Graduate Aptitude Test in Engineering (GATE) is a kind of examination that basically tests the thorough understanding and the calibre of students of various subjects that are taught to undergraduates in engineering. GATE is conducted jointly by the Indian Institute of Science and seven Indian Institutes of Technologies on behalf of the National Coordination Board – GATE, Department of Higher Education, Ministry of Human Resources Development , Government of India.
Eligibility for GATE Chemical Engineering Exam
 Indian Nationals having valid proof can apply online for the exam.
 Candidates from Nepal, Ethiopia, Bangladesh, Singapore, United Arab Emirates and Sri Lanka can apply for the exam.
 Candidates who have Bachelor’s degree in Engineering/ Technology (4 years after 10+2 or 3 years after B.Sc./ Diploma in Engineering/ Technology) and those who are in the final year of such programs.
 There is no age limit for appearing in GATE Examination.
CutOff for GATE Chemical Engineering Exam
Year  General  OBC  SC/ST/PH 
2017  44.3  39.8  29.5 
2016  29.7  33.1  22 
2015  27.5  24.77  18.34 
2014  35.14  23.43  31.62 
Syllabus for GATE Chemical Engineering Exam
Engineering Mathematics
Linear Algebra: Vector algebra, Matrix algebra, systems of linear equations, a rank of a matrix, eigenvalues and eigenvectors. Calculus: Functions of single variable, limits, continuity and differentiability, mean value theorem, chain rule, partial derivatives, maxima and minima, gradient, divergence and curl, directional derivatives. Integration, Line, surface and volume integrals. Theorems of Stokes, Gauss, and Green. Differential Equations: First order linear and nonlinear differential equations, higher order linear ODEs with constant coefficients. Partial differential equations and separation of variables methods. Special Topics: Fourier Series, Laplace Transforms, Numerical methods for linear and nonlinear algebraic equations, Numerical integration and differentiation. Complex variables: Complex number, polar form of a 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. 
Process Calculations and Thermodynamics: Laws of conservation of mass and energy, recycle, bypass and purge calculations, laws of thermodynamics, laws of application to close and open systems, Thermodynamic properties of pure substances, phase equilibria. 
Heat Transfer: Conduction, convection, and radiation, heat transfer coefficients, steady and unsteady heat conduction, boiling, condensation, evaporation, types of heat exchangers 
Fluid Mechanics and Mechanical Operations: Fluid statics, Newtonian and nonNewtonian fluids, Bernoulli equation, dimensional analysis, shell balances, flow through pipe, elementary boundary layer theory, size reduction, size separation, hindered settling, centrifuge, and cyclones, conveying of solids 
Mass Transfer: Fick’s laws, mass transfer coefficients, penetration, momentum, heat & mass transfer, HTU & NTU concepts design, absorption, leaching, liquidliquid extraction, drying, humidification, dehumidification. 
Chemical reactions
Chemical Technology: Inorganic chemical industries, natural products industries (Sugar, Oil, and Fats), petroleum refining. Polymerization industries, PVC and polyester synthetic fibers, sulphuric acid, NaOH, fertilizers (Ammonia, Urea) 
Instrumentation and process control
Plant design and Economics Apart from domain knowledge, the questions are asked from Engineering Mathematics & Quantitative Aptitude. The Mathematics section will include the questions from – Complex Variables, Probability, and Statistics. Also from, Differential Equations, Functions, Integrals, Surface and volumes, Stokes, Gauss Theorem. 
GENERAL APTITUDE Verbal Ability and Numerical Ability 
GATE Chemical Engineering Exam Pattern
Feature  Description 
Exam Duration  3 hours (180 minutes) 
Number of Questions Asked  65 
Total Marks  100 
Question Types  Two types of questions asked:
1. Multiple Choice Questions (MCQ) 2. Numerical Answer Type (NAT) Questions 
Marking Scheme  For 1mark MCQs, 1/3 mark will be deducted for every incorrect attempt.
In case of 2mark MCQs, the candidate will be penalised 2/3 mark for wrong attempt For questions that aren’t attempted, zero marks will be awarded. There is no negative marking for numerical answer type (NAT) questions. 
