Awareness

General Awareness Important Topics

Knowledge of Current affairs
Indian Geography
Culture and history of India, including the freedom struggle
Indian Polity and Constitution
Indian Economy
Environmental Issues Concerning India and the World, Sports, General scientific and technological developments, etc.

CBT 2 Syllabus for Physics and Chemistry

Physics and Chemistry Important Topics
Physics	Chemistry
Units & Measurements Motion Force Work, Power & Energy Gravitation Heat & Thermodynamics Sound Light Reflection & Refraction Electricity Magnetism Modern Physics Semiconductor Basics	Matter and its Nature Atomic Structure Chemical Bonding Periodic Table Acids, Bases and Salts Metals & Non-metals Carbon and its Compounds Organic Chemistry Hydrocarbons Functional Groups Polymers Corrosion Alloys Metallurgy Environmental Chemistry Green Chemistry Pollution Ozone Layer Greenhouse Effect Global Warming

Basics of Computers and Applications Topics for CBT 2 Syllabus

Computers and Applications Important Topics

Computers and their architecture
Input & Output devices
MS Office
Storage devices
Operating Systems
Internet and Email
Websites & Web Browsers
Networking
Computer Virus

Basics of Environment and Pollution Control Topics for CBT 2 Syllabus

Basics of Environment and Pollution Control Important Topics

Basics of Environment
The adverse effects of environmental pollution
Pollution control strategies
Types of pollution
Waste Management
Global warming
Acid rain
Ozone depletion

Technical Abilities Topics for CBT 2 Syllabus

The Detailed Syllabus for Technical Sections is mentioned below. Candidates who are preparing for the RRB JE Exam must keep checking the detailed RRB JE Syllabus branch-wise here:

RRB JE Civil Syllabus

Subject	Key Topics
Engineering Mechanics	Force, equilibrium, friction, centroid and centre of gravity, simple machines
Building Construction & Materials	Building components, types of structures, masonry materials, timber and miscellaneous materials
Construction of Sub/Super-structure	Job layout, earthwork, foundations, masonry types, doors/windows, stairs, scaffolding
Building Finishes & Maintenance	Floors, walls, roofs, cracks and settlement, re-baring techniques
Building Drawing	Conventions, planning principles, plan/elevation/section drawings, perspective drawing
Concrete Technology	Cement and aggregate properties, mix design, quality control, special concrete types
Surveying	Chain, compass, plane table, levelling, contouring, theodolite, tacheometric survey, curves, aerial survey
Computer-Aided Design	CAD software (AutoCAD, Auto Civil, 3D Max), CAD commands, plan/elevation/section/3D generation
Geotechnical Engineering	Soil properties, permeability and seepage, shear strength, bearing capacity, compaction, site investigation
Hydraulics	Fluid properties, hydrostatic pressure, fluid flow through pipes and channels, hydraulic machines
Irrigation Engineering	Hydrology, reservoir planning, percolation tanks, diversion headworks
Mechanics & Theory of Structures	Stress and strain, shear force and bending moment, moment of inertia, trusses, slope and deflection
Design of Concrete & Steel Structures	Working Stress and Limit State methods, design of beams/slabs/columns/footings, steel sections and connections
Transportation & Highway Engineering	Railway, bridge and tunnel engineering; road geometric design, pavement construction, traffic engineering
Environmental Engineering	Pollution control, public water supply, sewage and solid waste management, sanitation and plumbing
Advanced Construction Techniques	Fibers and plastics, advanced concreting methods, formwork, pre-fabricated construction, construction equipment
Estimating, Costing & Contracts	Types of estimates, rate analysis, engineering contracts, tender documents

