RRB JE CBT-2 Electrical Engineering Syllabus 2026: Subject-wise Topics and Exam Pattern
Siddharth Pandey18 Jul, 2026
Preparing for the RRB JE CBT-2 Electrical Engineering exam can be challenging because the Technical Abilities section covers a wide range of core engineering subjects and carries the highest weightage in the examination. Without a clear understanding of the complete syllabus, candidates may find it difficult to prioritise topics, plan their preparation, and allocate sufficient time for revision.
The RRB JE 2026 notification is yet to be released by the Railway Recruitment Board (RRB). However, the RRB JE CBT-2 Electrical Engineering syllabus generally remains consistent across recruitment cycles. The syllabus provided below is based on the latest official RRB JE notification and will be updated if the Railway Recruitment Board announces any changes for the 2026 recruitment cycle.
RRB JE CBT-2 Electrical Engineering Subject-wise Syllabus 2026
The Technical Abilities section forms the major portion of the CBT-2 examination. It includes topics from core Electrical Engineering subjects that are commonly studied during diploma and engineering programmes. Understanding each unit and preparing it thoroughly can help improve your performance in the examination.
Basic Concepts
The Basic Concepts section introduces the fundamental principles of Electrical Engineering. It covers electrical quantities, circuit laws, network analysis, and magnetic circuits that form the foundation for advanced topics.
|
Unit |
Topics Covered |
|
Electrical Quantities |
Current, Voltage, Power, Energy, Resistance, Conductance |
|
Circuit Fundamentals |
Ohm's Law, Kirchhoff's Current Law (KCL), Kirchhoff's Voltage Law (KVL) |
|
Network Theorems |
Superposition Theorem, Thevenin's Theorem, Norton's Theorem, Maximum Power Transfer Theorem |
|
Circuit Analysis |
Series Circuits, Parallel Circuits, Star-Delta Transformation |
|
AC Fundamentals |
Alternating Current, RMS Value, Average Value, Form Factor, Peak Factor |
|
Resonance |
Series Resonance, Parallel Resonance |
|
Magnetic Circuits |
Magnetic Flux, MMF, Reluctance, Permeability, Hysteresis, Eddy Current |
|
Electromagnetic Induction |
Faraday's Law, Lenz's Law, Self and Mutual Inductance |
Electrical Machines
Electrical machines form one of the most important sections of the RRB JE CBT-2 Electrical Engineering syllabus. Questions are generally asked from the construction, working principle, characteristics, testing, and applications of different electrical machines.
|
Unit |
Topics Covered |
|
DC Machines |
Construction, EMF Equation, Characteristics, Speed Control, Starters, Losses, Efficiency, Testing |
|
Transformers |
Construction, Working Principle, EMF Equation, Equivalent Circuit, Losses, Efficiency, Voltage Regulation, Auto Transformer |
|
Three-Phase Induction Motor |
Construction, Working Principle, Slip, Torque, Speed Control, Starting Methods, Performance Characteristics |
|
Single-Phase Induction Motor |
Types, Working Principle, Starting Methods, Applications |
|
Synchronous Machines |
Alternator Construction, EMF Equation, Parallel Operation, Synchronous Motor, Hunting, Voltage Regulation |
|
Special Electrical Machines |
Stepper Motor, Servo Motor, Universal Motor, Brushless DC Motor |
|
Testing of Machines |
Open Circuit Test, Short Circuit Test, Load Test, Efficiency Calculation |
Electrical Measurements and Measuring Instruments
Electrical measurements help determine the performance and operating conditions of electrical systems. Questions are generally asked on measuring instruments, bridges, transducers, and measurement errors.
|
Unit |
Topics Covered |
|
Measuring Instruments |
PMMC Instruments, Moving Iron Instruments, Dynamometer Type Instruments |
|
Measurement of Electrical Quantities |
Current, Voltage, Resistance, Power, Energy, Frequency |
|
Bridges |
Wheatstone Bridge, Kelvin Bridge, Maxwell Bridge, Schering Bridge |
|
Transducers |
Types, Characteristics, Applications |
|
Instrument Transformers |
Current Transformer (CT), Potential Transformer (PT) |
|
Measurement Errors |
Gross Errors, Systematic Errors, Random Errors |
|
Calibration |
Instrument Calibration and Accuracy |
Circuit Theory and Network Analysis
Circuit Theory forms the basis of several technical questions in CBT-2. Candidates should understand different methods of analysing electrical circuits and solving numerical problems.