Sections  The question paper of GATE will consist of three sections:
General Aptitude* Engineering Mathematics (for XL papers it is Chemistry)* Subjectspecific section 
General Aptitude: Each paper will include a mandatory General Aptitude (GA) section comprising 10 questions. 5 of these questions will carry 1mark each, while the remaining 5 will each carry 2 marks, for a total of 15 marks.
GATE chemical engineering Exam Pattern: Key Highlights
 GATE has become a computerbased test that will be conducted in online mode
 GATE question paper will consist of two question types: multiple choice questions (MCQs) and Numerical Answer Type (NAT) questions
 The questions will be displayed on a computer screen randomly
 In case of MCQs, the candidate needs to select the correct answer, while for numerical answer type, the candidate must enter the numerical answer using a mouse and virtual keyboard ( the keyboard attached to the computer will be disabled)
 The candidate will have to complete the test in 3 hours. After the allotted three hours, the screen will automatically close down and no further action will be possible.
 During the exam, each candidate will be provided with a scribble pad where the candidate can do all his rough work.
 Each question paper will contain questions related to General Aptitude (GA) in addition to subjectspecific questions.
The questions that will be asked may be designed to test the following abilities of the candidate:
 Recall: Questions in this category are related to facts, principles, formulae or laws of the discipline of the paper. The aim is to test the memory and computation skills of the candidate.
 Comprehension: These questions test the candidate’s basic understanding of his/her chosen field. The candidate is required to draw simple conclusions from fundamental ideas.
 Application: To answer questions in this category, the candidate has to rely on his/her computational and logical reasoning skills.
 Analysis and synthesis: These questions are accompanied by data, diagrams, and images. The candidate has to analyse the information contained in them to find the answers.
GATE CHEMICAL ENGINEERING PREPARATION TIPS
1. To start with, candidates must be aware of the GATE exam pattern for chemical engineering completely
 It consists of 65 questions out of which 35 questions are of 2 marks and 30 questions are of 1 mark with a total of 100 marks. Candidates must know that there are only two types of questions, multiple choice questions and numerical answer type.
 They should be aware that there will be 2/3^{rd} negative marking in 2 markers and 1/3^{rd} negative marking in 1 markers whereas there is no negative marking in Numerical answer type questions hence only they can get the maximum numbers in the test.
2. Know the syllabus of chemical engineering and the weightage
 It is suggested that the candidate goes through the complete syllabusbefore starting the preparation. Match your knowledge with the exam syllabus and plan your preparation with known subjects.
 Highlight the important topics in the syllabus based upon the previous year papers and focus more on these topics during the course of your preparation.
3. Choose good books& study materials related to chemical engineering for the preparation
 Selection of appropriate and concise study material is very important before starting the preparation.
 Read at one book apart from the study material which is provided by your institution and your class notes.
 Nowadays the whole package is available online in the form of video lectures, course materials PDF, so you can pursue best study material.
4. Study smartly during the preparation
 Analyse important topics and pattern of questions from the previous year papers which have been provided with for reference.
 Prepare each topic in three steps. Understand the concept, practice related questions and revise regularly. This will help you to analyse your preparation and also boost your confidence.
 Most of the questions are conceptual & numerical, so you must try to improve your solving ability and time management to score a good rank.
5. Prepare the study plan to complete the syllabus
 The first step in the preparation is to start with easy subject and important one that has been mentioned below. Segregate whole subject into smaller topics and prepare topic wise
 After completing the subject, make short notes for that subject which should include definitions, important formulas etc. This will help during the time of revision.
 Clearing all the doubts during the preparation is essential.
 Identify weak areas while practising tests and try to revise and practice those topics.
6. Proper revision plan
 It is not just sufficient enough to prepare revision notes, but also to revise them regularly.
 Read the revision notes on a weekly basis to recall the concepts of prepared subjects.
 Each time you revise the same topic/ subject, your revision time will reduce to recall the concepts.
7. Mock tests and practice papers
 Mock tests play an important role.
 Firstly, it gives you an exam like interface. This is very important for any aspirant, to have idea and thorough practice on exam like interface.
 They provide All India ranking, so you know where you stand.
 Test analysis about how you performed in exam and how toppers have performed, which helps you to analyse and understand how much more preparation is required and on which area.
 You also get to keep a check on which question was easy and you couldn’t attempt, but attempted a tough question which was expected to be left. And how much extra time have you given to that particular question.
