GAIL Syllabus 2017, Mechanical, Chemical Engineering Exam Pattern

GAIL Syllabus:

Hello friends, GAIL Mechanical, Chemical Engineering etc Examination will be conducted very soon. Applicants those who will perform well in the
written exam of Mechanical, Chemical Engineering & other will be selected for the further process like interview or document verification process.

As we all know GAIL (India) Limited always recruits talented, hardworking and dedicated applicants who can fulfill the requirements of GAIL. To obtain the success in Mechanical, Chemical Engineering written exam you firstly need to know the exam syllabus of Mechanical, Chemical Engineering and the exam pattern. Many people prepare for the Mechanical, Chemical Engineering exam without any knowledge of syllabus and exam pattern but persons who prepare according to the syllabus and exam pattern of Mechanical, Chemical Engineering perform well then the others by giving minimum input to their preparation.

Job seekers who are going to join the Mechanical, Chemical Engineering Exam are suggested to solve the previous year’s unsolved question papers for their better preparation. As more you should practice the solving questions your accuracy and writing speed must be rapidly increase. But you have to work hard for Mechanical, Chemical Engineering Exams of GAIL. You should have listen this quote Practice makes the men perfect. Same thing is apply here as maximum you will practice to solve question your opportunity of performing well in the GAIL Mechanical, Chemical Engineering Examination will increase. Syllabus Full Details:

GENERAL APTITUDE – GA (Common to all papers):

General Aptitude (GA)
AE: Aerospace Engineering
PE: Petroleum Engineering
AG: Agricultural Engineering
 PH: Physics
AR: Architecture and Planning
 PI: Production and Industrial Engineering
BT: Biotechnology
TF: Textile Engineering and Fibre Science
CE: Civil Engineering
 XE -A: Engineering Mathematics
CH: Chemical Engineering
XE-B: Fluid Mechanics
CS: Computer Sc. and Information Technology
XE-C: Materials Science
CY: Chemistry
XE-D: Solid Mechanics
EC: Electronics and Communication Engg.
XE-E: Thermodynamics
EE: Electrical Engineering
XE-F: Polymer Science and Engineering
EY: Ecology and Evolution
XE – G: Food Technology
GG: Geology and Geophysics
XL – H: Chemistry
IN: Instrumentation Engineering
XL-I: Biochemistry
MA: Mathematics
XL-J: Botany
ME: Mechanical Engineering
XL – K: Microbiology
MN: Mining Engineering
XL – L: Zoology
 MT: Metallurgical Engineering
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.

Engineering Mathematics:

Syllabus for Civil Engineering, Chemical Engineering & Mechanical Engineering is same and same question would be asked in the examination of gate. Syllabus for Electrical Engineering, Electronics & Communication Engineering &; Instrumentation Engineering is same and same question would be asked in the examination of gate.

Syllabus for computer science & IT Engineering:

Few Topics are common with Electrical, Electronics, and mechanical engineering.

Linear Algebra: 

Matrix algebra, Systems of linear equations, Eigen values and eigenvectors.


Functions of single variable, Limit, continuity and differentiability, Taylor series, Mean value theorems, Evaluation of definite and improper integrals, Partial derivatives, Total derivative, Maxima and minima, Gradient, Divergence and Curl, Vector identities, Directional derivatives, Line, Surface and Volume integrals, Stokes, Gauss and Green’s theorems.

Differential equations: 

First order equations (linear and nonlinear), Higher order linear differential equations with constant coefficients, Cauchy’s and Euler’s equations, Initial and boundary value problems, Laplace transforms, Solutions of one dimensional heat and wave equations and Laplace equation.

Complex variables: 

Complex number, polar form of complex number, triangle inequality.

Probability and Statistics: 

Definitions of probability and sampling theorems, Conditional probability, Mean, median, mode and standard deviation, Random variables, Poisson, Normal and Binomial distributions, Linear regression analysis.

Numerical Methods: 

Numerical solutions of linear and non-linear algebraic equations. Integration by trapezoidal and Simpson’s rule. Single and multi-step methods for numerical solution of differential equations.

Process Calculations and Thermodynamics:

Steady and unsteady state mass and energy balances including multiphase, multicomponent, reacting and non-reacting systems. Use of tie components; recycle, bypass and purge calculations; Gibb’s phase rule and degree of freedom analysis. First and Second laws of thermodynamics. Applications of first law to close and open systems. Second law and Entropy. Thermodynamic properties of pure substances: Equation of State and residual properties, properties of mixtures: partial molar properties, fugacity, excess properties and activity coefficients; phase equilibria: predicting VLE of systems; chemical reaction equilibrium.

Fluid Mechanics and Mechanical Operations:

Fluid statics, Newtonian and non-Newtonian fluids, shell-balances including differential form of Bernoulli equation and energy balance, Macroscopic friction factors, dimensional analysis and similitude, flow through pipeline systems, flow meters, pumps and compressors, elementary boundary layer theory, flow past immersed bodies including packed and fluidized beds, Turbulent flow: fluctuating velocity, universal velocity profile and pressure drop. Particle size and shape, particle size distribution, size reduction and classification of solid particles; free and hindered settling; centrifuge and cyclones; thickening and classification, filtration, agitation and mixing; conveying of solids.

Heat Transfer: 

Steady and unsteady heat conduction, convection and radiation, thermal boundary layer and heat transfer coefficients, boiling, condensation and evaporation; types of heat exchangers and evaporators and their process calculations. Design of double pipe, shell and tube heat exchangers, and single and multiple effect evaporators.

Mass Transfer: 

Fick’s laws, molecular diffusion in fluids, mass transfer coefficients, film, penetration and surface renewal theories; momentum, heat and mass transfer analogies; stage-wise and continuous contacting and stage efficiencies; HTU & NTU concepts; design and operation of equipment for distillation, absorption, leaching, liquid-liquid extraction, drying, humidification, dehumidification and adsorption.

Chemical Reaction Engineering: 

Theories of reaction rates; kinetics of homogeneous reactions, interpretation of kinetic data, single and multiple reactions in ideal reactors, non-ideal reactors; residence time distribution, single parameter model; non-isothermal reactors; kinetics of heterogeneous catalytic reactions; diffusion effects in catalysis.

Instrumentation and Process Control: 

Measurement of process variables; sensors, transducers and their dynamics, process modeling and linearization, transfer functions and dynamic responses of various systems, systems with inverse response, process reaction curve, controller modes (P, PI, and PID); control valves; analysis of closed loop systems including stability, frequency response, controller tuning, cascade and feed forward control.

Plant Design and Economics: 

Principles of process economics and cost estimation including depreciation and total annualized cost, cost indices, rate of return, payback period, discounted cash flow, optimization in process design and sizing of chemical engineering equipments such as compressors, heat exchangers, multistage contactors.

Chemical Technology: 

Inorganic chemical industries (sulfuric acid, phosphoric acid, chlor-alkali industry), fertilizers (Ammonia, Urea, SSP and TSP); natural products industries (Pulp and Paper, Sugar, Oil, and Fats); petroleum refining and petrochemicals; polymerization industries (polyethylene, polypropylene, PVC and polyester synthetic fibers).


  • Structural Engineering
  • Mechanics
  • Structural Analysis
  • Concrete Structures
  • Steel Structures
  • Geotechnical Engineering
  • Soil Mechanics
  • Foundation Engineering
  • Water Resources Engineering
  • Fluid Mechanics and Hydraulics
  • Hydrology
  • Irrigation

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