• Paper 1: 200 marks
• Paper 2: 300 marks

Nature of questions:

• Paper 1: Objective Type
• Paper 2: Conventional type

General Intelligence & Reasoning

2 Hours

Part – A General Engineering (Civil & Structural) Or Part-B General Engineering (Electrical) Or Part-C General Engineering (Mechanical)

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

3 hours

• Questions on analogies, similarities, differences, space visualization, problem solving, analysis, judgment,
• decision making, visual memory, discrimination, observation, relationship concepts, arithmetical reasoning,
• Verbal and figure classification, arithmetical number series etc.
• Questions designed to test the candidate’s abilities to deal with abstract ideas and symbols and their relationships,
• Arithmetical computations and other analytical functions.

• Building Materials, Estimating,
• Costing and Valuation,
• Surveying, Soil Mechanics,
• Hydraulics,
• Irrigation Engineering,
• Transportation Engineering,
• Environmental Engineering.
• Structural Engineering: Theory of Structures,
• Concrete Technology,
• RCC Design, Steel Design.

• Basic concepts,
• Circuit law,
• Magnetic Circuit,
• AC Fundamentals,
• Measurement and Measuring instruments,
• Electrical Machines,
• Fractional Kilowatt Motors and single phase induction Motors,
• Synchronous Machines,
• Generation, Transmission and Distribution,
• Estimation and Costing, Utilization and Electrical Energy,
• Basic Electronics.

Part C: Mechanical Engineering

• 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 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.

• Physical and Chemical properties,
• classification, standard tests,
• uses 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

• estimate, glossary of technical terms,
• analysis of rates, methods and unit of measurement,
• Items of work – earthwork, Brick work (Modular &Traditional bricks),
• RCC work, Shuttering, Timber work, Painting, Flooring, Plastering.
• Boundary wall, Brick building, Water Tank, Septic tank, Bar bending schedule,
• Centre line method, Mid-section formula, Trapezodial formula,
• Simpson’s rule.
• Cost estimate of Septic tank, flexible pavements, Tube well, isolates and combined footings, Steel Truss, Piles and pile-caps.
• Valuation – Value and cost, scrap value, salvage value, assessed value, sinking fund, depreciation and obsolescence, methods of valuation.

• Principles of surveying, measurement of distance, chain surveying, working of prismatic compass,
• compass traversing, bearings, local attraction,
• plane table surveying, theodolite traversing, adjustment of theodolite, Levelling,
• Definition of terms used in levelling, contouring, curvature and refraction corrections,
• temporary and permanent adjustments of dumpy level,
• methods of contouring, uses of contour map,
• tachometric survey, curve setting, earth work calculation, advanced surveying equipment

• Origin of soil,
• phase diagram,
• Definitions-void ratio,
• porosity, degree of saturation,
• water content, specific gravity of soil grains, unit weights,
• density index and interrelationship of different parameters,
• Grain size distribution curves and their uses.
• Index properties of soils, Atterberg’s limits, ISI soil classification and plasticity chart. Permeability of soil,
• coefficient of permeability, determination of coefficient of 12 permeability,
• Unconfined and confined aquifers, effective stress, quick sand, consolidation of soils,
• Principles of consolidation, degree of consolidation, pre-consolidation pressure, normally consolidated soil,
• E-log p curve, computation of ultimate settlement.
• Shear strength of soils, direct shear test, Vane shear test, Triaxial test.
• Soil compaction, Laboratory compaction test, Maximum dry density and optimum moisture content, earth pressure theories, active and passive earth pressures,
• Bearing capacity of soils, plate load test, and standard penetration test.

• 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

• Definition, necessity, benefits, effects of irrigation, types and methods of irrigation,
• Hydrology – Measurement of rainfall, run off coefficient, rain gauge, losses from precipitation – evaporation, infiltration, etc.
• Water requirement of crops, duty, delta and base period, Kharif and Rabi Crops, Command area, Time factor, Crop ratio, Overlap allowance, Irrigation efficiencies.
• Different type of canals, types of canal irrigation, loss of water in canals.
• Canal lining – types and advantages.
• Shallow and deep to wells, yield from a well.
• Weir and barrage, Failure of weirs and permeable foundation, Slit and Scour, Kennedy’s theory of critical velocity.
• Lacey’s theory of uniform flow. Definition of flood, causes and effects, methods of flood control, water logging, preventive measure.
• Land reclamation, Characteristics of affecting fertility of soils, purposes, methods, description of land and reclamation processes.
• Major irrigation projects in India

• Highway Engineering – cross sectional elements, geometric design, types of pavements, pavement materials – aggregates and bitumen, different tests,
• Design of flexible and rigid pavements – Water Bound Macadam (WBM) and Wet Mix Macadam (WMM), Gravel Road, Bituminous construction,
• Rigid pavement joint, pavement maintenance, Highway drainage, Railway Engineering- Components of permanent way – sleepers, ballast,
• Fixtures and fastening, track geometry, points and crossings, track junction, stations and yards.
• Traffic Engineering – Different traffic survey, speed-flow-density and their interrelationships, intersections and interchanges, traffic signals, traffic operation, traffic signs and markings, road safety

• Quality of water,
• source of water supply, purification of water,
• distribution of water, need of sanitation, sewerage systems,
• circular sewer, oval sewer, sewer appurtenances,
• sewage treatments. Surface water drainage.
• Solid waste management – types, effects, engineered management system.
• Air pollution – pollutants, causes, effects, control. Noise pollution – cause, health effects, control.

