SSC JE Mechanical Syllabus 2026, Subject Wise Syllabus In Detail

The Staff Selection Commission (SSC) has released the SSC JE 2026 Syllabus for the Junior Engineer examination. Candidates preparing for the exam should carefully review the syllabus to understand the subjects, topics, and exam pattern covered in the examination. A clear understanding of the SSC JE Mechanical 2026 syllabus helps candidates plan their preparation effectively. Aspirants should begin their preparation based on the official syllabus available on the commission’s website to understand the important subjects and exam difficulty level.

SSC JE Mechanical Syllabus 2026

SSC JE Mechanical Engineering Syllabus 2026

The detailed topic-wise SSC JE Syllabus 2026 is given below for the ease of candidates. Check the complete SSC Junior Engineering Mechanical Syllabus in this section:

SSC JE Mechanical Syllabus For Paper I

The SSC JE Tier 1 Civil Syllabus consists of the following subjects, as listed below:

• General Intelligence & Reasoning
• General Awareness
• General Engineering: Mechanical Engineering

General Engineering Topics

SSC JE Mechanical Engineering Syllabus 2026

• Theory of Machines and Machine Design
• IC Engines Combustion
• Air Standard Cycles for IC Engines
• IC Engine Performance
• 1st Law of Thermodynamics
• 2nd Law of Thermodynamics
• Boilers
• IC Engine Cooling & Lubrication
• Classification
• Rakhine Cycle of the System
• Specification
• Engineering Mechanics and Strength of Materials
• Centrifugal Pumps
• Basic Principles & Classification of Steel
• Hydraulic Turbines
• Dynamics of Ideal Fluids
• Fluid kinematics
• Measurement of Fluid Pressure
• Properties & Classification of Fluids
• Air Compressors & their cycles
• Refrigeration cycles
• Measurement of Flow Rate
• Fluid Statics
• Nozzles & Steam Turbines
• Principle of Refrigeration Plant
• Fitting & Accessories
• Theory of Machines and Machine Design,
• Engineering Mechanics and Strength of Materials,
• Properties of Pure Substances,
• 1st Law of Thermodynamics,
• 2nd Law of Thermodynamics,
• Air Standard Cycles for IC Engines,
• IC Engine Performance,
• IC Engines Combustion,
• IC Engine Cooling & Lubrication,
• Rankine cycle of the System,
• Boilers,
• Classification,
• Specification,
• Fitting & Accessories,
• Air Compressors & their cycles,
• Refrigeration cycles,
• Principle of Refrigeration Plant,
• Nozzles & Steam Turbines.
• Properties & Classification of Fluids,
• Fluid Statics,
• Measurement of Fluid Pressure,
• Fluid kinematics,
• Dynamics of Ideal Fluids,
• Measurement of Flow Rate,
• Basic principles,
• Hydraulic Turbines,
• Centrifugal Pumps,
• Classification of steels.

SSC JE Mechanical Syllabus For Paper 2

According to the SSC JE 2026 syllabus, the Tier 2 paper will consist of three parts and will be a written examination of 300 marks conducted for 2 hours. As per the syllabus, candidates can choose one of the three subjects in the SSC JE Tier 2 exam based on their engineering branch. The SSC JE 2026 Tier 2 exam subjects are as follows:

• Part-A (Civil Engineering & Structural Engineering)
• Part B (Electrical Engineering)
• Part-C (Mechanical Engineering)

Mechanical Engineering Syllabus

Theory of Machines and Machine Design

Concept of a simple machine, Four-bar linkage and link motion, Flywheels and fluctuation of energy, Power transmission by belts – V-belts and Flat belts, Clutches – Plate and Conical clutch, Gears – Type of gears, gear profile and gear ratio calculation, Governors – Principles and classification, Riveted joint, Cams, Bearings, Friction in collars and pivots.

Engineering Mechanics and Strength of Materials

Equilibrium of Forces, Law of motion, Friction, Concepts of stress and strain, Elastic limit and elastic constants, Bending moments and shear force diagram, Stress in composite bars, Torsion of circular shafts, Buckling of columns – Euler’s and Rankin’s theories, Thin-walled pressure vessels.

Properties of Pure Substances

p-v & P-T diagrams of pure substances like H₂O, Introduction of steam table concerning steam generation process; definition of saturation, wet & superheated status. Definition of dryness fraction of steam, degree of superheat of steam. H-s chart of steam (Mollier’s Chart).

1^st Law of Thermodynamics

Definition of stored energy & internal energy, 1^st Law of Thermodynamics of cyclic process, Non-Flow Energy Equation, Flow Energy & Definition of Enthalpy, Conditions for Steady State Steady Flow; Steady State Steady Flow Energy Equation.

2^nd Law of Thermodynamics

Definition of Sink, Source, Reservoir of Heat, Heat Engine, Heat Pump & Refrigerator; Thermal Efficiency of Heat Engines & Coefficient of performance of Refrigerators, Kelvin – Planck & Clausius Statements of 2^nd Law of Thermodynamics, Absolute or Thermodynamic Scale of temperature, Clausius Integral, Entropy, Entropy change calculation of ideal gas processes. Carnot Cycle & Carnot Efficiency, PMM-2; definition & its impossibility.

Air standard Cycles for IC engines

Otto cycle; plot on P-V, T-S Planes; Thermal Efficiency, Diesel Cycle; Plot on P-V, T-S planes; Thermal efficiency. IC Engine Performance, IC Engine Combustion, IC Engine Cooling & Lubrication.

Rankine cycle of steam

Simple Rankine cycle plot on P-V, T-S, h-s planes, Rankine cycle efficiency with & without pump work.

Boilers; Classification; Specification; Fittings & Accessories

Fire Tube & Water Tube Boilers.

Air Compressors & their cycles

Refrigeration Cycles, Principle of a Refrigeration Plant, Nozzles & Steam Turbines

Properties & Classification of Fluid

Ideal & real fluids, Newton’s law of viscosity, Newtonian and Non-Newtonian fluids, compressible and incompressible fluids.

Fluid Statics

Pressure at a point.

Measurement of Fluid Pressure:

Manometers, U-tube, and Inclined tube.

Fluid Kinematics

Streamline, laminar & turbulent flow, external & internal flow, continuity equation.

Dynamics of ideal fluids

Bernoulli’s equation, Total head, Velocity head, Pressure head; Application of Bernoulli’s equation.

Measurement of Flow Rate

Basic Principles: Venturi Meter, Pilot tube, Orifice Meter. Hydraulic Turbines: Classifications, Principles.

Centrifugal Pumps

Classifications, Principles, Performance. Production Engineering

Classification of Steels

mild steel & alloy steel, Heat treatment of steel, Welding – Arc Welding, Gas Welding, Resistance Welding, Special Welding Techniques i.e. TIG, MIG, etc. (Brazing & Soldering), Welding Defects & Testing; NDT, Foundry & Casting – methods, defects, different casting processes, Forging, Extrusion, etc, Metal cutting principles, cutting tools, Basic Principles of machining with (i) Lathe (ii) Milling (iii) Drilling (iv) Shaping (v) Grinding, Machines, tools & manufacturing processes.