GATE Engineering Sciences Syllabus 2025: Check Topics, Weightage, Download PDF

Updated By Rupsa on 01 Oct, 2024 15:51

IIT Roorkee has released the GATE 2025 syllabus PDF for all 30 papers. There have been no changes in the GATE syllabus 2025. Access the GATE syllabus 2025 PDF from this page.

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GATE 2025 Syllabus for XE

Engineering Sciences (XE) is one of the 30 subject papers conducted in the GATE examination. IIT Roorkee has released the GATE Engineering Sciences syllabus 2025 at gate2025.iitr.ac.in. The direct link to download the GATE 2025 XE syllabus pdf has been provided on this page. GATE syllabus 2025 for XE consists of three primary sections: General Aptitude, Engineering Mathematics, and Engineering Sciences subjects. Candidates planning to take the GATE XE exam 2025 should thoroughly review the syllabus, weightage, and other important details to prepare effectively. Check below the details of the GATE 2025 Engineering Sciences syllabus for all sections.

Also Check:

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GATE Textile Engineering and Fibre Science Syllabus 2025GATE Petroleum Engineering Syllabus 2025GATE Geomatics Engineering Syllabus 2025

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GATE Engineering Sciences 2025 Syllabus Topics

The GATE 2025 Engineering Sciencess syllabus includes 8 subjects. Engineering Mathematics is a common section worth 15 marks that all candidates must take. Apart from that, candidates need to choose any two subjects from the remaining 7 options, with each subject carrying 35 marks. This accounts to a total 70 marks. Additionally, there is a mandatory General Aptitude section worth 15 marks. Check below the detailed GATE Engineering Sciences syllabus 2025, starting from GATE XE-A to XE-G.

1. GATE 2025 XE-A (Engineering Mathematics) Syllabus

Section

Topics

Section 1: Linear Algebra

- Algebra of real matrices: Determinant, inverse and rank of a matrix

- System of linear equations (conditions for unique solution, no solution, and infinite solutions)

- Eigenvalues and eigenvectors of matrices

- Properties of eigenvalues and eigenvectors of symmetric matrices

- Diagonalization of matrices

- Cayley-Hamilton Theorem

Section 2: Calculus

Functions of Single Variable:

- Limit, indeterminate forms, and L'Hospital's rule

- Continuity and differentiability

- Mean value theorems

- Maxima and minima

- Taylor's theorem

- Fundamental theorem and mean value theorem of integral calculus

- Evaluation of definite and improper integrals

- Applications of definite integrals to evaluate areas and volumes (rotation of a curve about an axis)

Functions of Two Variables:

- Limit, continuity, and partial derivatives

- Directional derivative

- Total derivative

- Maxima, minima, and saddle points

- Method of Lagrange multipliers

- Double integrals and their applications

Sequences and Series:

- Convergence of sequences and series

- Tests of convergence of series with non-negative terms (ratio, root, and integral tests)

- Power series

- Taylor's series

- Fourier Series of functions of period 2π

Section 3: Vector Calculus

- Gradient, divergence, and curl

- Line integrals and Green's theorem

Section 4: Complex Variables

- Complex numbers

- Argand plane and polar representation of complex numbers

- De Moivre’s theorem

- Analytic functions

- Cauchy-Riemann equations

Section 5: Ordinary Differential Equations

- First-order equations (linear and nonlinear)

- Second-order linear differential equations with constant coefficients

- Cauchy-Euler equation

- Second-order linear differential equations with variable coefficients

- Wronskian

- Method of variation of parameters

- Eigenvalue problem for second-order equations with constant coefficients

- Power series solutions for ordinary points

Section 6: Partial Differential Equations

- Classification of second-order linear partial differential equations

- Method of separation of variables: One-dimensional heat equation and two-dimensional Laplace equation

Section 7: Probability and Statistics

- Axioms of probability

- Conditional probability

- Bayes' Theorem

- Mean, variance, and standard deviation of random variables

- Binomial, Poisson, and Normal distributions

- Correlation and linear regression

Section 8: Numerical Methods

- Solution of systems of linear equations using LU decomposition, Gauss elimination method

- Lagrange and Newton's interpolations

- Solution of polynomial and transcendental equations by Newton-Raphson method

- Numerical integration by trapezoidal rule and Simpson's rule

- Numerical solutions of first-order differential equations by explicit Euler's method

