GATE-Mechanical Engineering

After the candidate completes his graduation in mechanical engineering, he can appear for GATE in the mechanical engineering discipline (ME). GATE is an examination that primarily tests the comprehensive understanding of candidates in various undergraduate subjects of engineering and science for admission into the Master’s Program of institutes as well as jobs at Public Sector Companies. The syllabus of GATE for mechanical engineering mainly includes the following:

Linear Algebra -Linear equations, Matrix algebra, eigenvalues and eigenvectors. Differential equations - Linear and nonlinear, Euler-Cauchy equation; higher-order linear differential equations with constant coefficients, initial and boundary value problems; solutions of heat, wave and Laplace's equations; Laplace transforms. Calculus - Evaluation of definite and improper integrals; Functions of single variable, limit, continuity and differentiability, mean value theorem, indeterminate forms; double and triple integrals; total derivative, partial derivatives, maxima and minima, Taylor series (in one and two variables), Fourier series; divergence and curl, gradient, vector identities, line, directional derivatives, surface and volume integrals, and Green’s theorems and applications of Gauss, Stoke. Probability and Statistics - Probability, conditional probability; sampling theorems; median, mean, mode and standard deviation; binomial, random variables, normal and Poisson distributions. Numerical Methods - Integration by trapezoidal and Simpson’s rules; - Numerical solutions of linear and non-linear algebraic equations; single & multi-step for differential equations. Complex variables - Cauchy-Riemann equations; Analytic functions, Taylor and Laurent series. Cauchy’s integral theorem & integral formula.

Mechanics of Materials - Elastic constants, Stress and strain, Poisson's ratio, thin cylinders, Mohr’s circle for plane stress and plane strain, shear force and bending moment diagrams, deflection of beams, bending and shear stresses, torsion of circular shafts, energy methods, Euler’s theory of columns, thermal stresses, testing of materials with universal testing machine, strain gauges and rosettes, testing of hardness and impact strength. Engineering Mechanics - Trusses and frames; Free body diagrams and equilibrium, virtual work; impulse and momentum (linear and angular), kinematics and dynamics of particles & of rigid bodies in plane motion and energy formulations, collisions. Theory of Machines - Displacement, velocity and acceleration analysis of plane mechanisms; dynamic analysis of linkages; cams; gears and gear trains; flywheels and governors; balancing of reciprocating and rotating masses; gyroscope. Machine Design - Design for static and dynamic loading, Failure theories, fatigue strength and the S-N diagram, gears, shafts, rolling and sliding contact bearings, springs, brakes and clutches, principles of the design of machine elements like riveted, bolted and welded joints. Vibrations - Effect of damping, Free and forced vibration of single degree of freedom systems, resonance, vibration isolation, critical speeds of shafts.

Heat-Transfer - One dimensional heat conduction, modes of heat transfer, heat transfer through fins, resistance concept & electrical analogy, lumped parameter system, unsteady heat conduction, Heisler's charts, dimensionless parameters in free and forced convective heat transfer, thermal boundary layer, heat transfer correlations for flow over flat plates and through pipes, heat exchanger performance, effect of turbulence, LMTD & NTU methods; Stefan-Boltzmann law, radiative heat transfer, Wien's displacement law, view factors, black and grey surfaces and radiation network analysis. Fluid Mechanics - Fluid statics, properties, manometry, buoyancy, stability of floating bodies, forces on submerged bodies, control-volume analysis of mass, fluid acceleration, momentum and energy, differential equations of continuity and momentum, dimensional analysis, Bernoulli’s equation, viscous flow of incompressible fluids, elementary turbulent flow, boundary layer, flow through pipes, bends and fittings and head losses in pipes Applications - Power Engineering, I.C. Engines, Refrigeration and air-conditioning and Turbomachinery. Thermodynamics - Properties of pure substances, thermodynamic systems and processes, the behavior of ideal and real gases, calculation of work and heat in various processes, zeroth and first laws of thermodynamics, the second law of thermodynamics, thermodynamic relations and thermodynamic property charts and tables, availability and irreversibility.

Casting, Forming and Joining Processes - Design of patterns, molds and cores, Different types of castings, solidification and cooling, riser & gating design, fundamentals of hot and cold working processes, Plastic deformation and yield criteria load estimation for bulk (drawing, rolling, forging, extrusion) and sheet (deep drawing, shearing, bending), principles of powder metallurgy, metal forming processes, brazing, Principles of welding, soldering & adhesive bonding. Engineering Materials - Phase diagrams, structure and properties of engineering materials, heat treatment, stress-strain diagrams for engineering materials. Machining & Machine Tool Operations -Basic machine tools, Mechanics of machining, single and multi-point cutting tools, tool life and wear, tool geometry and materials, the economics of machining, principles of work holding, principles of non-traditional machining processes, design of jigs and fixtures. Computer Integrated Manufacturing - Concepts of CAD/CAM and their integration tools. Metrology and Inspection - Linear and angular measurements, Limits, fits and tolerances & comparators; gauge design, interferometry, alignment and testing methods, form and finish measurement, tolerance analysis in manufacturing and assembly. Production Planning and Control - Aggregate production planning, forecasting models, materials requirement planning and scheduling. Operations Research - Simplex method, linear programming, transportation, network flow models, assignment, simple queuing models and PERT & CPM. Inventory Control - Safety stock inventory control systems, Deterministic models.

Mentioned above is the outlined syllabus for GATE. There are minor changes being introduced frequently in the syllabus as well as the nature and weightage of questions.

After qualifying GATE, the candidate can go for further studies like post-graduation and Ph. D. from top tier institutes including IITs and NITs and receive stipend and fellowships based on the performance in the respective course or can apply for job in a PSU. Many PSUs (Public Sector Undertakings) prefer candidates from mechanical engineering background among some other selected branches owing to the nature of services they provide and the nature of products they manufacture or deal with.

Some such PSUs that prefer candidates from mechanical engineering as their major field of study include:

Some PSUs recruit candidates directly on the basis of their GATE scores with some specific required cutoff or percentile while some shortlist the candidates on the basis of their GATE scores for further stages of assessment that may include group discussion, descriptive examination or personal interview or all of these varying from company to company. Every PSU releases its own notification for the job.

ESE or the Engineering Services Examination is conducted by UPSC (Union Public Service Commission). It is conducted in 3 stages – Prelims, Mains and Personal Interview. After qualifying all the three stages, the candidate is recruited as an IES officer. Officers recruited through ESE are mandated to manage and conduct activities in diverse technical fields.

Major posts offered to IES officers of mechanical engineering as their major discipline are as follows:

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