• Elasticity constants,
• types of beams – determinate and indeterminate,
• bending moment and shear force diagrams of simply supported,
• cantilever and over hanging beams.
• Moment of area and moment of inertia for rectangular & circular sections,
• bending moment and shear stress for tee,
• channel and compound sections,
• chimneys, dams and retaining walls

• Properties, Advantages and uses of concrete,
• cement aggregates, importance of water 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 concrete structures

• RCC beams-flexural strength,
• shear strength, bond strength,
• design of singly reinforced and double reinforced beams,
• Cantilever beams. T-beams, lintels.
• One way and two way 12 slabs, isolated footings.
• Reinforced brick works, columns, staircases, retaining wall,
• water tanks (RCC design questions may be based on both Limit State and Working Stress methods)

• Steel design and construction of steel columns,
• beams roof trusses plate girders

SSC Junior Engineer Exam 2023 Syllabus

• Concepts of resistance,
• inductance,
• Capacitance and various factors affecting them.
• Concepts of current, voltage, power, energy and their units

• Kirchhoff’s law,
• Simple Circuit solution using network theorems

• Concepts of flux, mmf, reluctance,
• Different kinds of magnetic materials,
• Magnetic calculations for conductors of different configuration e.g. straight, circular, solenoid, etc.
• Electromagnetic induction, self and mutual induction

• Instantaneous, peak, R.M.S. and average values of alternating waves,
• Representation of sinusoidal wave form, simple series and parallel AC Circuits consisting of R.L. and C, Resonance, Tank Circuit.
• Poly Phase system – star and delta connection,
• 3 phase power,
• DC and sinusoidal response of R-Land R-C circuit

• Measurement of power (1 phase and 3 phase, both active and re-active) and energy,
• 2 wattmeter method of 3 phase power measurement.
• Measurement of frequency and phase angle.
• Ammeter and voltmeter (both moving oil and moving iron type), extension of range wattmeter, Multimeters, Megger, Energy meter AC Bridges.
• Use of CRO, Signal Generator, CT, PT and their uses. Earth Fault detection

• Construction,
• Basic Principles of D.C. motors and generators, their characteristics, speed control and starting of D.C. Motors.
• Method of braking motor,
• Losses and efficiency of D.C. Machines

• Construction and Principles of operation,
• equivalent circuit,
• voltage regulation,
• O.C. and S.C. Tests,
• Losses and efficiency.
• Effect of voltage,
• Frequency and wave form on losses.
• Parallel operation of 1 phase /3 phase transformers.
• Auto transformers3 phase induction motors,
• rotating magnetic field,
• principle of operation,
• equivalent circuit,
• torque-speed characteristics,
• Starting and speed control of 3 phase induction motors.
• Methods of braking,
• effect of voltage and frequency variation on torque speed characteristics

• Generation of 3-phase e.m.f. armature reaction,
• voltage regulation,
• parallel operation of two alternators,
• synchronizing,
• control of active and reactive power.
• Starting and applications of synchronous motors

• Different types of power stations,
• Load factor,
• diversity factor,
• demand factor,
• cost of generation,
• Inter-connection of power stations.
• Power factor improvement,
• various types of tariffs,
• types of faults,
• Short circuit current for symmetrical faults.
• Switchgears – rating of circuit breakers,
• Principles of arc extinction by oil and air,
• H.R.C. Fuses,
• Protection against earth leakage / over current, etc

• Estimation of lighting scheme,
• Electric installation of machines and relevant IE rules.
• Earthing practices and IE Rules.

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

• Working of various electronic devices e.g. P N Junction diodes, Transistors (NPN and PNP type),
• BJT and JFET

• Concept of 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

• 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,
• Bucking of columns – Euler’s and Rankin’s theories,
• Thin walled pressure vessels

• Properties of Pure Substances P-V & P-T diagrams of pure substance like H2O,
• Introduction of steam table with respect to 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 Chart)

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

• Pressure at a point.
• Measurement of Fluid

• Manometers,
• U-tube,
• Inclined tube

• Stream line, laminar & turbulent flow,
• external & internal flow,
• continuity equation

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

• Classifications,
• Principles,
• Performance

• Mild steal & 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