2. GATE 2025 XE-B (Fluid Mechanics) Syllabus 

Section

Topics

Sub-Topics

Section 1: Flow and Fluid Properties

Fluid Properties

- Density, viscosity, surface tension

- Relationship between stress and strain-rate for Newtonian fluids

Classification of Flows

- Viscous vs inviscid flows

- Incompressible vs compressible flows

- Internal vs external flows

- Steady vs unsteady flows

- Laminar vs turbulent flows

- 1-D, 2-D, 3-D flows

- Newtonian vs non-Newtonian fluid flow

Hydrostatics

- Buoyancy

- Manometry

- Forces on submerged bodies

- Stability

Section 2: Kinematics of Fluid Motion

Descriptions of Fluid Motion

- Eulerian and Lagrangian descriptions

- Concept of local, convective, and material derivatives

Fluid Lines

- Streamline

- Streakline

- Pathline

- Timeline

Section 3: Integral Analysis for a Control Volume

Reynolds Transport Theorem (RTT)

- Conservation of mass

- Conservation of linear and angular momentum

Section 4: Differential Analysis

Equations of Motion

- Differential equations for incompressible flows

- Inviscid flows (Euler equations)

- Viscous flows (Navier-Stokes equations)

Fluid Concepts

- Fluid rotation

- Vorticity

- Stream function

- Circulation

Exact Solutions

- Navier-Stokes solutions for Couette flow

- Poiseuille flow

- Thin film flow

Section 5: Dimensional Analysis

Similarity Concepts

- Geometric, kinematic, and dynamic similarity

Buckingham Pi Theorem

- Applications of Buckingham Pi theorem

Non-dimensional Parameters

- Reynolds number

- Froude number

- Mach number

Section 6: Internal Flows

Pipe Flow

- Fully developed pipe flow

Empirical Relations

- Laminar and turbulent flows

- Friction factor

- Darcy-Weisbach relation

- Moody’s chart

- Major and minor losses

Section 7: Bernoulli’s Equation and its Applications, Potential Flows

Bernoulli’s Equation

- Assumptions

- Applications

Flow Measurements

- Venturi meter

- Pitot-static tube

- Orifice meter

Potential Flows

- Velocity potential function

- Uniform flow

- Source

- Sink

- Vortex

- Superposition of flow past simple geometries

Section 8: External Flows

Prandtl Boundary Layer Equations

- Concept and assumptions

Boundary Layer Characteristics

- Boundary layer thickness

- Displacement thickness

- Momentum thickness

- Boundary layer separation

Forces on Bodies

- Streamlined and bluff bodies

- Drag and lift forces

3. GATE 2025 XE-C (Materials Science) Syllabus 

Section

Topics

Sub-Topics

1: Classification and Structure of Materials

Classification of Materials

- Metals

- Ceramics

- Polymers

- Composites

Nature of Bonding in Materials

- Metallic, ionic, covalent, and mixed bonding

Structure of Materials

- Fundamentals of crystallography

- Symmetry operations

- Crystal systems

- Bravais lattices

- Unit cells

- Primitive cells

- Crystallographic planes and directions

- Structures of metals, ceramics, polymers, amorphous materials, and glasses

Defects in Crystalline Materials

- 0-D, 1-D, and 2-D defects

- Vacancies

- Interstitials

- Solid solutions in metals and ceramics

- Frenkel and Schottky defects

- Dislocations

- Grain boundaries

- Twins

- Stacking faults

- Surfaces and interfaces

2: Thermodynamics, Kinetics and Phase Transformations

Thermodynamics

- Extensive and intensive thermodynamic properties

- Laws of thermodynamics

Phase Equilibria

- Phase rule

- Phase diagrams (unary and binary)

Basic Electrochemistry

- Fundamental electrochemical principles

Reaction Kinetics

- Fundamentals of diffusion

- Fick’s laws, solutions, and applications

Phase Transformations

- Solidification of pure metals and alloys

- Nucleation and growth

- Diffusional solid-state phase transformations (precipitation and eutectoid)

- Martensitic transformation

3: Properties and Applications of Materials

Mechanical Properties

- Stress-strain response (elastic, anelastic, and plastic deformation)

Electronic Properties

- Free electron theory

- Fermi energy

- Density of states

- Elements of band theory

- Semiconductors

- Hall effect

- Dielectric, piezoelectric, and ferroelectric behaviour

Magnetic Properties

- Origin of magnetism

- Para-, dia-, ferro-, and ferri-magnetism

Thermal Properties

- Specific heat

- Heat conduction

- Thermal diffusivity

- Thermal expansion

- Thermoelectricity

Optical Properties

- Refractive index

- Absorption and transmission of electromagnetic radiation

Applications

- Examples of materials exhibiting mechanical, electronic, magnetic, thermal, and optical properties, and their common applications