RRB JE Electrical Syllabus

Topic	Key Subtopics
Basic Concepts	Resistance, inductance, capacitance, current, voltage, power, energy and their units
Circuit Law	Kirchhoff’s laws, network theorems for simple circuit solutions
Magnetic Circuit	Flux, MMF, reluctance, magnetic materials, electromagnetic induction, self and mutual induction
AC Fundamentals	Instantaneous/peak/RMS/average values, sinusoidal waveforms, series-parallel AC circuits, resonance, polyphase systems
Measurement & Measuring Instruments	Power and energy measurement, wattmeter methods, ammeter/voltmeter/multimeter/Megger, AC bridges, CRO, CT/PT
Electrical Machines	DC machines, transformers (construction, equivalent circuit, voltage regulation, tests, efficiency), 3-phase induction motors, single-phase induction motors
Synchronous Machines	EMF generation, armature reaction, voltage regulation, parallel operation of alternators, synchronizing
Generation, Transmission & Distribution	Power stations, load/tariff factors, faults, switchgear, protection systems, transmission and distribution systems, cables
Estimation & Costing	Lighting scheme estimation, electric installation, IE rules, earthing practices
Utilization of Electrical Energy	Illumination, electric heating and welding, electroplating, electric drives and motors
Basic Electronics	Diodes, transistors, BJTs, JFETs, and simple circuits using these devices

RRB JE Electronics & Telecommunication Engineering Syllabus

Topic	Key Subtopics
Electronic Components & Materials	Conductors, semiconductors, insulators, magnetic materials, cells and batteries, relays, switches, MCBs
Electronic Devices and Circuits	PN junction diodes, thyristors, junction transistors, amplifiers, oscillators, rectifiers, inverters, UPS
Digital Electronics	Number systems and binary codes, Boolean algebra, logic gates, A/D & D/A converters, counters and memories
Linear Integrated Circuits	Operational amplifiers, voltage regulators, timers, phase-locked loops
Microprocessor and Microcontroller	8085 microprocessor, assembly language programming, peripherals, microcontrollers
Electronic Measurements	Measuring systems, CRO, LCD/LED panels, transducers
Communication Engineering	Modulation and multiplexing techniques, wave propagation, transmission lines, OFC, radar, cellular and satellite communication
Data Communication and Network	Networking devices, LAN/WAN, interworking
Computer Programming	Fundamentals of C and C++, control statements, functions, arrays, strings, pointers, data structures, DBMS
Basic Electrical Engineering	DC circuits, AC fundamentals, magnetic/thermal/chemical effects of current, earthing

RRB JE Mechanical Engineering Syllabus

Topic	Key Subtopics
Engineering Mechanics	Resolution of forces, equilibrium, friction, moment of inertia, Newton’s laws, D’Alembert’s principle, conservation of energy and momentum
Material Science	Mechanical properties of materials, classification of steels, heat treatment processes
Strength of Materials	Stress, strain, stress-strain diagram, thermal stresses, strain energy, shear force and bending moment diagrams, torsion, thin cylinder shells
Machining	Lathe working, cutting tool nomenclature, machining operations, shaper/slotter/planer/broaching/milling, gear manufacture
Welding	Arc and gas welding, soldering and brazing, MIG & TIG welding
Grinding & Finishing Processes	Metal removal principles, abrasives, grinding machines, honing, lapping, electroplating
Metrology	Linear and angle measurement, surface roughness, interferometry, profile projection
Fluid Mechanics & Hydraulic Machinery	Fluid properties, Pascal’s law, buoyancy, Reynolds number, Bernoulli’s equation, centrifugal pumps, jet and submersible pumps

RRB JE CSE Syllabus (Computer Science Engineering)