|
Unit |
Topics Covered |
|
DC Network Analysis |
Series and Parallel Networks, Voltage Divider Rule, Current Divider Rule |
|
AC Network Analysis |
Impedance, Reactance, Admittance, Power Factor |
|
Mesh Analysis |
Mesh Current Method |
|
Nodal Analysis |
Node Voltage Method |
|
Network Theorems |
Superposition, Thevenin, Norton, Reciprocity, Compensation Theorem |
|
Two-Port Networks |
Parameters and Applications |
|
Resonance |
Series and Parallel Resonance |
Magnetic Circuits and Electromagnetic Fields
Magnetic circuits are widely used in transformers, motors, generators, and electrical machines. Understanding magnetic properties and electromagnetic principles is essential for solving conceptual and numerical questions.
|
Unit |
Topics Covered |
|
Magnetic Materials |
Ferromagnetic, Paramagnetic and Diamagnetic Materials |
|
Magnetic Circuits |
Magnetic Flux, MMF, Reluctance, Leakage Flux |
|
Electromagnetic Induction |
Faraday's Laws, Lenz's Law |
|
Inductance |
Self Inductance, Mutual Inductance |
|
Energy in Magnetic Fields |
Energy Storage, Force and Torque Production |
|
Hysteresis and Eddy Currents |
Losses, Applications and Reduction Methods |
Power Systems
The Power Systems unit covers the generation, transmission, distribution, and protection of electrical power systems. It is an important part of the RRB JE CBT-2 Electrical Engineering syllabus.
|
Unit |
Topics Covered |
|
Power Generation |
Thermal Power Plant, Hydroelectric Power Plant, Nuclear Power Plant, Gas Power Plant, Renewable Energy Sources |
|
Transmission Systems |
HVAC and HVDC Transmission, Transmission Line Parameters, Transmission Efficiency |
|
Distribution Systems |
Primary and Secondary Distribution, Radial, Ring Main and Interconnected Distribution Systems |
|
Substations |
Types of Substations, Bus Bar Arrangements, Substation Equipment |
|
Power System Components |
Feeders, Distributors, Service Mains |
|
Power Factor Improvement |
Capacitor Banks, Synchronous Condensers, Phase Advancers |
|
Tariffs |
Types of Electricity Tariffs, Load Curve, Demand Factor, Diversity Factor, Load Factor |
|
Protection and Switchgear |
Circuit Breakers, Relays, Fuses, Lightning Arresters |
Protection and Switchgear
Electrical protection ensures the safe operation of power systems by protecting equipment from faults and abnormal operating conditions. This section includes various protective devices and switchgear used in electrical installations.
|
Unit |
Topics Covered |
|
Protective Relays |
Types of Relays, Relay Characteristics, Relay Applications |
|
Circuit Breakers |
Oil Circuit Breaker, Air Blast Circuit Breaker, Vacuum Circuit Breaker, $\text{SF}_6$ Circuit Breaker |
|
Fuses |
Types of Fuses, HRC Fuse, Fuse Characteristics |
|
Lightning Protection |
Lightning Arresters, Surge Protection |
|
Switchgear |
Isolators, Disconnectors, Switches, Protective Equipment |
|
Fault Analysis |
Symmetrical and Unsymmetrical Faults, Fault Current Calculation |
|
Earthing |
Types of Earthing, Earthing Methods, Earth Resistance |
Power Electronics
Power Electronics deals with semiconductor devices used for controlling and converting electrical power. Numerical and conceptual questions are commonly asked from this section.
|
Unit |
Topics Covered |
|
Semiconductor Power Devices |
SCR, TRIAC, DIAC, MOSFET, IGBT, UJT |
|
Controlled Rectifiers |
Single-Phase and Three-Phase Controlled Rectifiers |
|
Choppers |
Step-Up Chopper, Step-Down Chopper |
|
Inverters |
Single-Phase Inverter, Three-Phase Inverter |
|
Cycloconverters |
Working Principle and Applications |
|
AC Voltage Controllers |
Principle of Operation and Applications |
|
Gate Drive Circuits |
Triggering Methods of SCR |
|
Protection of Power Devices |
Snubber Circuits, Heat Sinks, Device Protection Techniques |
Control Systems
Control Systems is an important topic that focuses on analysing the behaviour and stability of electrical systems. Questions are usually based on block diagrams, transfer functions, and system response.
