What is the IES Mechanical Engineering Paper 1 Syllabus?
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1 Answer
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The candidates can see here the IES Mechanical Engineering Paper 1 Syllabus:
Topics
Sub-Topics
Fluid Mechanics
- Basic Concepts and Properties of Fluids, Manometry, Fluid Statics, Buoyancy, Equations of Motion, Bernoulli’s equation and applications, Viscous flow of incompressible fluids, Laminar and Turbulent flows, Flow through pipes and head losses in pipes.
Thermodynamics and Heat transfer - Thermodynamic systems and processes; properties of pure substance; Zeroth, First and Second Laws of Thermodynamics;
- Entropy, Irreversibility and availability; analysis of thermodynamic cycles related to energy conversion: Rankine, Otto, Diesel and Dual Cycles; ideal and real gases; compressibility factor; Gas mixtures.
- Modes of heat transfer, Steady and unsteady heat conduction, Thermal resistance, Fins, Free and forced convection,
Correlations for convective heat transfer, Radiative heat transfer – Radiation heat transfer co-efficient; boiling and
condensation, Heat exchanger performance analysis.
IC Engines, Refrigeration and Air conditioning - SI and CI Engines, Engine Systems and Components, Performance characteristics and testing of IC Engines; Fuels; Emissions and Emission Control.
- Vapour compression refrigeration, Refrigerants and Working cycles, Compressors, Condensers, Evaporators and Expansion devices, Other types of refrigeration systems like Vapour Absorption, Vapour jet, thermo electric and Vortex tube refrigeration.
- Psychometric properties and processes, Comfort chart, Comfort and industrial air conditioning, Load calculations and Heat pumps.
Turbo Machinery - Reciprocating and Rotary pumps, Pelton wheel, Kaplan and Francis Turbines, velocity diagrams, Impulse and Reaction principles, Steam and Gas Turbines, Theory of Jet Propulsion – Pulse jet and Ram Jet Engines,
- Reciprocating and Rotary Compressors – Theory and Applications
Power Plant Engineering - Rankine and Brayton cycles with regeneration and reheat, Fuels and their properties, Flue gas analysis, Boilers, steam turbines and other power plant components like condensers, air ejectors, electrostatic precipitators and cooling towers – their theory and design, types and applications;
Renewable Sources of Energy - Solar Radiation, Solar Thermal Energy collection - Flat Plate and focusing collectors their materials and performance.
- Solar Thermal Energy Storage, Applications – heating, cooling and Power Generation;
- Solar Photovoltaic Conversion;
- Harnessing of Wind Energy, Bio-mass and Tidal Energy – Methods and Applications, Working principles of Fuel Cells.
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The authority activated the UPSC IES 2026 application apply link on the official website at upsconline.nic.in. Candidates can apply via direct link provided on this page as well.
The UPSC IES 2025 Mains exam result is expected to be released in September 2025 or October first week. The commission has not yet announced the release date for the Mains result. The UPSC IES 2025 Mains exam was conducted on August 10.
The Commission will release the UPSC ESE 2026 Mains exam schedule on the official website at upsc.gov.in. Candidates who have will cleare the Prelims exam will be eligible to appear for the Mains exam on June 21, 2026. The schedule of the Mains exam once released will also be mentioned here:
As per the announced date, UPSC ESE 2026 Mains exam will be conducted on June 21, 2026 in two shifts.
Candidates are advised to analyze the previous years' cutoff, as it is a part of effective preparation. It also provides insights into the difficulty level of the exam, trends, and also the exam pattern or question pattern. It helps candidates to prioritize their preparation accordingly, set their targets, understand the important areas to focus on, make proper study plans, gain confidence, etc.
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