Subject	Topics
PC Software	– MS Windows, MS Word, MS Excel & PowerPoint
Computer fundamentals	– Evolution of Computers, Hardware & Software, Internet.
C Language	– Structure, Loop, Control Statements, Arrays, Pointers, Functions, Structures and Unions, Files
Computer Organisation	– Number Systems, Logic Gates, Flip-Flops, Boolean Algebra, DMA, Instruction Sets.
Information Systems	– Information concepts, Hardware & Software, Overview of Communication Systems, E-Commerce
Data Structures using C++	– Object-oriented Programming, Data Structures, Stack, Queue, Pointers, Linked List, Searching & Sorting Algorithms
DBMS fundamentals	– BASIC, Data Models, RDBMS, Relational Algebra, SQL, DDL, DML, and DCL Statements, Creating Tables, Equi-Joins, Self Joins, PL/SQL, Functions, Cursor and Triggers.
System Programming	– Background, Assemblers, Loaders and Linkers, Macro Processors, Compilers
Operating System using LINUX	– Operating System, Types, Features & Basic Architecture of Unix/Linux System, Unix File System & Structure, Linux Commands for files and directories, Filters and Pipes, Process, Creating and Editing Files with VI Editor, System Administration, Role of System Administrator, Managing User Accounts.
Web Technologies and Programming	– Internet & Intranet, Hardware & Software like Bus, Ethernet, LAN, Routers, Gateways, Bridge, Switches, Subnet etc. Internet Service Providers, Backbones, NAPs, URLs, Domain Names, Email, Web Server and Proxy Server, Web Caches, Web Browser like Internet Explorer, Internet Viruses, Internet Security Issues, Firewall, Data Encryption, Digital Signatures and Certificates, Creating Website and Home Page, HTML Programming Basics, Syntax and Rules, Search and Search Engine for Internet, Outlook Express and Front Page.
System Analysis and Design	– System components; system planning: Fact-finding techniques: Tools for documenting procedures and decisions; Structured Analysis: Data flow analysis; flow diagrams; Data dictionary; Application Prototype: System Design: software development specification; Design – Input, output, files, control. Procedure, Program specification, etc: Design of computer output & its presentation.
Data and Network Communication	– Data Communication – Distributed processing network criteria, protocol, and standards. Topologies etc. OSI model, layers. TPC/IP protocol. Digital to Digital Conversion, Digital to Analog Conversion, Digital data transmission. Standards, Modems, Cable Modem. Transmission media: Guided & Unguided Media, Performance, wavelength; Multiplexing, DSL. Error detection and correction, VRC, LRC, CRC, Ethernet, Token Bus, Token Ring.
Java Programming	– JAVA and Internet: Support systems and environment; JVM: Data Type; program structure. Constants & Variables, Type Casting; Operators, Class, Creating Objects, Class Members, Constructors, Overloading, Inheritance, Arrays. Creating Threads: Threads Class; Thread Methods; Thread Priority; Synchronization. Applets: Executable Applet, Adding Applet to HTML, File; passing Parameters to Applets.
Software Engineering	– Software Process – life cycle models; system engineering: Software Requirements – Functional and non-functional; prototyping; verification; validation. Design Concepts and Principles – design heuristic; architectural design; user interface design; system design; SCM process. Software testing – types of test; testing strategies; integration and validation testing; system testing and debugging. Software Project Management – Measures and measurements; cost estimation; Task Network; Error Tracking; CASE tools.

RRB JE Printing Technology Syllabus

Topic	Sub Topics
Printing Systems	Different printing methods, image carriers, impression and ink transfer methods, proofing methods, and suitability of jobs for various printing processes.
Printing Materials	Materials used for graphic reproduction, image carriers, printing substrates, inks and coatings, and binding materials.
Flexo, Gravure and Screen Printing	Flexographic principles, plate surface preparation, flexographic press work, gravure image carrier preparation, inks for gravure, slitting and rewinding, and screen printing.
Printing Finishing Processing	Introduction to binding and finishing, materials used in binding, methods of binding, modern commercial binding, forwarding operations, automation in binding.
Image Processing	Types of originals, process room equipment, line and halftone photography, digital image processing, computer-to-plate, and image editing software.
Design & Advertising in Print Media	Introduction to typographic design and advertising, the role of typography in design, designing aspects of books, magazines, newspapers, design of miscellaneous printed products, operations, and functions of an advertising agency.
Sheet-fed Offset Machines	Offset lithographic presses, printing unit, inking and dampening, sheet

RRB JE CMA Syllabus (Chemical & Metallurgical Assistant)

