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GATE 2017 Agriculture Engineering (AG) Syllabus

Last Updated - October 20, 2016

Section1: Engineering Mathematics

TopicsSub Topics
Linear AlgebraMatrices and determinants, systems of linear equations, Eigen values and eigen vectors.
Vector CalculusGradient; divergence and curl; line; surface and volume integrals; Stokes, Gauss and Green’s theorems
CalculusLimit, continuity and differentiability; partial derivatives; maxima and minima; sequences and series; tests for convergence; Fourier series, Taylor series
Differential EquationsLinear 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 StatisticsMean, median, mode and standard deviation; random variables; Poisson, normal and binomial distributions; correlation and regression analysis; tests of significance, analysis of variance (ANOVA).
Numerical MethodsSolutions of linear and non-linear algebraic equations; numerical integration - trapezoidal and Simpson’s rule; numerical solutions of ODE.

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Section 2: Farm Machinery

TopicsSub Topics
Machine DesignDesign 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 MachinerySoil 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.

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Section 3: Farm Power

TopicsSub Topics
Sources of PowerSources of power on the farm - human, animal, mechanical, electrical, wind, solar and biomass; bio-fuels
Farm PowerThermodynamic 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.

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Section 4: Soil and Water Conservation Engineering

TopicsSub Topics
Fluid MechanicsIdeal 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 MechanicsEngineering 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 LevelingMeasurement 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 ErosionMechanics 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 ManagementWatershed characterization; land use capability classification;rainwater harvesting structures,check dams and farm ponds.

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Section 5: Irrigation and Drainage Engineering

Core TopicsSub Topics
Soil-Water-Plant RelationshipWater requirement of crops; consumptive use and evapotranspiration; measurement of infiltration, soil moisture and irrigation water infiltration.
Irrigation Water Conveyance and Application MethodsDesign 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 HydrologyGroundwater occurrence; Darcy’s Law, steady flow in confined and unconfined aquifers, evaluation of aquifer properties; groundwater recharge.
Wells and PumpsTypes of wells, steady flow through wells; classification of pumps; pump characteristics; pump selection and installation.

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Section 6: Agricultural Processing Engineering

TopicsSub Topics
DryingPsychrometry – 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 UtilizationProcessing of seeds, spices, fruits and vegetables; By-product utilization from processing industries
Storage SystemsControlled and modified atmosphere storage; perishable food storage, godowns, bins and grain silos.

Section 7: Dairy and Food Engineering

TopicsSub Topics
Heat and Mass TransferSteady 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 FoodKinetics of microbial death – pasteurization and sterilization of milk and otherliquid foods; preservation of food by cooling and freezing; refrigeration and cold storage basics and applications.

Syllabus Of Other Papers

Aerospace EngineeringAEMechanical EngineeringME
Engineering SciencesXEMetallurgical EngineeringMT
Civil EngineeringCEMining EngineeringMN
Chemical EngineeringCHPetroleum EngineeringPE
Computer Science and Information TechnologyCSProduction and Industrial EngineeringPI
Electronics and CommunicationECTextile Engineering and Fibre ScienceTF
Electrical EngineeringEEBiotechnologyBT
Instrumentation EngineeringIN  



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