Here is the Syllabus for GATE Mechanical Engineering Exam 2023

GATE Mechanical Engineering Sections

Topics

Engineering Mathematics

Linear Algebra

Differential Equations

Calculus

Complex Variables

Probability & Statistics

Numerical Methods.

Applied Mechanics and Design

Engineering Mechanics: Friction and its applications including rolling friction, clutches, wedge, belt-pulley, screw jack, brakes, vehicles, etc.; Free-body diagrams and equilibrium; kinematics and dynamics of rigid bodies in plane motion; trusses and frames; virtual work; impulse and momentum (linear and angular) and energy formulations; Machine Design Theory of Machines, Mechanics of Materials, Vibrations; Lagrange's equation.

Mechanics of Materials: Mohr's circle for a plane, plane strain, and stress; Poisson's ratio, elastic constants, stress, and strain; bending moment diagrams and shear force; thin cylinders; bending and

shear stresses; deflection of beams; concept of shear centre; torsion of circular shafts; energy methods; strain gauges and rosettes; thermal stresses; Euler's theory of columns; testing of hardness and impact strength; testing of materials with the universal testing machine.

Theory of Machines: Velocity, displacement, and acceleration analysis of plane mechanisms; flywheels and governors; dynamic analysis of linkages; cams; balancing of reciprocating and rotating masses; gears and gear trains; gyroscope; Vibrations: Effect of damping, free and forced vibration of single degree of freedom systems; critical speeds of shafts; vibration isolation; resonance.

Machine Design: Fatigue strength and the SN diagram; principles of the design of machine elements such as welded joints, bolted, and riveted; Design for static and dynamic loading; failure theories; sliding contact bearings, shafts, rolling, brakes and clutches, springs, gears.             

Fluid Mechanics and Thermal Sciences

Fluid Mechanics: Forces on submerged bodies, fluid statics, stability of floating bodies; Fluid properties; control-volume analysis of mass, energy, and momentum; differential equations of continuity and momentum; fluid acceleration; basics of compressible fluid flow; Bernoulli's equation; dimensional analysis; a viscous flow of incompressible fluids, elementary turbulent flow, boundary layer, head losses in pipes, flow through bends, pipes, and fittings.

Heat Transfer: One-dimensional heat conduction, heat transfer through fins, resistance concept, and electrical analogy; Modes of heat transfer; Heisler's charts, unsteady heat conduction, lumped parameter system; heat transfer correlations for flow over flat plates and through pipes, thermal boundary layer, effect of turbulence, dimensionless parameters in free and forced convective heat transfer; NTU and LMTD methods, heat exchanger performance; Wien's displacement law, radiative heat transfer, Stefan-Boltzmann law, radiation network analysis, black and grey surfaces, view factors.

Thermodynamics: Properties of pure substances, behavior of ideal and real gases; Thermodynamic systems and processes; calculation of work and heat in various processes, zeroth and first laws of thermodynamics; second law of thermodynamics; thermodynamic relations; availability and irreversibility, thermodynamic property charts and tables.

Applications: Turbomachinery: Pelton-wheel, Impulse and reaction principles, Kaplan turbines, velocity diagrams, and Francis; Power Engineering: Air and gas compressors; steam and gas turbines; vapour and gas power cycles, concepts of regeneration and reheat. I.C. Engines: Dual cycles, Air-standard Otto, Diesel. properties of moist air, psychrometric chart, basic psychrometric processes; Refrigeration and air-conditioning: Vapour and gas refrigeration and heat pump cycles

Materials, Manufacturing, and Industrial Engineering

Engineering Materials: Structure and properties of engineering materials, stress-strain diagrams for engineering materials, heat treatment phase diagrams.

Casting, Forming and Joining Processes: Solidification and cooling; riser and gating design. Different types of molds, design of patterns, castings, and cores; fundamentals of hot and cold working processes; Plastic deformation and yield criteria. metal forming processes, load estimation for bulk (rolling, forging, drawing, extrusion) and sheet (drawing, shearing, deep bending); Principles of adhesive bonding, welding, soldering, brazing; principles of powder metallurgy.

Machining and Machine Tool Operations: Single and multi-point cutting tools, tool life and wear, tool geometry and materials; Economics of machining; Mechanics of machining; basic machine tools; principles of jigs, work holding, and fixtures; abrasive machining processes; principles of non-traditional machining processes; CNC programming and NC/CNC machines.

Metrology and Inspection: Linear and angular measurements; Limits, fits, and tolerances; comparators; alignment and testing methods; interferometry; form and finish measurement; concepts of a coordinate-measuring machine (CMM); tolerance analysis in manufacturing and assembly.

Computer Integrated Manufacturing: Additive manufacturing; Basic concepts of CAD/CAM and their integration tools.

Production Planning and Control: Aggregate production planning, forecasting models, materials requirement planning scheduling; lean manufacturing.

Inventory Control: Safety stock inventory control systems.

Deterministic models.

Operations Research: Linear programming, simplex method, transportation, simple queuing models, assignment, network flow models, PERT, and CPM.