The syllabus is an important section which a candidate needs to look through before appearing for UPSC IES 2021 exam. Before appearing for exam candidates need to check eligibility criteria of UPSC IES 2021. Applicants need to be well prepared before attending the exam.
For prelims papers with Objective type questions, the duration is 2 hours and the maximum mark is 200.

Current issues of national and international importance relating to the social, economic and industrial development,

Engineering Aptitude covering Logical Reasoning and Analytical Ability,

Engineering Mathematics and Numerical Analysis,

General Principles of Design, Drawing, Importance of Safety,

Standards and Quality practices in production, construction, maintenance, and services,

Basics of Energy and Environment: Conservation, environmental pollution, and degradation, Climate Change, Environmental impact assessment,

Basics of Project Management,

Basics of Material Science and Engineering,

Information and Communication Technologies (ICT) based tools and their applications in Engineering such as networking, egovernance, and technologybased education,

Ethics and values in the Engineering profession.
UPSC IES/ESE 2021 Paper II Syllabus
UPSC IES/ESE 2021 Mechanical Engineering Syllabus
UPSC IES/ESE 2021 Paper I Syllabus

Thermodynamics, Cycles and IC Engines

Basic concepts, Open and Closed systems. Heat and work. Zeroth, First and Second Law, Application to nonFlow and Flow processors. Entropy, Availability, Irreversibility and Tds relations. Claperyron and real gas equations, Properties of ideal gases and vapours. Standard vapour, Gas power, and Refrigeration cycles.Twostage compressor. CI and S.I. Engines. Preignition, Detonation and Dieselknock, Fuel injection and Carburation, Supercharging. Turboprop and Rocket engines, Engine Cooling, Emission & Control, Flue gas analysis, Measurement of Calorific values. Conventional and Nuclear fuels, Elements of Nuclear power production.

Heat Transfer and Refrigeration and Airconditioning

Modes of heat transfer. One dimensional steady and unsteady conduction. Composite slab and Equivalent Resistance. Heat dissipation from extended surfaces, Heat exchangers, Overall heat transfer coefficient, Empirical correlations for heat transfer in laminar and turbulent flows and for free and forced Convection, Thermal boundary layer over a flat plate. Fundamentals of diffusive and convective mass transfer, Black body and basic concepts in Radiation, Enclosure theory, Shape factor, Network analysis. Heat Pump and Refrigeration cycles and systems, Refrigerants. Condensers, Evaporates and Expansion devices, Psychrometry, Charts and application to air conditioning, Sensible heating and cooling, Effective temperature, comfort indices, Load calculations, Solar refrigerations, controls, Duct design.

Fluid Mechanics

Properties and classification of fluids, Manometry, forces on immersed surfaces, Center of pressure, Buoyancy, Elements of stability of floating bodies. Kinematics and Dynamics. Irrotational and incompressible. Inviscid flow. Velocity potential, Pressure field, and Forces on immersed bodies. Bernoulli’s equation, Fully developed flow through pipes, Pressure drop calculations, Measurement of flow rate and Pressure drop. Elements of boundary layer theory, Integral approach, Laminar and turbulent flows, Separations. Flow over Weirs and notches. Open channel flow, Hydraulic jump. Dimensionless numbers, Dimensional Analysis, Similitude, and modelling onedimensional isentropic flow, Normal shock wave, Flowthrough convergentdivergent ducts, Oblique shockwave, Rayleigh and Fanno lines.

Fluid Machinery and Steam Generators

Performance, Operation, and control of hydraulic Pump and impulse a reaction Turbines, Specific speed, Classification. Energy transfer, Coupling, Power transmission, Steam generators Firetube and watertube boilers. The flow of steam through Nozzles and Diffusers, Wetness, and condensation. Various types of steam and gas Turbines, Velocity diagrams. Partial admission. Reciprocating, Centrifugal, and axial flow Compressors, Multistage compression, the role of Mach Number, Reheat, Regeneration, Efficiency, Governance.
UPSC IES/ESE 2021 Paper II Syllabus

THEORY OF MACHINES

Kinematic and dynamic analysis of planar mechanisms. Cams. Gears and gear trains. Flywheels. Governors. Balancing of rigid rotors and field balancing. Balancing of single and multicylinder engines, Linear vibration analysis of mechanical systems. Critical speeds and whirling of shafts Automatic controls.