Sr. No.	Syllabus
1.	Measurements, Units and Dimensions, Types of errors in measurements, Signiﬁcance of accuracy in measurement.
2.	Light: Basic principles of light – reﬂection, refraction, laws of reﬂection, total internal reﬂection, interference, diffraction, and polarization. The formula for magniﬁcation of a microscope and a telescope. Electromagnetic spectra.
3.	Heat: Heat as energy- sources of heat, Transmission of heat, Expansion of solids, liquids, and gases. Temperature (based on thermal equilibrium), Different Scales of Temperature. Calorimetry, Applications of Speciﬁc heat, Latent heat. Anomalous expansion of water and its significance in nature. Combustion, Caloriﬁc value, speciﬁc heat of gases.
4.	Sound: Sources of sound. Propagation of sound. The velocity of sound in different media/substances. Characteristics of sound. Reﬂection of sound, echo, Resonance, Sonar, and Doppler effect.
5.	Mechanics: Scalars and Vectors. All types of motion. Friction. Newton’s laws of motion. Momentum. Equations of motion (under gravity and freely falling), projectile. Range. Laws of Floatation. Work, Power, and Energy. Conservation of energy. Center of mass. Centre of gravity. Stability and Equilibrium. The universal law of Gravitation. Relation between ‘g’ and ‘G’. Circular motion, Kepler’s Laws. Elasticity and Hooke’s Law.
6.	Magnetism: Magnetic ﬁeld, Uniform and non-uniform magnetic ﬁelds. Magnetic induction. Magnetic lines of force. Magnetic pole strength, Magnetic moment. Inverse square law of magnetism. Magnetic properties of materials and their classiﬁcation.
7.	Electricity & Electromagnetism: Electric charge, ﬁeld, electric intensity, electric potential, potential difference. Simple Electric Circuits. Conductors, Nonconductors / Insulators, Coulomb’s inverse square law. Primary and secondary Cells. Ohm’s Law – its limitations. Resistances in series and parallel, Emf of a circuit; Speciﬁc resistance. Kirchhoff’s laws. Relation between electric potential and Electric energy, electric Power (wattage). Heating effect of electric current, and Joule’s law. Ampere’s law, circular loop, and Solenoid. Magnetic force on moving charged particles and long straight conductors. Fleming’s left-hand rule, Electric motor. Electromagnetic induction – Faraday’s law, Electromagnetic ﬂux. Lenz’s law, Generators, and Alternating Currents. Inductance – self, mutual inductance, and principles of the transformer.
8.	Modern Physics: Discharge of Electricity through gases, Cathode rays, Anode rays, and their properties; X-rays; Atomic models: JJ Thomson, Rutherford, and Bohr’s models. Atomic nucleus and its structure. Atomic models: Mass defect; Radioactivity- discovery, properties of alpha, beta, and gamma radiations. Applications of alpha, beta, and gamma radiations, alpha, beta decay, Half-life period, Isotopes, Isobars, and Isotones. Artiﬁcial radioactivity; radioisotopes and their uses in different ﬁelds; radioactive series; Chain and controlled nuclear reactions; Fission and fusion of nuclei – atomic bomb and hydrogen bomb.
9.	Electronics and Communications: Semiconductors, diode, p-n junction characteristics. Transistor – PNP & NPN characteristics and uses. Zener Diode characteristics. Simple electronic circuits, Logic gates – applications, modulation, and demodulation.
10.	Matter: States of matter. Elements, Compounds, and Mixtures. Methods of separation of mixtures. Chromatography. Behavior of gases; measurable properties of gases; gas laws. Mole concept. Dalton, Avogadro, Berzelius laws.
11.	Chemical Reactions: Physical and chemical changes. Types of Chemical Reactions; Physical and Chemical properties of various compounds. Chemical calculations. NaOH, Bleaching powder, baking soda, washing soda, and their uses, Plaster of Paris.
12.	Acids and Bases, Salts: Strength and uses of Acids & Bases. Neutralization. Nature and uses of different Salts. Water of crystallization. Complex, Neutral, and double salts. Oxidation and Reduction, Rancidity. Identiﬁcation of Acids, Bases– Indicators: Natural, Chemical. PH Scale – Role of PH in daily life, agriculture, medicine. Classiﬁcation of salts based on afﬁnity to water. Examples of Acidic, Basic, Mixed, Complex, Neutral, and double salts. Solutions – Types of solutions; solubility, ionization, Concentration; Oxidation number concept. Balancing of Redox reactions, Calculation of Concentrations. Stoichiometry.
