DDA JE Syllabus 2026 and Exam Pattern, Download Syllabus PDF

DDA JE Syllabus 2026 has been released by the official along with its notification PDF. Candidates must know the syllabus and exam pattern to prepare for the exam and plan an effective strategy. he syllabus provides a complete list of topics that candidates have to cover to prepare for the examination. Refer to the complete article for subject wise syllaus topics. 

DDA JE Syllabus and Exam Pattern 2026

The syllabus for the DDA JE exam comprises multiple sections, which include General Awareness, Reasoning, Quantitative Aptitude, English Language, and Technical Subject. Understanding the syllabus helps candidates to know the topics asked in the exam, the marking scheme, exam structure, and others. 

DDA JE Exam Pattern 2026

The DDA JE Exam 2026 will be conducted online and will consist of multiple sections. Candidates have to answer 150 questions in 2 hours for a total of 150 marks. There will be a negative marking of 0.33 marks deducted for each incorrect answer. 

DDA Junior Engineer Syllabus 2026

Below, we have provided the complete syllabus for the DDA JE Exam 2026. Candidates can check the topics below that they have to prepare for the exam. 

DDA JE Syllabus 2026 For Non-Technical Section

The Non-Tech Part will also play a major role in the selection of DDA exam as Junior Engineers. See below for the Non-Tech Portion

• Reasoning: It would include questions of both verbal and non-verbal types. This component may include questions on
• Quantitative Aptitude: The questions will be designed to test the ability to appropriately use numbers and number sense of the candidate. The scope of the test will be the
• English Language: Questions in this component will be designed to test the candidate’s understanding and knowledge of the English Language and will be based on

DDA JE Syllabus 2026 for Technical Knowledge

Here in this section, all the technical domain knowledge will be covered in detail. Candidates can see below for the DDA Junior Engineer Syllabus for the Technical Domain

DDA JE Civil Syllabus

• Building Materials: Physical and Chemical properties, classification, standard tests, use, and manufacture/quarrying of materials, e.g., building stones, silicate-based materials, cement (Portland), Asbestos products, Timber and wood-based Products, laminates, bituminous materials, paints, varnishes.
  Surveying: Principles of surveying, working of properties, compass, and bearing, plane table surveying, theodolite traverse, adjustment of theodolite, leveling and contouring, curvature, refraction, permanent adjustment of dumpy level, methods of contouring and uses of a control map, tachymetric survey.
• Soil Mechanics: Origin of the soil phase diagram, definitions of void ratio, porosity, degree of saturation, water content, the specific gravity of soil grains, and unit weights, grain size distribution curves for different solids and their uses. Atterberg’s limits, ISI soil classification, plasticity chart, coefficient of permeability, effective stress, and consolidation of soils. Calculation of shear strength of soils, direct shear test, vane shear test, triaxial test, soil compaction, Lab compaction, Lab compaction test, moisture content and bearing capacity of soils, plate load test, standard penetration test.
• Hydraulics: Fluid properties, hydrostatics, measurements of flow, Bernoulli’s theorem and its application, flow through pipes, flow in open channels, weirs, flumes, spillways, pumps, and turbines.
• Environmental Engineering: Quality of water, source of water supply, purification of water, distribution of water, the need for sanitation, sewerage system, circular sewers, oval sewer, sewer appurtenances, surface water drainage, sewage treatments.
• Structural Engineering: Theory of structures: Elasticity constants, types of beams, determinate and indeterminate, bending moment and shear force diagrams of simply supported, cantilever, and overhanging beams. Moment of area and moment of inertia for a rectangle & circular section, bending moment and shear stress for tee, channel and compound sections, chimneys, dams and retaining walls, eccentric loads, slope deflection of simply supported and cantilever beams, critical load and columns, torsion of circular section.
• Concrete Technology: Properties, Advantages, and uses of concrete, cement aggregates quality, water cement ratio, workability, mix design, storage, batching, mixing, placement, compaction, finishing and curing of concrete, quality control of concrete, hot weather, and cold weather concreting, repair and maintenance of the concrete structure.
• RCC Design: RCC beams: flexural strength, shear strength, bond strength, design of single reinforced beams, lintels, cantilever beams, double reinforced beams, one-way slabs, two-way slabs, isolated footings, reinforced brickwork. T-beams, columns, staircases, retaining walls, and water tanks (RCC design questions may be based on both the Limit State method and the Working Stress method).
• Steel Design: Steel design and construction of steel columns, beams, roof trusses, and plate girders