4: Characterization and Measurements of Properties

Characterization Techniques

- X-ray diffraction

- Spectroscopic techniques: UV-Vis, IR, Raman

- Optical and electron microscopy

Measurements

- Composition analysis in electron microscopes

- Tensile test

- Hardness measurement

- Electrical conductivity, carrier mobility and concentrations

- Thermal analysis: thermogravimetry and calorimetry

5: Processing of Materials

Heat Treatment and Processing

- Heat treatment of ferrous and aluminium alloys

- Preparation of ceramic powders

- Sintering

Thin Film Deposition

- Evaporation and sputtering techniques

- Chemical vapour deposition

- Thin film growth phenomena

6: Degradation of Materials

Material Degradation

- Corrosion and its prevention

- Embrittlement of metals

- Polymer degradation

4. GATE 2025 XE-D (Solid Mechanics) Syllabus

Section

Topics

Sub-Topics

1: Mechanics of Rigid Bodies

Equivalent Force Systems

- Free-body diagrams

- Equilibrium equations

Analysis of Structures

- Determinate trusses

- Frames

- Friction

- Principle of minimum potential energy

Dynamics of Rigid Bodies

- Particle kinematics and dynamics

- Planar motion of rigid bodies

- Law of conservation of energy

- Law of conservation of momentum

2: Mechanics of Deformable Bodies

Stresses and Strains

- Transformation of stresses and strains

- Principal stresses and strains

- Mohr’s circle for plane stress and plane strain

Material Behavior

- Generalized Hooke’s Law

- Elastic constants

- Thermal stresses

- Theories of failure

Structural Analysis

- Axial force

- Shear force

- Bending moment diagrams

- Axial, shear, and bending stresses

- Combined stresses

- Deflection (for symmetric bending)

- Torsion in circular shafts

- Thin walled pressure vessels

- Energy methods (Castigliano’s theorems)

- Euler buckling

3: Vibrations

Free Vibrations

- Undamped single degree of freedom systems

5. GATE 2025 XE-E (Thermodynamics) Syllabus

Section

Topics

Sub-Topics

1: Basic Concepts

Fundamental Concepts

- Continuum and macroscopic approach

- Thermodynamic systems (closed and open)

