DDA JE Syllabus 2026 & Exam Pattern: Download Official PDF

The DDA JE Syllabus 2026 has been officially released alongside the detailed notification PDF. Candidates must thoroughly understand the syllabus and exam pattern to craft a strategic preparation plan. This syllabus outlines all the essential topics required to excel in the examination. Review this article for a comprehensive, subject-wise breakdown of the curriculum. 

DDA JE Syllabus and Exam Pattern 2026

The DDA JE exam curriculum covers several key sections, including General Awareness, Reasoning, Quantitative Aptitude, English Language, and specific Technical Subjects. Mastering the syllabus is essential for candidates to grasp the exam structure, marking criteria, and topic weightage. 

DDA JE Syllabus 2026- Overview
Organization	Delhi Development Authority
Post	Junior Engineer
Mode of Exam	Online
Vacancies	171
Number of Questions	150
Marks	150
Duration	2 hours
Negative Marking	0.33 mark will be deducted for each incorrect answer
Official Website	https://dda.gov.in/

DDA JE Exam Pattern 2026

The DDA JE Exam 2026 will be conducted in an online format featuring multiple sections. Candidates are required to attempt 150 questions within a 120-minute duration, totaling 150 marks. Please note that a negative marking scheme applies, with 0.33 marks deducted for every incorrect response. 

Parts	Sections	Subjects	Questions	Marks	Duration
1	Professional Knowledge	Discipline-wise	100	100	2 hours
2	Non-Technical Section	General Awareness	10	10
		Reasoning	10	10
		Quantitative Aptitude	10	10
		English Language	10	10
		Computer Knowledge	10	10
Total			150	150

DDA Junior Engineer Syllabus 2026

We have provided the complete DDA JE Exam 2026 syllabus below. Candidates can review these topics to ensure their preparation aligns with the official requirements. 

DDA JE Syllabus 2026 For Non-Technical Section

The non-technical section is critical for your overall selection as a DDA Junior Engineer. Refer to the details below regarding the Non-Technical portion.

Subjects	Topics
General Awareness	India and its neighboring countries History Culture Geography Economic Scene General Policy Scientific Research Current Affairs
Reasoning	Analogies Similarities and differences Space visualization Spatial orientation Problem-solving Analysis Judgment Decision-making Visual memory Discrimination Observation Relationship concepts Arithmetical reasoning and figural classification Arithmetic number series Non-verbal series Coding and decoding Statement conclusion Syllogistic reasoning Semantic Analogy Symbolic/Number Analogy Figural Analogy Semantic Classification Symbolic/Number Classification Figural Classification Semantic Series Number Series, Figural Series Problem Solving Word Building 19 Numerical Operations Symbolic Operations Trends Space Orientation Space Visualization Venn Diagrams Drawing inferences Punched hole/pattern–folding & unfolding Figural Pattern– folding and completion Indexing Address matching, Date & city matching Small & Capital letters/numbers coding, decoding Classification
Quantitative Aptitude	Computation of whole numbers, decimals, fractions, and relationships between numbers Percentages Ratios & Proportions Square roots Averages Interests Profit and Loss Discounts Partnership Business Mixture and Allegation Time and distance Time & Work Basic algebraic identities of School Algebra Triangle and its various kinds of centers Congruence and similarity of triangles Circle and its chords, tangentsangles subtended by chords of a circle, common tangents to two or more circles Quadrilaterals Regular Polygons Sphere, Hemispheres Rectangular Parallelepiped Regular Right Pyramid with triangular or square base Trigonometric ratio Standard Identities Complementary angles Heights and Distances Histogram Frequency polygon Bar diagram & Pie chart.
English Language	Spotting errors Filling in the blanks Synonyms Antonyms Spelling/detecting misspelled words Idioms & phrases One-word substitution Improvement of sentences Active/passive voice of verbs Conversion into direct/indirect narration Shuffling of sentence parts Shuffling of sentences in a passage Cloze passage & comprehension passage

 

• 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

In this section, we cover the technical domain expertise required for the role. Find the detailed DDA Junior Engineer Syllabus for the Technical Domain listed below.

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 download the official DDA JE Syllabus PDF using the link below to track their progress and identify pending topics. 

DDA JE Syllabus PDF- Click to Download