MACHINE DESIGN

The design of Joints: cotters, keys, splines, welded joints, threaded fasteners, joints formed by interference fits. Design of friction drives: couplings and clutches, belt and chain drives, power screws. Design of Power transmission systems: gears and gear driveshaft and axle, wire ropes. Design of bearings: hydrodynamics bearings and rolling element bearings.

STRENGTH OF MATERIALS

Stress and strain in two dimensions, Principal stresses, and strains, Mohr’s construction, linear elastic materials, isotropy and anisotropy, stressstrain relations, uniaxial loading, thermal stresses. Beams: Bending moment and shear force diagram, bending stresses and deflection of beams. Shear stress distribution. Torsion of shafts, helical springs. Combined stresses, thickand thinkwalled pressure vessels. Struts and columns. Strain energy concepts and theories of failure.

ENGINEERING MATERIALS

Basic concepts on the structure of solids. Crystalline materials. Detects in crystalline materials. Alloys and binary phase diagrams. Structure and properties of common engineering materials. Heat treatment of steels. Plastics, Ceramics and composite materials. Common applications of various materials.

PRODUCTION ENGINEERING

Metal Forming: Basic Principles of forging, drawing and extrusion; High energy rate forming; Powder metallurgy. Metal Casting: Die casting, investment casting, Shall Moulding, Centrifugal Casting, Gating & Riser design; melting furnaces. Fabrication Processes: Principles of Gas, Arc, Shielded Arc Welding; Advanced Welding Processes, Weldability: Metallurgy of Welding. Metal Cutting: Turning, Methods of Screw Production, Drilling, Boring, Milling, Gear Manufacturing, Production of flat surfaces, Grinding & Finishing Processes. Computer Controlled Manufacturing SystemsCNC, DNC, FMS, Automation, and Robotics. Cutting Tools Materials, Tool Geometry, Mechanism of Tool Wear, Tool Life & Machinability; Measurement of cutting forces. Economics of Machining. Unconventional Machining Processes. Jigs and Fixtures. Fits and tolerances, Measurement of surface texture, Comparators Alignment tests and reconditioning of Machine Tools.

INDUSTRIAL ENGINEERING

Production Planning and Control: Forecasting  Moving average, exponential smoothing, Operations, scheduling; assembly line balancing, Product development, Breakeven analysis, Capacity planning, PERT, and CPM. Control Operations: Inventory control ABC analysis, EOQ model, Materials requirement planning. Job design, Job standards, Work Measurement, Quality Management  Quality analysis and control. Operations Research: Linear Programming  Graphical and Simplex Methods, Transportation and assignment models. Single server queueing model.
Value Engineering: Value analysis for cost/value.

ELEMENTS OF COMPUTATION

Computer Organisation, Flowcharting, Features of Common Computer Languages  FORTRAN, d Base III, Lotus 123, C and elementary Programming.
UPSC IES/ESE 2021 Civil Engineering Syllabus
UPSC IES/ESE 2021 Paper I Syllabus

BUILDING MATERIALS
 Timber: Different types and species of structural timber, densitymoisture relationship, strength in different directions, defects, the influence of defects on permissible stress, preservation, dry and wet rots, codal provisions for design, plywood. Bricks: Types, Indian Standard classification, absorption, saturation factor, strength in masonry, the influence of mortar strength on masonry strength. Cement: Compounds of, different types, setting times, strength. Cement Mortar: Ingredients, proportions, water demand, mortars for plastering and masonry. Concrete: Importance of W/C Ratio, Strength, ingredients including admixtures, workability, testing for strength, elasticity, nondestructive testing, mix design methods.