- Thermodynamic properties and equilibrium

State and Processes

- State of a system

- State postulate for simple compressible substances

- State diagrams

- Paths and processes on state diagrams

Heat and Work

- Concepts of heat and work

- Different modes of work

- Zeroth law of thermodynamics

- Concept of temperature

2: First Law of Thermodynamics

Energy Concepts

- Concept of energy and various forms of energy

- Internal energy

- Enthalpy

- Specific heats

Application

- First law applied to elementary processes

- Closed systems

- Control volumes

- Steady and unsteady flow analysis

3: Second Law of Thermodynamics

Basic Principles

- Limitations of the first law

- Concepts of heat engines and heat pumps/refrigerators

- Kelvin-Planck and Clausius statements and their equivalence

Processes and Cycles

- Reversible and irreversible processes

- Carnot cycle and Carnot principles/theorems

- Thermodynamic temperature scale

- Clausius inequality and entropy

Entropy

- Microscopic interpretation of entropy

- Principle of increase of entropy

- T-s diagrams

- Second law analysis of control volume

- Availability and irreversibility

- Third law of thermodynamics

4: Properties of Pure Substances

Phase Behavior

- Thermodynamic properties in solid, liquid, and vapor phases

- PvT behavior of simple compressible substances

- Phase rule

Equations of State

- Thermodynamic property tables and charts

- Ideal and real gases

- Ideal gas equation of state

- Van der Waals equation of state

- Law of corresponding states

- Compressibility factor and generalized compressibility chart

5: Thermodynamic Relations

Thermodynamic Functions

- TdS relations

- Helmholtz and Gibbs functions

- Gibbs relations

- Maxwell relations

- Joule-Thomson coefficient

- Coefficient of volume expansion

Relations and Equations

- Adiabatic and isothermal compressibilities

- Clapeyron and Clapeyron-Clausius equations

6: Thermodynamic Cycles

Cycles and Processes

- Carnot vapor cycle

- Ideal Rankine cycle

- Rankine reheat cycle

- Air-standard Otto cycle

- Air-standard Diesel cycle

- Air standard Brayton cycle

- Vapor-compression refrigeration cycle

7: Ideal Gas Mixtures

Mixing Laws and Properties

- Dalton’s and Amagat’s laws

- Properties of ideal gas mixtures

- Air-water vapor mixtures

- Simple thermodynamic processes involving them

Humidity and Temperature

- Specific and relative humidities

- Dew point and wet bulb temperature

- Adiabatic saturation temperature

- Psychrometric chart

6. GATE 2025 XE-F (Polymer Science and Engineering) Syllabus

Section

Topics

Sub-Topics

1: Chemistry of High Polymers

Basic Concepts

- Monomers

- Functionality

- Degree of polymerizations

- Classification of polymers

- Glass transition

- Melting transition

- Criteria for rubberiness

Polymerization Methods

- Addition and condensation

- Kinetics

- Metallocene polymers

- Newer methods of polymerization

- Copolymerization

- Monomer reactivity ratios and significance

Copolymerization Types

- Random, alternating, azeotropic

- Block and graft copolymers

- Techniques: bulk, solution, suspension, emulsion

Morphology

- Concept of intermolecular order

- Amorphous, crystalline, orientation states

- Factors affecting crystallinity

- Crystalline transition

- Effect on polymer properties

2: Polymer Characterization

Molecular Weight

- Solubility and swelling

- Molecular weight distribution

- Average molecular weight: number, weight, viscosity, Z-average

- Polymer crystallinity

Analytical Techniques

- IR, XRD

- Thermal: DSC, DMTA, TGA

- Microscopic: optical, electronic

- GPC

- Mooney viscosity

3: Synthesis, Manufacturing and Properties

Types of Polymers

- Commodity and general-purpose thermoplastics: PE, PP, PS, PVC, Polyesters, Acrylic, PU polymers

- Engineering Plastics: Nylon, PC, PBT, PSU, PPO, ABS, Fluoropolymers

- Thermosetting polymers: Polyurethane, PF, MF, UF, Epoxy, Unsaturated polyester, Alkyds

- Natural and synthetic rubbers: NR, SBR, Nitrile, CR, CSM, EPDM, IIR, BR, Silicone, TPE

- Speciality plastics: PEK, PEEK, PPS, PSU, PES

- Biopolymers: PLA, PHA/PHB

4: Polymer Blends and Composites

Blends and Composites

- Difference between blends and composites

- Significance

- Choice of polymers for blending

- Miscibility: miscible and immiscible blends

- Thermodynamics

- Phase morphology

- Polymer alloys, polymer eutectics

- Plastic-plastic, rubber-plastic, and rubber-rubber blends

- FRP, particulate, long and short fibre reinforced composites

- Polymer reinforcement, reinforcing fibres (natural and synthetic)

- Base polymer for reinforcement

- Ingredients/recipes for reinforced polymer composite

5: Polymer Technology

Compounding and Ingredients

- Need and significance of polymer compounding

- Compounding ingredients: antioxidants, light stabilizers, UV stabilizers, lubricants, processing aids, impact modifiers, flame retardants, antistatic agents

- PVC stabilizers and plasticizers

- Function of each ingredient

Processing Techniques

- Cross-linking and vulcanization

- Vulcanization kinetics

6: Polymer Rheology

Flow Properties

- Flow of Newtonian and non-Newtonian fluids

- Flow equations

- Dependence of shear modulus on temperature

- Molecular/segmental deformations

Rheological Measurements

- Measurements: capillary, rotating, parallel plate, cone-plate rheometer

- Visco-elasticity: creep and stress relaxation

- Mechanical models

- Control of rheological characteristics

7: Polymer Processing

Molding and Shaping

- Compression molding

- Transfer molding

- Injection molding

- Blow molding

- Reaction injection molding

- Filament winding

- SMC, BMC, DMC

- Extrusion

- Pultrusion

- Calendaring

- Rotational molding

- Thermoforming

- Powder coating

- Rubber processing: two-roll mill, internal mixer, twin screw extruder

8: Polymer Testing

Mechanical Properties

- Static and dynamic tensile

- Flexural, compressive, abrasion

- Endurance, fatigue, hardness

- Tear, resilience, impact, toughness

Conductivity and Thermal Properties

- Thermal and electrical conductivity

- Dielectric constant, dissipation factor, power factor

- Electric resistance

- Surface resistivity, volume resistivity

- Swelling, ageing resistance

- Environmental stress cracking resistance

- Limiting oxygen index

Thermal Properties

- Heat deflection temperature

- Vicat softening temperature

- Brittleness temperature

- Glass transition temperature

- Coefficient of thermal expansion

- Shrinkage

Optical Properties

- Refractive index

- Luminous transmittance and haze

- Melt flow index

9: Polymer Recycling and Waste Management

Recycling Techniques

- Polymer waste and environmental impact

- Sources

- Identification and separation techniques

- Recycling classification

- Recycling thermoplastics, thermosets, and rubbers

- Applications of recycled materials

- Life cycle assessment of polymer products (e.g., PET bottles, packaging bags)

