GATE 2025 Agricultural Engineering Syllabus: Check Important Topics, Books, and More

Linear Algebra

Matrices and Determinants | Linear and Orthogonal Transformations | Caley Hamilton Theorem | Eigen Values and Eigen Vectors | Solutions and Linear Equations

Calculus

Limit | Continuity and Differentiability | Partial Derivatives | Homogenous Function - Euler’s Theorem on Homogenous Functions | Total Differentiation | Maxima and Minima of Function with several independent variables | Sequences and series-infinite series | Tests of convergence | Fourier, Taylor, and MacLaurin Series

Vector Calculus

Vector Differentiation | Scalar and Vector Point Functions | Vector Differential Operators | Del, Gradient | Divergence and Curl | Physical Interpretations | Line, Surface, and Volume Integrals | Stokes, Gauss, and Green’s Theorem’s |

Differential Equations

Linear and Non-Linear First Order Ordinary Differential Equations (ODE) | Homogenous Differential Equations | Higher Order Linear ODEs with constant coefficients | Laplace Transforms and their Inverse | Partial Differential Equations - Laplace, Heat, and Wave Equations. 

Probability and Statistics

Mean, Median, Mode, and Standard Deviation | Random Variables | Poisson Normal and Binomial Distributions | Correlation and Regression Analysis

Numerical Methods

Solutions of Linear and Non-Linear Algebraic Equations | Numerical Integration  - Trapezoidal and Simpson’s Rule | Numerical Solutions of ODE’s

Machine Design

Design and Selection of Machine Elements - Gears, Pulleys, Chains, and Sprockets, and Belts | Overload Safety Devices used in Farm Machinery | Measurement of Force, Stress, Torque, Speed, Displacement, and Acceleration on Machine Elements - Shafts, Couplings, Keys, Bearings and Knuckle Joints

Farm Machinery

Soil Tillage - Forces acting on a tillage tool, Hitch Systems and Hitching of Tillage Implements | Inter Cultivation | Spraying, Mowing, Chaff Cutting | Cost Analysis of Implements and Tractors |

Sources of Power

Sources of Power on the Farm - Human, Animal, Mechanical, Electrical, Wind, Solar and Biomass, Bio-Fuels

Farm Power

Thermodynamic Principles of I.C Engines | Engine Components | Fuels and Combustion | Lubricants and Their Properties | I.C Engine Systems - Fuel, Cooling, Lubrication, Ignition, Electrical, Intake, and Exhaust | Selection, Operation, Maintenance and Repair of I.C Engines, Power Efficiencies and Measurement | Calculation of Power | Torque, Fuel Composition, etc.  

Tractors and Power Tillers

Type, Selection, Maintenance and Repair of Tractors and Power Tillers, Tractor Clutches and Brakes | Tractor Theory | Human Engineering and Safety Considerations in Design of Tractor and Agricultural Implements |

Fluid Mechanics

Ideal and Real Fluids | Properties of Fluids | Bernoulli’s Theorem | Laminar and Turbulent Flow in Pipes | Darcy-Weisbach and Hazen-Williams Equations | Moody’s Diagram | Concepts of Geometric Dimensionless Numbers

Soil Mechanics

Engineering Properties of Soils | Fundamental Definitions and Relationships | Index Properties of Soil | Stability of Soils | Terzaghi’s one-dimensional Soil Consolidation Theory

Hydrology

Hydrological Cycle and Measurement of its Components | Meteorological Parameters and their Measurement | Analysis of Precipitation Data | Unit Hydrograph Theory and Application

Surveying and Leveling

Measurement of Distance and Area | Instruments for Surveying and Levelling | Chain Surveying | Methods of Traversing | Measurement of Angles and Bearings | Computation of Areas and Volumes

Soil and Water Erosion

Mechanics of Soil Erosion - Wind and Water Erosion | Soil Erosion Types | Factors Affecting Erosion | Soil Loss Estimation | Biological and Engineering Measures to Control Erosion | Gully Control Structures | Earthen Dams

Watershed Management

Watershed Characterisation and Land Use Capability Classification | Water Budgeting in Watershed | Rainwater Harvesting | Check Dams and Farm Ponds 

Soil-Water-Plant Relationship

Water Requirement of Crops | Consumptive Use and Evapotranspiration | Measurement of Infiltration | Soil Moisture and Irrigation Water Infiltration

Irrigation Water Conveyance and Application Methods 

Design of Irrigation Channels and Underground Pipelines | Irrigation Scheduling | Surface | Sprinkler and Microirrgation Methods Design and Evaluation of Irrigation Methods | Irrigation Efficiencies

Agricultural Drainage

Drainage coefficient | Planning, Design, and Layout of Surface and Sub-Surface Drainage Systems | Leaching Requirement and Salinity Control | Irrigation and Drainage Water Quality and Reuse | Non-Conventional Drainage System

Ground Water Hydrology

Groundwater Occurrence | Darcy’s Law | Steady and Unsteady Flow in Confined Aquifers | Ground Water Exploration Techniques | Overview of Ground Water Recharge Estimation and Artificial Recharge Techniques

Wells and Pumps

Types of Wells | Steady Flow Through Wells | Design and Construction of Water Wells | Classification of Pumps | Pumps Characteristics | Pump Selection and Installation

Engineering Properties of Agriculture Produce

Physical | Thermal, Frictional, Rheological, and Electrical Properties

Evaporation and Drying

Concentration and Drying of Liquid Foods - Evaporators, Tray, Drum, and Spray Dryers, Properties of Air-Water Vapor Mixture

Size Reduction and Material Handling

Mechanics and Energy Requirements in Size Reduction of Agriculture| Particle Size Analysis for Comminuted Solids | Size Preparation by Screening| Fluidisation of Granular Solids - Pneumatic, Bucket, Screw and Belt Conveying| Cleaning and Grading | Homogenization |Filtration and Membrane Separation

Processing of Agriculture Produce

Processing of seeds, spices, fruits, and vegetables | Value Addition of Agriculture Produce

Heat and Mass Transfer

Steady-state heat transfer in conduction, convection, and radiation | Transient heat transfer in simple geometry | Working principles of heat exchangers | Diffusive and Convective Mass Transfer | Simultaneous heat and mass transfer in agriculture processing operations | Material and energy balances in food processing systems | Water activity, sorption, and desorption isotherms

Preservation of Food

Kinetics of Microbial Death- Pasteurization and Sterilization of milk and other liquid foods | Preservation of food by cooling and freezing | Refrigeration and cold storage basics and applications

General Intelligence and Reasoning

R.N Thakur

Analytical Reasoning

M.K Pandey

Fast Track Objective Mathematics

Rajesh Verma

Higher Engineering Mathematics

Dr B.S Grewal

MADE EASY Engineering Mathematics

MADE EASY Editorial Board

Applied Hydrology

Ven Chow, David Maidment, and Lary Mays

Concept of Agricultural Engineering

Mohanty Das

GATE Digest in Agricultural Engineering

Er. Sanjay Kumar

A-Z in Soil and Water Conservation Engineering for GATE Agricultural Engineering Examination

Addhaya Chakraborty and Dr Alivia Chowdhury Pulakesh Das