GATE Agriculture Engineering

Last updated by Esha Upadhyay

GATE Agriculture Engineering syllabus

I have also outlined the syllabus of GATE Agriculture Engineering below for your reference. This is the latest syllabus taken form the official website of GATE exams (link)

Section 1: Engineering Mathematics

Linear Algebra

Matrices and determinants, systems of linear equations, Eigen values and eigen vectors.


Limit, continuity and differentiability; partial derivatives; maxima and minima; sequences and series; tests for convergence; Fourier series, Taylor series.

Vector Calculus

Gradient; divergence and curl; line; surface and volume integrals; Stokes, Gauss and Green’s theorems.

Differential Equations

Linear and non-linear first order Ordinary Differential Equations (ODE); Higher order linear ODEs with constant coefficients; Cauchy’s and Euler’s equations; Laplace transforms; 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; tests of significance, analysis of variance (ANOVA).

Numerical Methods

Solutions of linear and non-linear algebraic equations; numerical integration – trapezoidal and Simpson’s rule; numerical solutions of ODE

Section 2: Farm Machinery

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, torque, speed, displacement and acceleration on machine elements.

Farm Machinery

Soil tillage; forces acting on a tillage tool; hitch systems and hitching of tillage implements; functional requirements, principles of working, construction and operation of manual, animal and power operated equipment for tillage, sowing, planting, fertilizer application, inter-cultivation, spraying, mowing, chaff cutting, harvesting, threshing and transport; testing of agricultural machinery and equipment; calculation of performance parameters – field capacity, efficiency, application rate and losses; cost analysis of implements and tractors.

Section 3: Farm Power

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; I.C. engine cycles; 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 consumption, heat load and power losses.

Tractors and Powertillers

Type, selection, maintenance and repair of tractors and powertillers; tractor clutches and brakes; power transmission systems – gear trains, differential, final drives and power take-off; mechanics of tractor chassis; traction theory; three point hitches- free link and restrained link operations; mechanical steering and hydraulic control systems used in tractors; tractor tests and performance. Human engineering and safety in design of tractor and agricultural implements

Section 4: Soil and Water Conservation Engineering

Fluid Mechanics

Ideal and real fluids, properties of fluids; hydrostatic pressure and its measurement; hydrostatic forces on plane and curved surface; continuity equation; Bernoulli’s theorem; laminar and turbulent flow in pipes, Darcy- Weisbach and Hazen-Williams equations, Moody’s diagram; flow through orifices and notches; flow in open channels.

Soil Mechanics

Engineering properties of soils; fundamental definitions and relationships; index properties of soils; permeability and seepage analysis; shear strength, Mohr’s circle of stress, active and passive earth pressures; stability of slopes.


Hydrological cycle and components; meteorological parameters, their measurement and analysis of precipitation data; runoff estimation; hydrograph analysis, unit hydrograph theory and application; stream flow measurement; flood routing, hydrological reservoir and channel routing.

Surveying and Leveling

Measurement of distance and area; instruments for surveying and leveling; chain surveying, methods of traversing; measurement of angles and bearings, plane table surveying; types of leveling; theodolite traversing; contouring; computation of areas and volume.

Soil and Water Erosion

Mechanics of soil erosion, soil erosion types, wind and water erosion, factors affecting erosion; soil loss estimation; biological and engineering measures to control erosion; terraces and bunds; vegetative waterways; gully control structures, drop, drop inlet and chute spillways; earthen dams.

Watershed Management: Watershed characterization; land use capability classification;rainwater harvesting structures,check dams and farm ponds.

Section 5: Irrigation and Drainage Engineering

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 Method

Design of irrigation channels and underground pipelines; irrigation scheduling; surface, sprinkler and micro irrigation 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.

Groundwater Hydrology

Groundwater occurrence; Darcy’s Law, steady flow in confined and unconfined aquifers, evaluation of aquifer properties; groundwater recharge.

Wells and Pumps

Types of wells, steady flow through wells; classification of pumps; pump characteristics; pump selection and installation

Section 6: Agricultural Processing Engineering


Psychrometry – properties of air-vapors mixture; concentration and drying of liquid foods – evaporators, tray, drum and spray dryers; hydrothermal treatment; drying and milling of cereals, pulses and oilseeds.

Size Reduction and Conveying

Mechanics and energy requirement in size reduction of granular solids; particle size analysis for comminuted solids; size separation by screening; fluidization of granular solids-pneumatic, bucket, screw and belt conveying; cleaning and grading; effectiveness of grain cleaners; centrifugal separation of solids, liquids and gases.

Processing and By-product Utilization

Processing of seeds, spices, fruits and vegetables; By-product utilization from processing industries.

Storage Systems

Controlled and modified atmosphere storage; perishable food storage, godowns, bins and grain silos.

Section 7: Dairy and Food Engineering

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 agricultural 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

GATE Agriculture Engineering statistics

Below are some interesting statistics about this paper. I will explain why it is important to know about these facts

  1. Number of candidates registered for the exam – 1,600 approx
  2. Number of candidates appeared for the exams – 1,400 approx
  3. Number of qualified candidates – 165
  4. Percentage of candidates passed – 12% approx
  5. Maximum marks out of 100 – 45.33
  6. Minimum marks out of 100 – 16.67
  7. Average marks is                   27.97
  8. Standard deviation                   6.67

Agriculture Engineering paper is one of the most difficult paper. The maximum marks of Agriculture Engineering is lowest among other papers. The average marks is also low. This makes it tough exams.

As maximum marks is low you should focus on scoring anything in range of 40%. It would give you good ranking. You should focus on topics with this thing in mind. There is no point covering every topic in Agriculture Engineering. You should clearly outline the topics you are good at and focus more on those topics.

GATE Agriculture Engineering Book 1

Below are features for which I am recommending this book

  • Previous year solved paper of GATE exams
  • The book is in self study mode.
  • It is divided into topics for better planning and reading
  • It is highly rated by candidates who appeared for previous years of GATE exams


GATE Agriculture Engineering Book 2

This book is also highly rated. Candidates should select this one if they for some reason do not want first one.It has same features as the first one. Only problem with this book is lack of regular update. The latest edition is also few years old.

  • It provides solutions to previous year GATE exams 1991 to 2011 with hints.The hint feature makes it excellent book
  • Book is focused on GATE but serves purpose of other competitive exams as well
  • Highest rated book by the candidates
  • The book is old one but still applicable and used by candidates appearing for competitive exams.


As mentioned above I would recommend first one but that one is costlier than this one. So if cost is a factor for you then you can by the second book.


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