7. GATE 2025 XE-G (Food Technology) Syllabus

Section

Topics

Sub-Topics

1: Food Chemistry and Nutrition

Carbohydrates

- Structure and functional properties

- Mono-, oligo-, & poly- saccharides

- Starch, cellulose, pectic substances, dietary fiber

- Gelatinization, retrogradation

Proteins

- Classification and structure

- Biochemical changes in post mortem

- Tenderization of muscles

Lipids

- Classification and structure

- Rancidity

- Polymerization, polymorphism

Pigments

- Carotenoids

- Chlorophylls

- Anthocyanins

- Tannins

- Myoglobin

Food Flavours

- Terpenes

- Esters

- Aldehydes

- Ketones

- Quinines

Enzymes

- Specificity

- Simple and inhibition kinetics

- Coenzymes

- Enzymatic and non-enzymatic browning

Nutrition

- Balanced diet

- Essential amino acids, fatty acids

- Protein efficiency ratio

- Vitamins: water soluble, fat soluble

- Role of minerals

- Co-factors

- Anti-nutrients

- Nutraceuticals

- Nutrient deficiency diseases

Chemical and Biochemical Changes

- Changes occurring in foods during processing

2: Food Microbiology

Characteristics of Microorganisms

- Morphology of bacteria, yeast, mold, actinomycetes

- Spores and vegetative cells

Microbial Growth

- Growth and death kinetics

- Serial dilution technique

- Gram-staining

Food Spoilage

- Spoilage microorganisms in milk, fish, meat, egg, cereals, and their products

Toxins from Microbes

- Pathogens and non-pathogens: Staphylococcus, Salmonella, Shigella, Escherichia, Bacillus, Clostridium, Aspergillus genera

Fermented Foods and Beverages

- Curd, yoghurt, cheese, pickles, soya-sauce, sauerkraut, idli, dosa, vinegar, alcoholic beverages, sausage

3: Food Products Technology

Processing Principles

- Thermal processing

- Chilling, freezing

- Dehydration

- Preservatives and food additives

- Irradiation

- Fermentation

- Hurdle technology

- Intermediate moisture foods

Food Packaging and Storage

- Packaging materials

- Aseptic packaging

- Controlled and modified atmosphere storage

Cereal Processing

- Milling of rice, wheat, maize

- Parboiling of paddy

- Bread, biscuits, extruded products, ready-to-eat breakfast cereals

Oil Processing

- Expelling

- Solvent extraction

- Refining

- Hydrogenation

Fruits and Vegetables Processing

- Extraction, clarification

- Concentration and packaging of fruit juice, jam, jelly, marmalade, squash

- Candies, tomato sauce, ketchup, puree, potato chips, pickles

Plantation Crops Processing

- Tea, coffee, cocoa

- Spice processing

- Extraction of essential oils and oleoresins from spices

Milk and Milk Products Processing

- Pasteurization, sterilization

- Cream, butter, ghee, ice cream, cheese, milk powder

Processing of Animal Products

- Drying, canning, freezing of fish and meat

- Production of egg powder

Waste Utilization

- Pectin from fruit wastes

- Uses of by-products from rice milling

Food Standards and Quality

- FPO, PFA, A-Mark, ISI

- HACCP

- Food plant sanitation

- Cleaning in Place (CIP)

