GATE 2019 Syllabus for Agricultural Engineering

GATE 2019 Syllabus for Agricultural Engineering – GATE 2019 exam is conducted to offer admission into M.Tech/M.Sc in engineering/ technology/ architecture and P.hD and it is managed by the IIT. Graduate Aptitude Test in Engineering (GATE) is a national level examination and in relevant branches of science, it GATE 2019 Mock Tests have been released.


In each of the GATE 2019 subjects, the topics have been divided into two categories. On core topics, the corresponding sections (of the syllabus given below) of the question paper will contain 90% of their questions and the remaining 10% on Special Topics.


About Agricultural Engineering

 The concepts and techniques of Agriculture and modern technology and Engineering practices will be combined by Agricultural Engineering. Agricultural Engineering combines various fields such as animal and plant sciences, geology, environmental science, core Engineering branches, modern agricultural technology etc. For graduates of this course, the jobs that are obtained can be a research scientist, lecturer, microbiologist etc.


Syllabus of Agricultural Engineering for GATE 2019

Engineering Mathematics


  • Linear Algebra: Systems of linear equations, Matrices and determinants, Eigen values and eigen vectors.


  • Calculus: Partial derivatives; maxima and minima Tests for convergence; Fourier series, Taylor series Limit, continuity and differentiability; sequences and series;.


  • Differential Equations: Laplace transforms; Linear and non-linear first order Ordinary Differential Equations (ODE); Higher order linear ODEs with constant coefficients; Cauchy’s and Euler’s equations; Partial Differential Equations – Laplace, heat and wave equations.


  • Vector Calculus: Divergence and curl; line Gradient; surface and volume integrals; Stokes, Gauss and Green’s theorems.


  • Numerical Methods: Simpson’s rule; numerical solutions of the ODE. Numerical integration – trapezoidal Solutions of linear and non-linear algebraic equations;


  • Probability and Statistics: Correlation and regression analysis; tests of significance, analysis of variance (ANOVA).Mean, median, mode and standard deviation; random variables; Poisson, normal and binomial distributions.


Farm Machinery


  • Machine Design: Overload safety devices used in farm machinery; Design and selection of machine elements –measurement of force, torque, speed, displacement and acceleration on machine elements; gears, pulleys, chains and sprockets and belts


  • Farm Machinery: Soil tillage; Calculation of performance parameters – field capacity, efficiency, application rate and losses; cost analysis of implements and tractors; Sowing, planting, fertilizer application, inter-cultivation, spraying, mowing, chaff cutting, harvesting, threshing and transport 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, testing of agricultural machinery and equipment.

Farm Power


  • Sources of Power: Animal, mechanical, electrical, Sources of power on the farm – human, wind, solar and biomass; bio-fuels.


  • Maintenance and repair of tractors and power tillers; Type, selection, tractor clutches and brakes; power transmission systems – gear trains, differential


  • Tractors and Power tillers: Mechanics of tractor chassis; Final drives and power take-off; traction theory; three-point hitches- free link and restrained link operations; mechanical


  • Farm Power: Lubrication, ignition I.C. Engine systems – fuel, cooling, , 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; Thermodynamic principles of I.C. engines; I.C. engine cycles; fuels and combustion; engine components; lubricants and their properties. Tractor tests and performance; Human engineering and safety in the design of tractor and agricultural implements; Steering and hydraulic control systems used in tractors;

Soil and Water Conservation Engineering


  • Fluid Mechanics: Properties of fluids; hydrostatic pressure and its measurement; hydrostatic forces on plane and curved surface; continuity equation; Ideal and real fluids, Bernoulli’s theorem; Darcy- Weisbach and Hazen-Williams equations,  laminar and turbulent flow in pipes, 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.


  • Hydrology: 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 levelling; chain surveying, methods of traversing; measurement of angles and bearings, plane table surveying; types of levelling; theodolite traversing; contouring; computation of areas and volume.


  • Soil and Water Erosion: Terraces and bunds; vegetative waterways; Factors affecting erosion; soil loss estimation; biological and engineering measures to control erosion; gully control structures, drop, drop inlet and chute spillways; earthen dams. Mechanics of soil erosion, soil erosion types, wind and water erosion.


  • Watershed Management: Check dams and farm ponds Watershed characterisation; land use capability classification; rainwater harvesting structures.


Agricultural Processing Engineering


  • Drying: Concentration and drying of liquid foods – evaporators, tray, drum and spray dryers; Psychrometry – properties of air- vapours mixture; hydrothermal treatment; drying and milling of cereals, pulses and oilseeds.


  • Processing and By-product Utilization: By-product utilisation from processing industries. Processing of seeds, spices, fruits and vegetables;


  • Size Reduction and Conveying: Particle size analysis for comminuted solids; Mechanics and energy requirement in size reduction of granular solids; size separation by screening; fluidisation of granular solids-pneumatic, bucket, cleaning and grading; screw and belt conveying; effectiveness of grain cleaners; centrifugal separation of solids, liquids and gases.


  • Storage Systems: Perishable food storage, godowns, bins and grain silos Controlled and modified atmosphere storage;


Dairy and Food Engineering


  • Heat and Mass Transfer: Transient heat transfer in simple geometry; working principles of heat exchangers; Steady state heat transfer in conduction, convection and radiation 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 – pasteurisation and sterilisation of milk and other liquid foods; preservation of food by cooling and freezing; refrigeration and cold storage basics and applications.


Irrigation and Drainage Engineering


  • Soil-Water-Plant Relationship: Soil moisture and irrigation water infiltration Water requirement of crops; consumptive use and evapotranspiration; measurement of infiltration.


  • Irrigation Water Conveyance and Application Methods: Sprinkler and micro-irrigation methods, design and evaluation of irrigation methods; irrigation efficiencies; Design of irrigation channels and underground pipelines; irrigation scheduling; surface.


  • Agricultural Drainage: Sub-surface drainage systems; leaching requirement and salinity control; Drainage coefficient; planning, design and layout of surface and irrigation and drainage water quality and reuse.


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


  • Wells and Pumps: Classification of pumps; pump characteristics; pump selection and installation. Types of wells, steady flow through wells;


Exam Pattern for GATE 2019


Exam Pattern for GATE 2019
Section Question No No of Questions Marks per Question Total Marks
General Aptitude 1 to 5 5 1 5
6 to 10 5 2 10
Technical &  Engineering 1 to 25 25 1 25
Mathematics 26 to 55 30 2 60



Total Questions: 65

Total Marks: 100

Total Duration : 3 hours

Technical Section: 70 marks

General Aptitude: 15 marks

Engineering Mathematics: 15 marks


25 marks to 40 marks will be allotted to Numerical Answer Type Questions


Reference Books for Agricultural Engineering- GATE 2019

  •  Question Bank On Agricultural Engineering by Garg, Chandra
  • Question Bank on Agriculture for Competitive Exams by Neeraj Pratap Singh
  • Agricultural Engineering Question Bank by Jain Brothers
  • Agriculture Process Engineering by Narendra Publishing House


Other GATE 2019 Syllabus and Information