DDA JE Electrical Syllabus

1. Basic Concepts

• Resistance, inductance, capacitance – definitions & influencing factors
• Current, voltage, power, energy – concepts & units

2. Circuit Laws

• Kirchhoff’s laws
• Simple circuit solutions using network theorems

3. Magnetic Circuit

• Flux, MMF, reluctance, magnetic materials
• Magnetic calculations for different conductor configurations

4. Electromagnetic Induction

• Self and mutual induction

5. AC Fundamentals

• Instantaneous, RMS, peak, average values
• Representation of sinusoidal waveforms
• AC circuits (RL, RC, RLC) – series and parallel
• Resonance, tank circuits
• Polyphase systems – star/delta connections, 3-phase power
• DC and sinusoidal response of RL and RC circuits

6. Measurement & Measuring Instruments

• Power and energy measurement (single & 3-phase, reactive and active)
• 2-wattmeter method
• Frequency and phase angle measurement
• Ammeter & voltmeter (moving coil and iron types)
• Multimeters, Megger, energy meter
• AC bridges, CRO, signal generator
• CT, PT, earth fault detection

7. Electrical Machines

• DC Machines: Construction, working, speed control, braking, efficiency
• Transformers (1-phase & 3-phase): Principles, tests (OC/SC), losses, voltage regulation, auto-transformers
• 3-Phase Induction Motors: Operation, torque-speed characteristics, starting, braking, speed control
• Single-phase Induction Motors & Fractional kW Motors: Characteristics, applications
• Synchronous Machines: EMF generation, armature reaction, voltage regulation, starting, applications

8. Generation, Transmission & Distribution

• Power station types, load/demand factor, cost of generation
• Power factor improvement, tariffs
• Fault types, short-circuit current
• Switchgear – circuit breakers, arc extinction, fuses
• Protection devices – earth leakage, relays (Buchholtz, Merz-Price)
• Bus bar & feeder protection
• Lightning arresters, distribution systems
• Cables – types, rating, derating factor

9. Estimation & Costing

• Lighting scheme estimation
• Machine installation costing
• IE rules and earthing practices

10. Utilization of Electrical Energy

• Illumination
• Electric heating, welding, electroplating
• Electric drives and motors

11. Basic Electronics

• Diodes, transistors (NPN/PNP), BJT, JFET
• Simple circuits using electronic devices

DDA JE Mechanical Syllabus

1. Theory of Machines & Design

• Simple machines, four-bar linkage, flywheels
• Power transmission (V-belts, flat belts), clutches, gears
• Governors, cams, bearings, friction in collars/pivots
• Riveted joints

2. Engineering Mechanics & Strength of Materials

• Force equilibrium, laws of motion, friction
• Stress & strain, elastic constants
• Bending moment & shear force diagrams
• Composite bars, torsion, column buckling (Euler & Rankine)
• Thin-walled pressure vessels

3. Thermal Engineering

• Properties of Pure Substances: Steam tables, dryness fraction, Mollier chart
• First Law of Thermodynamics: Internal energy, flow/non-flow processes, enthalpy
• Second Law of Thermodynamics: Heat engines, refrigerators, entropy, Carnot cycle
• Air Standard Cycles: Otto and Diesel cycle – P-V, T-S diagrams, efficiency
• IC Engines: Performance, combustion, cooling, lubrication
• Steam Cycle: Rankine cycle – diagrams and efficiency
• Boilers: Classification, accessories, fire/water tube types
• Refrigeration: Basic principles and cycles
• Nozzles & Steam Turbines

4. Fluid Mechanics & Machinery

• Fluid properties: Newtonian/non-Newtonian, ideal/real fluids
• Fluid statics: Pressure at a point
• Pressure measurement: Manometers
• Fluid kinematics: Streamlines, laminar/turbulent flows
• Continuity equation
• Bernoulli’s theorem and applications
• Flow measurement: Venturimeter, pitot tube, orifice meter
• Hydraulic turbines: Types and working
• Centrifugal pumps: Principles and classification

5. Production Engineering

• Steel classification (mild & alloy), heat treatment
• Welding: Arc, gas, resistance, TIG/MIG, brazing, soldering
• Welding defects and non-destructive testing (NDT)
• Casting & Foundry: Processes, defects
• Metal Forming: Forging, extrusion
• Machining: Principles of lathe, milling, drilling, shaping, grinding
• Manufacturing processes and tools

DDA JE Syllabus 2026 Download PDF

Candidates preparing for the DDA JE Exam can also download the DDA JE Syllabus PDF from the link below and mark the topics they have completed and which are to be covered. 

DDA JE Syllabus PDF- Click to Download