4: Food Engineering

Mass and Energy Balance

- Mass and energy balance principles

Momentum Transfer

- Flow rate and pressure drop relationships for Newtonian fluids

- Reynolds number

Heat Transfer

- Conduction

- Convection

- Radiation

- Heat exchangers

Mass Transfer

- Molecular diffusion

- Fick's law

- Conduction and convective mass transfer

- Permeability through single and multilayer films

Mechanical Operations

- Size reduction of solids

- High pressure homogenization

- Filtration

- Centrifugation

- Settling

- Sieving

- Mixing & agitation of liquid

Thermal Operations

- Thermal sterilization

- Evaporation of liquid foods

- Hot air drying of solids

- Spray and freeze-drying

- Freezing and crystallization

Mass Transfer Operations

- Psychometric

- Humidification

- Dehumidification

8. GATE 2025 XE-H (Atmospheric and Oceanic Sciences) Syllabus

Section

Topics

Sub-Topics

A: Atmospheric Science

Vertical Structure and Composition

- Layers of the atmosphere

- Composition of atmospheric gases

Blackbody Radiation and Radiation Balance

- Blackbody radiation principles

- Radiation balance in the atmosphere

Modes of Heat Transfer

- Conduction

- Convection

- Radiation

Greenhouse Effect

- Mechanism

- Impact on climate

Cloud Types

- Classification

- Formation processes

Laws of Thermodynamics

- First law

- Second law

- Third law

Gas Laws

- Boyle’s Law

- Charles’s Law

- Ideal Gas Law

Hydrostatic Equation

- Hydrostatic equilibrium

- Application in atmospheric science

Clausius-Clapeyron Equation

- Derivation

- Application to phase changes

Adiabatic Processes

- Adiabatic cooling and heating

- Dry and moist adiabatic lapse rates

Humidity in the Atmosphere

- Measurement

- Types: absolute, relative, specific humidity

Atmospheric Stability

- Stability criteria

- Types of atmospheric stability

Weather and Climate

- Distinction between weather and climate

- Factors influencing weather and climate

Navier-Stokes and Continuity Equations

- Fundamental equations

- Applications in atmospheric dynamics

Compressible and Incompressible Fluids

- Characteristics

- Differences and applications

Pressure Gradient, Centripetal, Centrifugal, and Coriolis Forces

- Pressure gradient force

- Centripetal force

- Centrifugal force

- Coriolis effect

Geostrophic, Gradient, and Cyclostrophic Balances

- Geostrophic balance

- Gradient balance

- Cyclostrophic balance

Circulations and Vorticity

- Atmospheric circulation patterns

- Vorticity and its significance

General Circulation of the Atmosphere

- Large-scale circulation patterns

- Zonal and meridional circulations

Broad Features of Indian Monsoons

- Seasonal variations

- Monsoon onset and withdrawal

Monsoon Depressions

- Formation

- Impact on weather

Tropical Convergence Zones

- Definition

- Role in global circulation

Tropical Cyclones

- Formation

- Structure

- Impacts and forecasting

B: Ocean Sciences

Vertical Profiles of Temperature and Salinity

- Measurement

- Effects on ocean circulation

Stability and Double Diffusion

- Stability in the ocean

- Double diffusion processes

Equation of State

- Thermodynamic equation of state for seawater

Equations for Conservation of Mass, Momentum, Heat, and Salt

- Fundamental equations

- Applications in oceanography

Inertial Currents

- Generation and characteristics

- Impact on ocean circulation

Geostrophic Motion

- Mechanism

- Relation to ocean currents

Air-Sea Surface Fluxes

- Heat fluxes

- Momentum fluxes

- Impact on climate

Wind-Driven Circulation

- Mechanism

- Ekman and Sverdrup transports

Storm Surges, Tides, Tsunamis, and Wind Waves

- Characteristics

- Formation

- Impact on coastal areas

Eddies and Gyres

- Types of eddies

- Major gyres in the ocean

Eastern and Western Boundary Currents

- Characteristics

- Examples: Gulf Stream, Kuroshio Current

Equatorial Currents

- Characteristics

- Importance for climate

Indian Ocean Current Systems

- Major currents

- Seasonal variations

Thermohaline Circulation

- Mechanism

- Role in global climate

Chemical Properties of Seawater

- Major and minor elements

- Ocean acidification

Biochemical Cycling of Nutrients

- Nutrient cycles

- Role in marine ecosystems

Trace Metals and Organic Matter

- Presence and significance

- Impact on marine life

Biological Pump

- Mechanism

- Impact on carbon sequestration

Primary and Secondary Biological Productivity

- Measurement

- Factors affecting productivity

Air-Sea Exchange of Biogenic Dissolved Gases

- Types of gases

- Exchange processes

Marine Ecology

- Marine ecosystems

- Interactions between organisms

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GATE XE Syllabus 2025 for General Aptitude

The GATE General Aptitude syllabus 2025 is a vital section of the GATE exam, common to all papers. Good performance in General Aptitude can significantly add to the candidate's overall GATE score, making it an important focus area for all aspirants. Here is a look at the GATE XE General Aptitude syllabus 2025.

