GATE Agricultural Engineering Syllabus 2017
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GATE 2017 Agricultural Engineering Syllabus ( AG )
Section 1 : Engineering Mathematics
Linear Algebra : Matrices and Determinants, Systems of linear equations, Eigen values and eigen vectors.
Calculus : 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.
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.
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 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 Methods : 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 and Food Engineering
Drying : 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 otherliquid foods; preservation of food by cooling and freezing; refrigeration and cold storage basics and applications.
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