GATE Metallurgical Engineering Question Papers
GATE (Graduate Aptitude Test in Engineering) Metallurgical Engineering is an online examination conducted to get admission in M-Tech (Masters in Technology), ME (Master of Engineering ), and Ph.D. at IITs (Indian Institutes of Technology), NITs (National Institutes of Technology), IIITs (Indian Institutes of Information Technology) and other universities in India. GATE exam is jointly conducted by IIT Bombay, IIT Delhi, IIT Guwahati, IIT Kanpur, IIT Kharagpur, IIT Madras, IIT Roorkee, and Indian Institute for Science, Bangalore (IISC Bangalore). The exam is divided into two different parts General Aptitude (GA) and Candidate’s Selected Subject (Core Subjects).
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GATE Metallurgical Engineering Previous year Question Papers With Solutions
GATE 2019 Metallurgical Engineering Question Papers with solution
GATE 2018 Metallurgical Engineering Question Papers with solution
GATE 2021 Metallurgical Engineering Revised syllabus
Section 1: Engineering Mathematics
Linear Algebra: Matrices and Determinants, Systems of linear equations, Eigen values and Eigen vectors.
Calculus: Limit, Continuity and Differentiability; Partial derivatives; Maxima and minima; Sequences and series; Test for convergence; Fourier series.
Vector Calculus: Gradient; Divergence and Curl; Line, Surface and volume integrals; Stokes, Gauss and Green’s theorems.
Differential Equations: Linear and non-linear first order ODEs; Higher order linear ODEs with constant coefficients; Cauchy’s and Euler’s equations; Laplace transforms; PDEs –Laplace, one-dimensional heat and wave equations.
Probability and Statistics: Definitions of probability and sampling theorems, conditional probability, Mean, median, mode and standard deviation; Random variables; Poisson, normal and binomial distributions; Analysis of experimental data; linear least squares method
Numerical Methods: Solutions of linear and non-linear (Bisection, Secant, Newton- Raphson methods) algebraic equations; integration by trapezoidal and Simpson’s rule; single and multi-step methods for differential equations.
Section 2: Metallurgical Thermodynamics
Laws of thermodynamics: First law – energy conservation, Second law – entropy; Enthalpy, Gibbs and Helmholtz free energy; Maxwell’s relations; Chemical potential; Applications to metallurgical systems, solutions, ideal and regular solutions; Gibbs phase rule, phase equilibria, binary phase diagram and lever rule, free-energy vs. composition diagrams; Equilibrium constant, Activity, Ellingham and phase stability diagrams; Thermodynamics of point defects, surfaces and interfaces, adsorption and segregation phenomena.
Electrochemistry: Single electrode potential, Electrochemical cells, Nernst equation, Potential-pH diagrams
Section 3: Transport Phenomena and Rate Processes
Momentum transfer: Concept of viscosity, shell balances, Bernoulli’s equation, mechanical energy balance equation, flow past plane surfaces and through pipes.
Heat transfer: Conduction, Fourier’s Law, 1-D steady state conduction
Convection: Heat transfer coefficient relations for forced convection
Radiation: Black body radiation, Stefan-Boltzman Law, Kirchhoff’s Law
Mass transfer: Diffusion and Fick’s laws, Mass transfer coefficients
Dimensional analysis: Buckingham Pi theorem, Significance of dimensionless numbers
Basic laws of chemical kinetics: First order reactions, reaction rate constant, Arrhenius relation, heterogeneous reactions, oxidation kinetics
Electrochemical kinetics: Polarization
Section 4: Mineral Processing and Extractive Metallurgy
Comminution techniques, Size classification, Flotation, Gravity and other methods of mineral beneficiation; Agglomeration: sintering, pelletizing and briquetting
Material and Energy balances in metallurgical processes; Principles and processes for the extraction of non- ferrous metals – aluminum, copper and titanium
Iron and steel making: Material and heat balance in blast furnace; Structure and properties of slags and molten salts – basicity of slags – sulphide and phosphate capacity of slags; Production of metallurgical coke
Other methods of iron making (COREX, MIDRE)
Primary steel making: Basic oxygen furnace, process dynamics, oxidation reactions, electric arc furnace
Secondary steel making: Ladle process – deoxidation, argon stirring, desulphurization, inclusion shape control, principles of degassing methods; Basics of stainless steel manufacturing Continuous Casting: Fluid flow in the tundish and mould, heat transfer in the mould, segregation, inclusion control
Section 5: Physical Metallurgy
Chemical Bonding: Ionic, covalent, metallic, and secondary bonding in materials, Crystal structure of solids – metals and alloys, ionic and covalent solids, and polymers
X-ray Diffraction – Bragg’s law, optical metallography, principles of SEM imaging
Crystal Imperfections: Point, line and surface defects; Coherent, semi-coherent and incoherent interfaces
Diffusion in solids: Diffusion equation, steady state and error function solutions; Examples- homogenenization and carburization; Kirkendall effect; Uphill diffusion; Atomic models for interstitial and substitutional diffusion; Pipe diffusion and grain boundary diffusion
Phase transformation: Driving force, Homogeneous and heterogeneous nucleation, growth kinetics
Solidification in isomorphous, eutectic and peritectic systems, cast structures and macrosegregation, dendritic solidification and constitutional supercooling, coring and microsegregation
Solid state transformations: Precipitation, spinoidal decomposition, ordering, massive transformation, discontinuous precipitation, eutectoid transformation, diffusionless transformations; Precipitate coarsening, Gibbs-Thomson effect
Principles of heat treatment of steels, TTT and CCT diagrams; Surface hardening treatments; Recovery, recrystallization and grain growth; Heat treatment of cast iron and aluminium alloys
Electronic, magnetic and optical properties of materials
Basic forms of corrosion and its prevention
Section 6: Mechanical Metallurgy
Strain tensor and stress tensor, Representation by Mohr’s circle, elasticity, stiffness and compliance tensor, Yield criteria, Plastic deformation by slip and twinning
Dislocation theory: Edge, screw and mixed dislocations, source and multiplication of dislocations, stress fields around dislocations; Partial dislocations, dislocation interactions and reactions
Strengthening mechanisms: Work/strain hardening, strengthening due to grain boundaries, solid solution, precipitation and dispersion
Fracture behaviour, Griffith theory, linear elastic fracture mechanics, fracture toughness, fractography, ductile to brittle transition
Fatigue: Cyclic stress strain behaviour – low and high cycle fatigue, crack growth
Mechanisms of high temperature deformation and failure; creep and stress rupture, stress exponent and activation energy
Section 7: Manufacturing Processes
Metal casting: Mould design involving feeding, gating and risering, casting practices, casting defects
Hot, warm and cold working of metals: Metal forming – fundamentals of metal forming processes of rolling, forging, extrusion, wire drawing and sheet metal forming, defects in forming
Metal joining: Principles of soldering, brazing and welding, welding metallurgy, defects in welded joints in steels and aluminum alloys
Powder metallurgy: production of powders, compaction and sintering
Non-destructive Testing (NDT): Dye-penetrant, ultrasonic, radiography, eddy current, acoustic emission and magnetic particle inspection methods