Section

Topics

Spatial Aptitude

- Transformation of Shapes: Translation, Rotation, Scaling, Mirroring

- Paper Folding and Cutting: Patterns in 2 and 3 Dimensions

- Assembling and Grouping

Analytical Aptitude

- Logic: Deduction and Induction

- Analogy

- Numerical Relations and Reasoning

Quantitative Aptitude

- Data Interpretation: Data Graphs (Bar Graphs, Pie Charts, 2D and 3D Plots, Maps, Tables)

- Numerical Computation and Estimation: Ratios, Percentages, Powers, Exponents, Logarithms, Permutations, Combinations, Series

- Mensuration and Geometry

- Elementary Statistics and Probability

Verbal Aptitude

- Basic English Grammar: Tenses, Articles, Adjectives, Prepositions, Conjunctions, Verb-Noun Agreement, and Other Parts of Speech

- Basic Vocabulary: Words, Idioms, Phrases in Context

- Reading and Comprehension

- Narrative Sequencing

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GATE Engineering Sciences 2025 Syllabus PDF

If candidates are preparing for the GATE Engineering Sciences (XE) paper, then downloading the official syllabus PDF is the first step. Here is the GATE 2025 XE syllabus PDF link that provides a detailed outline of all the topics and subtopics they need to study for the exam. 

GATE XE Syllabus 2025 PDF Download Link

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GATE Engineering Sciences 2025 Syllabus Important Topics

While studying the GATE 2025 XE syllabus, focusing on the following topics can be particularly beneficial as they are frequently asked in the examination. 

Subject

Important Topics

XE-A: Engineering Mathematics

- Calculus: Differentiation, Integration, Differential Equations, Multiple Integrals

- Linear Algebra: Matrix Theory, Vector Spaces, Systems of Linear Equations

- Probability and Statistics: Probability Distributions, Statistical Inference, Regression and Correlation Analysis

- Numerical Methods: Numerical Solutions, Root Finding Algorithms, Numerical Integration

XE-B: Fluid Mechanics

- Fluid Properties: Viscosity, Density, Surface Tension

- Hydrostatics: Buoyancy, Manometry

- Fluid Flow Analysis: Reynolds Transport Theorem, Navier-Stokes and Euler Equations

- Dimensional Analysis: Buckingham Pi Theorem, Non-Dimensional Numbers

- Internal and External Flows: Pipe Flow, Bernoulli’s Equation Applications

XE-C: Materials Science

- Material Classification and Structure: Metals, Ceramics, Polymers, Composites, Crystallography

- Thermodynamics and Phase Transformations: Phase Diagrams, Diffusion, Solidification

- Properties of Materials: Mechanical, Thermal, Magnetic, Optical Properties

- Characterization Techniques: X-ray Diffraction, Spectroscopy, Mechanical Testing

XE-D: Solid Mechanics

- Mechanics of Rigid Bodies: Equilibrium, Free-Body Diagrams, Analysis of Trusses and Frames

- Mechanics of Deformable Bodies: Stress and Strain Analysis, Mohr’s Circle, Generalized Hooke’s Law

- Vibrations: Free Vibration of Single Degree of Freedom Systems

XE-E: Thermodynamics

- Basic Concepts: Thermodynamic Systems, Properties, Laws of Thermodynamics

- First Law of Thermodynamics: Energy, Internal Energy, Enthalpy, Steady and Unsteady Flow Analysis

- Second Law of Thermodynamics: Entropy, Carnot Cycle, Reversible and Irreversible Processes

- Thermodynamic Cycles: Carnot, Rankine, Otto, Diesel, Brayton Cycles

XE-F: Polymer Science and Engineering

- Chemistry of High Polymers: Polymerization Methods, Copolymerization, Morphology

- Polymer Characterization: Molecular Weight Distribution, Techniques (IR, XRD, DSC)

- Polymer Properties and Processing: Thermoplastics, Thermosets, Processing Techniques

- Polymer Testing and Recycling: Mechanical and Thermal Properties, Recycling

XE-G: Food Technology

- Food Chemistry and Nutrition: Carbohydrates, Proteins, Lipids, Vitamins, Minerals

- Food Microbiology: Microbial Growth, Spoilage, Toxins, Fermented Foods

- Food Products Technology: Processing Techniques, Packaging, Storage

- Food Engineering: Mass and Energy Balances, Heat and Mass Transfer Operations

XE-H: Atmospheric and Oceanic Sciences

- Atmospheric Science: Vertical Structure, Composition, Thermodynamics, Cloud Types, Monsoons

