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Syllabus for General Aptitude (GA)
(COMMON TO ALL PAPERS)
Verbal Ability: English grammar, sentence completion, verbal analogies, word groups,
instructions, critical reasoning and verbal deduction.
Numerical Ability: Numerical computation, numerical estimation, numerical reasoning and data
interpretation.
Metallurgical Engineering
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 nonlinear 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; Correlation and regression
analysis.
Numerical Methods: Solutions of linear and nonlinear (Bisection, Secant, Newton
Raphson methods) algebraic equations; integration by trapezoidal and Simpson’s
rule; single and multistep methods for differential equations.
Section 2: Thermodynamics and Rate Processes
Laws of thermodynamics, activity, equilibrium constant, applications to
metallurgical systems, solutions, phase equilibria, Ellingham and phase stability
diagrams, thermodynamics of surfaces, interfaces and defects, adsorption and
segregation; basic kinetic laws, order of reactions, rate constants and rate limiting
steps; principles of electro chemistry single electrode potential, electrochemical
cells and polarizations, aqueous corrosion and protection of metals, galvanic
corrosion, crevice corrosion, pitting corrosion, intergranular corrosion, selective
leaching, oxidation and high temperature corrosion – characterization and control;
heat transfer – conduction, convection and heat transfer coefficient relations,
radiation, mass transfer – diffusion and Fick’s laws, mass transfer coefficients;
momentum transfer – concepts of viscosity, shell balances, Bernoulli’s equation,
friction factors.
Section 3: Extractive Metallurgy
Minerals of economic importance, comminution techniques, size classification,
flotation, gravity and other methods of mineral processing; agglomeration, pyro,
hydro, and electrometallurgical processes; material and energy balances;
principles and processes for the extraction of nonferrous metals – aluminium,
copper, zinc, lead, magnesium, nickel, titanium and other rare metals; iron and
steel making – principles, role structure and properties of slags, metallurgical coke,
blast furnace, direct reduction processes, primary and secondary steel making,
ladle metallurgy operations including deoxidation, desulphurization, sulphide shape
control, inert gas rinsing and vacuum reactors; secondary refining processes
including AOD, VAD, VOD, VAR and ESR; ingot and continuous casting; stainless
steel making, furnaces and refractories.
Section 4: Physical Metallurgy
Crystal structure and bonding characteristics of metals, alloys, ceramics and
polymers, structure of surfaces and interfaces, nanocrystalline and amorphous
structures; solid solutions; solidification; phase transformation and binary phase
diagrams; principles of heat treatment of steels, cast iron and aluminium alloys;
surface treatments; recovery, recrystallization and grain growth; structure and
properties of industrially important ferrous and nonferrous alloys; elements of Xray
and electron diffraction; principles of optical, scanning and transmission electron
microscopy; industrial ceramics, polymers and composites; introduction to
electronic basis of thermal, optical, electrical and magnetic properties of materials;
introduction to electronic and optoelectronic materials.
Section 5: Mechanical Metallurgy
Elasticity, yield criteria and plasticity; defects in crystals; elements of dislocation
theory – types of dislocations, slip and twinning, source and multiplication of
dislocations, stress fields around dislocations, partial dislocations, dislocation
interactions and reactions; strengthening mechanisms; tensile, fatigue and creep
behaviour; superplasticity; fracture – Griffith theory, basic concepts of linear elastic
and elastoplastic fracture mechanics, ductile to brittle transition, fracture
toughness; failure analysis; mechanical testing – tension, compression, torsion,
hardness, impact, creep, fatigue, fracture toughness and formability.
Section 6: Manufacturing Processes
Metal casting – patterns and moulds including mould design involving feeding,
gating and risering, melting, casting practices in sand casting, permanent mould
casting, investment casting and shell moulding, casting defects and repair; 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 – soldering, brazing and welding, common welding
processes of shielded metal arc welding, gas metal arc welding, gas tungsten arc
welding and submerged arc welding; Welding metallurgy, problems associated
with welding of steels and aluminium alloys, defects in welded joints; Powder
metallurgy – production of powders, compaction and sintering; NDT using dyepenetrant,
ultrasonic, radiography, eddy current, acoustic emission and magnetic
particle methods.
380 docs127 tests
