DDA JE Electrical Syllabus 2025 DDA JE (Junior Engineer) Exam Pattern in English (based on the typical structure followed in previous years – subject to official notification for 2025
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✅ DDA JE Electrical Syllabus – 2025
Here’s a detailed syllabus for the Junior Engineer (Electrical) post under DDA based on common patterns and previous exams. The exact syllabus will be confirmed once the official notification is out, but this covers the important topics you should prepare.
1. General Awareness
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Current Affairs – National & International
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Important Government Schemes
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Books and Authors
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Awards and Honors
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Sports & Culture
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Basic Science
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Static GK (History, Geography, Polity, Economy)
2. General Intelligence & Reasoning
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Analogies
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Series (Number & Alphabet)
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Coding-Decoding
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Direction Sense
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Blood Relations
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Syllogism
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Logical Reasoning
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Non-verbal reasoning (Puzzles, Figures)
3. Numerical Ability
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Number System
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Simplification & Approximation
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Percentage, Profit & Loss
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Ratio & Proportion
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Average
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Simple & Compound Interest
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Time & Work
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Speed, Time & Distance
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Algebra (basic)
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Geometry and Mensuration
4. Electrical Engineering – Detailed Syllabus
Basic Electrical Concepts
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Ohm’s Law, Kirchhoff’s Laws
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Series and Parallel Circuits
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Electrical Power & Energy
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Units and Measurements
AC Fundamentals
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Single-phase and Three-phase systems
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AC circuits – R, L, C circuits
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Power factor and its improvement
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Resonance in AC circuits
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Transformers – Principle, Construction, and Operation
Electrical Machines
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Transformers – Types, Losses, Efficiency, Testing
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DC Machines – Construction, Working, Applications
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Induction Motor – Types, Working Principle, Performance
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Synchronous Machines – Construction, Working, Applications
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Alternators – Output, Efficiency
Power Systems
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Generation, Transmission, and Distribution
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Substations
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Overhead lines, Cables, Insulators
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Faults in Power Systems, Protection methods
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Earthing
Measurement & Instrumentation
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Electrical Measuring Instruments – Voltmeters, Ammeters, Wattmeters
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Energy meters
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Instrument Transformers – CT, PT
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Relay – Types and Working
Electrical Safety
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Safety procedures in electrical installations
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Precautions during testing and maintenance
Basic Electronics
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Semiconductor Devices – Diode, Transistor
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Rectifiers, Filters
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Amplifiers
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Oscillators
DDA JE exam is a single-stage Computer Based Test (CBT) consisting of 120 objective-type questions worth 120 marks, to be completed in 2 hours. The paper includes 80 questions on the technical discipline (Civil, Electrical, or Mechanical), along with sections on General Awareness (10 questions), Quantitative Aptitude (20 questions), and Reasoning (10 questions). There is a negative marking of 0.33 marks for each incorrect answer.
- Exam Mode: Computer Based Test (CBT).
- Type: Objective Type (Multiple Choice Questions).
- Total Questions: 120.
- Total Marks: 120.
- Duration: 2 hours.
📌 Preparation Tips
✔ Focus on circuit analysis and practical applications
✔ Solve numerical problems daily
✔ Revise theory concepts for machines and power systems
✔ Practice previous year questions
✔ Work on time management and sectional tests
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