- Ocean Sciences: Temperature and Salinity Profiles, Ocean Circulation, Chemical Properties of Seawater

GATE XE 2025 Syllabus Topic-Wise Weightage (Expected)

Understanding the GATE 2025 XE syllabus weightage helps candidates plan their studies in an effective manner, focusing on the topics that are likely to be asked in the exam. By going through the high-weightage topics, candidates can improve their chances of scoring well in the GATE exam 2025. Here is the table outlining the expetced topic weightage of all subjects (XE-A to XE-G) in the GATE Engineering Sciences syllabus 2025:

Paper Code

Section

Topic

Expected Weightage of Questions

XE-A

Engineering Mathematics

Linear Algebra

15%

Calculus

20%

Vector Calculus

10%

Complex Variables

10%

Ordinary Differential Equations

10%

Partial Differential Equations

10%

Probability and Statistics

15%

Numerical Methods

10%

XE-B

Fluid Mechanics

Flow and Fluid Properties

15%

Kinematics of Fluid Motion

10%

Integral Analysis for a Control Volume

15%

Differential Analysis

15%

Dimensional Analysis

10%

Internal Flows

10%

Bernoulli’s Equation and its Applications, Potential Flows

15%

External Flows

10%

XE-C

Materials Science

Classification and Structure of Materials

15%

Thermodynamics, Kinetics and Phase Transformations

20%

Properties and Applications of Materials

20%

Characterization and Measurements of Properties

15%

Processing of Materials

15%

Degradation of Materials

15%

XE-D

Solid Mechanics

Mechanics of Rigid Bodies

30%

Mechanics of Deformable Bodies

40%

Vibrations

30%

XE-E

Thermodynamics

Basic Concepts

15%

First Law of Thermodynamics

15%

Second Law of Thermodynamics

20%

Properties of Pure Substances

15%

Thermodynamic Relations

15%

Thermodynamic Cycles

10%

Ideal Gas Mixtures

10%

XE-F

Polymer Science and Engineering

Chemistry of High Polymers

20%

Polymer Characterization

15%

Synthesis, Manufacturing and Properties

20%

Polymer Blends and Composites

15%

Polymer Technology

10%

Polymer Rheology

10%

Polymer Processing

15%

Polymer Testing

15%

Polymer Recycling and Waste Management

10%

XE-G

Food Technology

Food Chemistry and Nutrition

25%

Food Microbiology

20%

Food Products Technology

25%

Food Engineering

30%

XE-H

Atmospheric and Oceanic Science

Atmospheric Science

55%

Ocean Science

45%

How to Prepare for GATE Engineering Sciences Syllabus 2025

Preparing the GATE 2025 XE syllabus involves a combination of strategic study, practice, and understanding the exam pattern. Here are some tips to help students prepare:

1. Go through the GATE XE syllabus 2025 thoroughly to understand the topics properly.

2. Arrange your study time based on the weightage of topics. Focus more on areas with higher weightage but also don't ignore less weighted topics.

3. Apart from reading textbooks, read reference books too. Solve GATE previous year question papers to understand the pattern and difficulty level.

5. Take regular mock tests to create exam conditions and improve time management.

6. Revise important formulas, reactions, and create summary for quick revision.

7. Keep track of any updates or changes related to the GATE XE exam, including changes in the syllabus or exam dates.

8. Maintain a healthy study routine with enough breaks and rest. Engage in activities like exercise, meditation, or hobbies to keep your mind fresh.

Best Books for GATE XE Syllabus 2025

Selection of good books is very important to crack the GATE XE 2025 exam. Apart from the textbooks the following reference books can help candidates explore the chapters with more information. Provided below is the list of best books recommended by experts for GATE Engineering Sciences syllabus 2025.

Book Title

Author(s)

Publisher

Higher Engineering Mathematics

B.V. Ramana

McGraw Hill

Advanced Engineering Mathematics

R.K. Jain & S.R.K. Iyengar

Narosa Publishing

Engineering Mathematics

K.A. Stroud

Palgrave Macmillan

Fluid Mechanics

Frank M. White

McGraw Hill

Materials Science and Engineering: An Introduction

William D. Callister Jr.

Wiley

Mechanics of Materials

Ferdinand P. Beer & E. Russell

McGraw Hill

Thermodynamics: An Engineering Approach

Yunus Çengel & Michael Boles

McGraw Hill

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