 Comprehensive explanation to every single question coupled with smart tricks/intuitive approach in the form of text, Images or both.
 From mock tests, you get to know your strength and weaknesses in a welldefined manner.
 Tests in general are important. They help not only in the assessment of your preparation for exams, but also regular test attempts help you memorize better.
Important Topics and Books for GATE Chemical Engineering
S.No  Sections  Important Topics  Books and Authors 
1.  Engineering Mathematics  Eigen Values & Eigenvectors
Rank of Matrix Limit Continuity Maxima & Minima Differential Equations Laplace Equation Probability, Mean, Median Numerical Solution of Differential Equations 
B.S. Grewal 
2.  Chemical Engineering for GATE  Classifications of Chemical Reactions
Design of Isothermal IDEAL reactors Design of NonIsothermal IDEAL reactors Modelling of NonIDEAL reactors Introductions to Heterogenous Reactions System Solid Catalysed Reactions 
Ram Prasad 
3.  Basic Principles and Calculations in Chemical Engineering  –  David. M. Himmelblau 
Thermodynamics  First law of Thermodynamics
Second law of Thermodynamics Principle of Entropy Properties of Pure Substances Chemical Reaction Equilibrium Solutions Thermodynamics 
A Textbook of Chemical Engineering Thermodynamics – K. V. Narayanan.
An Introduction to Chemical Engineering ThermodynamicsJ. M. Smith, H. C. Van Ness, M. M. Abbott


4.  Fluid Mechanics  Properties of Fluid
Fluid Kinematics & Fluid Dynamics Application of Bernoulli’s Equations Flow Meters Flow through Pipes Fluid Machinery Characterization of Particulates Screen Analysis Fluidization 
Introduction To Fluid Mechanics (English) 7th Edition (paperback) … by Yunus A. Cengel, John M. Cimbala
Introduction to Fluid Mechanics Fox and Mc donald

5.  Mechanical Operation  –  Unit Operations of Chemical Engineering Warren McCabe, Julian Smith, Peter Harriott
Mechanical Operation For Chemical Engineering by Narayanan C. M. & Bhattacharyya B. C 
6.  Heat Transfer  Modes of Heat Transfer
Conduction & Convection in Fins Temperature Distribution in Slab/ Cylinder/ Sphere Convective Heat Transfer & Application of Newton’s Cooling Law Radiation Heat Transfer Boiling & Condensation Design of Heat Exchanging Equipment 
Heat Transfer Binay. K. Dutta
Heat Transfer – Jack Philip Holman

7.  Mass Transfer  Types of Mass Transfer
Interphase Mass Transfer Mass Transfer Equipments Mass Transfer Operations Design of Mass Transfer Equipments HTU & NTU Concepts 
Mass Transport Phenomena Christie J. Geankoplis
Mass Transfer OperationsRobert E. Treybal 
8.  Chemical Reaction Engineering  · –  Fogler & Gurmen
Chemical Reaction Engineering Octave Levenspiel 
9.  Process Dynamics and Control  Introduction to Laplace to Solve Differential Equations
Types of System Transfer Functions Responses of Systems for Different Type of Input Functions Open Loop and Closed Loop System Servo and Regulator Problems Types of Feedback Controller Design of Feedback & Feed Forward Control System 
Process Systems Analysis and Control – Donald R. Coughanowr & Steven E. LeBlanc 
10.  Chemical Process Control  Basic Chemical Calculations
Material Balance with and without Chemical Reaction Recycle and Bypass Operations Energy Balance Combustions Calculation 
An Introduction To Theory And Practice Stephanopoulos.G
Process dynamics and control – Seborg, D.E., Edgar, T.F. and Mellichamp, D.A Plant design and Economics Peters M. S. and Timmerhaus K. D 
11.  Chemical Technology  Fertilizer Industries
Sugar Industries Paper & Pulp Industries Petrochemical Polymer 
Dryden’s Outlines of Chemical Technology by Gopala Rao M. and Marshall S 
12.  Transport Phenomena  –  R. Byron Bird, Warren E. Stewart, Edwin N. Lightfoot 
PAST YEAR PAPERS
GATE Chemical Engineering Exam 2013
GATE Chemical Engineering Exam 2014
GATE Chemical Engineering Exam 2015
GATE Chemical Engineering Exam 2016
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