SOLID MECHANICS
 Elastic constants, stress, plane stress, Mohr’s circle of stress, strains, plane strain, Mohr’s circle of strain, combined stress; Elastic theories of failure; Simple bending, shear; Torsion of circular and rectangular sections and simple members.

STRUCTURAL ANALYSIS
 Analysis of determinate structures  different methods including graphical methods. Analysis of indeterminate skeletal frames  moment distribution, slope deflection, stiffness and force methods, energy methods, MullerBreslau principle, and application. Plastic analysis of indeterminate beams and simple frames  shape factors.

DESIGN OF STEEL STRUCTURES
 Principles of working stress method. Design of connections, simple members, Builtup sections and frames, Design of Industrial roofs. Principles of ultimate load design. Design of simple members and frames.

DESIGN OF CONCRETE AND MASONRY STRUCTURES
 Limit state design for bending, shear, axial compression and combined forces. Codal provisions for slabs, beams, walls, and footings. Working stress method of design of R.C. members. Principles of prestressed concrete design, materials, methods of prestressing, losses. Design of simple members and determinate structures. Introductions to prestressing of indeterminate structures. Design of brick masonry as per I.S. Codes.

CONSTRUCTION PRACTICE, PLANNING, AND MANAGEMENT
 Concreting Equipment: Weight Batcher, Mixer, vibrator, batching plant, concrete pump. Cranes, hoists, lifting equipment. Earthwork Equipment: Power shovel, hoe, dozer, dumper, trailers, and tractor, rollers, sheep foot rollers, pumps. Construction, Planning, and Management: Bar chart, linked bar chart, workbreakdown structures, Activity  on  arrow diagrams. Critical path, probabilistic activity durations; Eventbased networks. PERT network: Timecost study, crashing; Resource allocation.
UPSC IES/ESE 2021 Paper II Syllabus Civil Engineering

FLUID MECHANICS, OPEN CHANNEL FLOW, PIPE FLOW

Fluid Properties, Pressure, Thrust, Buoyancy; Flow Kinematics; Integration of flow equations; Flow measurement; Relative motion; Moment of momentum; Viscosity, Boundary layer and control, Drag, Lift; Dimensional Analysis, Modelling; Cavitation; Flow oscillations; Momentum and Energy principles in Open channel flow, Flow controls, Hydraulic jump, Flow sections and properties; Normal flow, Gradually varied flow; Surges; Flow development and losses in pipe flow, Measurements; Siphons; Surges and Water hammer; Delivery of Power Pipe networks.

HYDRAULIC MACHINES AND HYDROPOWER

Centrifugal pumps, types, performance parameters, scaling, pumps in parallel; Reciprocating pumps, air vessels, performance parameters; Hydraulic ram; Hydraulic turbines, types, performance parameters, controls, choice; Powerhouse, classification, and layout, storage, poundage, control of supply.

HYDROLOGY
 Hydrological cycle, precipitation, and related data analyses, PMP, unit and synthetic hydrographs; Evaporation and transpiration; Floods and their management, PMF; Streams and their gauging; River morphology; Routing of floods; Capacity of Reservoirs.

WATER RESOURCES ENGINEERING
 Water resources of the globe: Multipurpose uses of Water: SoilPlantWater relationships, irrigation systems, water demand assessment; Storages and their yields, groundwater yield and well hydraulics; Waterlogging, drainage design; Irrigation revenue; Design of rigid boundary canals, Lacey’s and Tractive force concepts in canal design, lining of canals; Sediment transport in canals; NonOverflow and overflow sections of gravity dams and their design, Energy dissipators and tailwater rating; Design of headworks, distribution works, falls, crossdrainage works, outlets; River training.
UPSC IES/ESE 2021 ENVIRONMENTAL ENGINEERING