Railway Recruitment Board conducts a written test for filling up the vacancy of Junior Engineer (Electrical). This written test covers the areas of General Awareness, Numerical Ability, English Language, General Intelligence and Reasoning. Also, there is another section called technical ability which contains areas related to electrical engineering like Power Electronics, Applied Mechanics etc.

Main topics in RRB Junior Electrical Engineer Exam

• General Awareness
• General Intelligence
• General English
• Arithmetic Ability
• Reasoning Ability
• Technical Ability

Detailed Syllabus

General Awareness

• Acronyms
• Books and Authors
• Current Events
• Famous Personalities
• Geography of India
• Honours and Awards
• Important Dates
• Sports

General Intelligence

• Analogies
• Coding and Decoding
• Comparison of Ranks
• Direction Sense Test
• Logical Sequence of Words
• Number Series
• Odd man out series
• Series Completion

General English

• Antonyms
• Comprehension
• Meanings
• Relationship between words
• Sentence Correction
• Synonyms

Arithmetic Ability

• Angles and sides of various shapes
• Computation of decimals
• Computation of Fractions
• Computation of whole numbers
• LCM and HCF
• Percentage
• Probability
• Relationship between numbers
• Square root and Cube root
• Volume and Surface Area

Reasoning Ability

• Analyzing Arguments
• Blood Relation Test
• Cause and Effect
• Making Judgments
• Puzzles
• Seating Arrangement
• Statement and Assumption
• Statement and Conclusion

Technical Ability

• Applied Physics
• Applications of Light
• Applications of Sound
• D.C. Circuits
• Electromagnetism
• Electrostatics
• Expansion of Solids
• Force and Motion
• Heat Transfer
• Rotational and Simple Harmonic Motions
• Temperature and Its Measurement
• Units and Dimensions
• Waves
• Work, Power and Energy
• Applied Mechanics
• Centre of Gravity
• Friction
• Laws of Forces
• Laws of Motion
• Moments
• Simple Machines
• Basic Electronics
• Basic Logic Gates
• FET­construction, working and applications
• Regulated Power Supply
• Semi­Conductor Diodes
• Semi­Conductor Physics
• Single Stage Transistor Amplifier
• Transistor Biasing and Stabilization
• Transistors
• Electronic Devices and Circuits
• Feedback in Amplifiers
• Multistage Transistor Amplifier
• Sinusiodal Oscillators
• Transistor Audio Power Amplifier
• Tuned­Voltage Amplifiers
• Wave ­Shaping And Switching Circuits
• Electrical Power
• Carrier Communication
• Distribution System
• Earthing
• Faults
• Over Voltage protection
• Power Factor
• Protection Devices
• Protection Scheme
• Sub Stations
• Switch Gear System
• Transmission Systems
• Various Types of Tariffs
• Electrical Science
• AC Theory
• Battery
• DC Circuits
• Electromagnetic Induction
• Magnetism and Electromagnetism
• Polyphase System
• Power Electronics
• Applications of SCRs and Triacs
• Basic Power Control Devices
• Commutation of SCRs
• Introduction to Digital Electronics
• Introduction to Integrated Circuits, Operational Amplifiers
• SCR specifications
• SCR triggering mechanisms
• Series and parallel configuration of SCRs
• Working principle of a full wave, single phase, SCR controlled rectifier for resistive and inductive loads

Apart from these sections, candidates need to have good knowledge about electrical machines and electrical engineering materials. Aspirants should devote more time on the preparation of core topics than other sections. This will help them to score good marks in the exam.