13.	Atomic Structure: Electromagnetic spectrum, Atomic spectrum, Characteristics of electron, proton, and neutron, Rutherford’s model of an atom, nature of electromagnetic radiation, Plank’s quantum mechanics, explanation of the photoelectric effect, features of atomic spectra, characteristics of hydrogen spectrum, Bohr’s theory of the structure of the atom, Bohr’s explanation of spectral lines, failure of Bohr’s theory, wave-particle nature of electrons, de Broglie’s hypothesis, Heisenberg’s uncertainty principle, important features of the Quantum mechanical model of an atom, Quantum numbers, the concept of orbitals, deﬁne an atomic orbital in terms of quantum numbers-shapes of s, p and d orbitals, n l x rule, Energies of electronic energy levels (n+l) rule state Aufbau principle, Pauli’s exclusive principle and Hund’s rule of maximum multiplicity, electronic conﬁguration of an atom, explanation of the stability of half ﬁlled and completely ﬁlled orbital.
14.	Periodic Classiﬁcation of Elements: Characteristics of elements in groups and periods. Signiﬁcation of atomic number and electronic conﬁguration as the basis per periodic classiﬁcation. Classiﬁcation of elements into s-block, p-block, d-block, f-block, and their main characteristics. Periodic trends in physical and chemical properties of elements. Study of different Groups of the periodic table.
15.	Chemical Bonding: Ionic and Covalent Bonds: Introduction to chemical bonding. Electronic Conﬁguration of Noble Gases. sigma and pi bonds with examples. Shapes of molecules, bond lengths and bond angles in molecules. Hybridization and explanation of H2O, BF3, CH4, NH3 etc. molecules. Hydrogen bonding and types of H bonds.
16.	Carbon and its Compounds: Need to study carbon compounds separately. Classiﬁcation of Organic compounds: Hydrocarbons – Alkanes, alkenes, alkynes, aromatic and aliphatic compounds with examples. Bonding in Carbon, including Hybridization. Allotropes of Carbon. The versatile nature of carbon. Tetravalency, Chains, branches, and rings. Catenation, Isomerism. Saturated and Unsaturated carbon compounds. Bonding of carbon with other elements. Functional groups in carbon compounds. Homologous series. Chemical properties of carbon compounds: Combustion and Oxidation. Addition reactions. Substitution reaction. Important carbon compounds. Nomenclature of organic compounds. Carbohydrates and their classiﬁcation. Proteins-examples, Oils and fats examples, Polythene – Nylon, PVC, Polyvinyl alcohol; Rubber – used in daily life. Polymers and other important organic compounds.
17.	Environmental Chemistry: Different types of pollution, acid rain, Ozone, and its reactions, effects of depletion of the ozone layer, Greenhouse effect, and global warming, Green Chemistry as an alternative tool for reducing pollution.
18.	Metallurgy: Occurrence of Metals. Minerals, Ores – Examples. Extractions of metals – activity series and related metallurgy, ﬂow chart of steps involved in the extraction of metals from ore. Reﬁning metals, electrolytic refining, Corrosion – Prevention of Corrosion. Alloys and their uses.

RRB JE Preparation Tips 2026

In the CBT 2 exam, the technical section carries 100 marks out of 150 total marks, so prioritize the branch’s specific technical topics over general sections for the CBT 2 exam.
Mathematics consists of 30 questions in the CBT 1 exam and is the single highest-weightage in the CBT 1 section, so practice daily & build speed.
Practice with the 12th-standard NCERT books for CBT 2 Physics & Chemistry instead of jumping straight to advanced reference books.
Practice branch-specific previous year papers. This helps you identify which topics within your technical syllabus are repeated most often.
Take mock tests for time management for both CBT 1 & CBT 2