|
Unit |
Topics Covered |
|
Control System Basics |
Open Loop and Closed Loop Systems |
|
Mathematical Modelling |
Transfer Functions, Block Diagram Reduction |
|
Signal Flow Graphs |
Mason's Gain Formula |
|
Time Response |
First Order and Second Order Systems |
|
Stability Analysis |
Routh-Hurwitz Criterion |
|
Frequency Response |
Bode Plot, Nyquist Plot |
|
Controllers |
Proportional (P), Integral (I), Derivative (D), PID Controllers |
|
Control System Components |
Servomechanisms, Synchros, Tachogenerators |
Utilisation of Electrical Energy
This unit focuses on the practical applications of electrical energy in industries, transportation, and commercial installations.
|
Unit |
Topics Covered |
|
Electric Heating |
Resistance Heating, Induction Heating, Dielectric Heating |
|
Electric Welding |
Arc Welding, Resistance Welding |
|
Illumination |
Lighting Systems, Lamps, Lighting Calculations |
|
Electric Traction |
Traction Systems, Traction Motors, Braking Methods |
|
Energy Conservation |
Energy Management, Energy-Efficient Equipment |
|
Industrial Applications |
Electric Drives and Industrial Uses of Electrical Energy |
|
Basic Electronics |
Semiconductor Diodes, BJT, FET, Operational Amplifiers, Digital Electronics Basics |
Basic Electronics
Basic Electronics introduces semiconductor devices and electronic circuits that are widely used in electrical engineering applications.
|
Unit |
Topics Covered |
|
Semiconductor Physics |
Intrinsic and Extrinsic Semiconductors |
|
Diodes |
PN Junction Diode, Zener Diode, Rectifiers, Clippers and Clampers |
|
Transistors |
BJT, FET, MOSFET Characteristics and Applications |
|
Amplifiers |
Single Stage Amplifiers, Multistage Amplifiers, Operational Amplifiers |
|
Oscillators |
RC Oscillator, LC Oscillator, Crystal Oscillator |
|
Feedback Circuits |
Positive and Negative Feedback |
|
Power Supplies |
Regulated and Unregulated Power Supplies |
Digital Electronics
Digital Electronics covers logic circuits, number systems, and digital devices used in modern electrical and electronic systems.
|
Unit |
Topics Covered |
|
Number Systems |
Binary, Octal, Decimal and Hexadecimal Number Systems |
|
Logic Gates |
AND, OR, NOT, NAND, NOR, XOR and XNOR Gates |
|
Boolean Algebra |
Boolean Laws, Logic Simplification |
|
Combinational Circuits |
Adders, Subtractors, Multiplexers, Demultiplexers, Encoders, Decoders |
|
Sequential Circuits |
Flip-Flops, Registers, Counters |
|
Memories |
RAM, ROM, EPROM, EEPROM |
|
Digital Devices |
A/D Converter, D/A Converter |
Electrical Estimation, Wiring and Safety
Electrical estimation and wiring are important practical topics that assess your understanding of electrical installations, safety measures, and cost estimation.
|
Unit |
Topics Covered |
|
Electrical Wiring |
Types of Wiring, Wiring Accessories, Wiring Systems |
|
Cables |
Types of Cables, Cable Selection, Cable Rating |
|
Earthing |
Pipe Earthing, Plate Earthing, Maintenance of Earthing Systems |
|
Electrical Estimation |
Material Estimation, Cost Estimation, Load Calculation |
|
Electrical Safety |
Electrical Hazards, Safety Precautions, Personal Protective Equipment (PPE) |
|
Indian Standards |
Basic Electrical Standards and Safety Practices |
|
Maintenance |
Preventive and Breakdown Maintenance of Electrical Equipment |
RRB JE CBT-2 Electrical Engineering Exam Pattern 2026
The RRB JE CBT-2 Electrical Engineering exam pattern outlines the marking scheme and question format for the Technical Abilities section. It is based on the latest official recruitment notification.
|
Particulars |
Details |
|
Subject |
Electrical Engineering (Technical Abilities) |
|
Question Type |
Objective Type (MCQs) |
|
Expected Questions |
100 |
|
Maximum Marks |
100 |
|
Marks per Question |
1 Mark |
|
Negative Marking |
1/3 Mark deducted for each incorrect answer |
|
Mode of Examination |
Computer-Based Test (CBT) |
Note: The above pattern is based on the latest official RRB JE recruitment. Any changes introduced in the RRB JE 2026 notification will be updated accordingly.
Related Resources
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