GRADUATE ENGINEERING TEST IN ENGINEERING
GATE 2013-14 SYLLABUS
AGRICULTURAL ENGINEERING (AG)
ENGINEERING MATHEMATICS:AGRICULTURAL ENGINEERING (AG)
- 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; Test for convergence; Fourier 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 ODEs; Higher order linear ODEs with constant coefficients; Cauchy's and Euler's equations; Laplace transforms; PDEs - 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; integration of trapezoidal and Simpson's rule; single and multi-step methods for differential equations.
- Sources of power on the farm-human: animal, mechanical,electrical, wind, solar and biomass; bio-fuels; 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.
- Soil tillage:forces acting on a tillage tool; hitch systems &hitching of tillage implements; mechanics of animal traction; 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
- Thermodynamic principles of I.C. engines: I.C. engine cycles;engine components; fuels & 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 & power tillers:type,selection, maintenance and repair; 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; human engineering and safety in tractor design; tractor tests and performance.
- Ideal and real fluids:properties of fluids; hydrostatic pressure & 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.
- 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: meteorological parameters and their measurement, analysis of precipitation data; abstraction from precipitation; runoff; hydrograph analysis, unit hydrograph theory and application; stream flow measurement; flood routing, hydrological reservoir and channel routing. Measurement of distance and area; chain surveying, methods of traversing; measurement of angles and bearings, plane table surveying; types of levelling; contouring; instruments for surveying and levelling; computation of earth work.
- 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; water harvesting structures, farm ponds, watershed management.
- Soil-water-plant relationship:Water requirement of crops;consumptive use & transpiration; irrigation scheduling; irrigation efficiencies; design of irrigation channels; measurement of soil moisture, irrigation water and infiltration; surface, sprinkler and drip methods of irrigation; design and evaluation of irrigation methods.
- Drainage coefficient: planning,design & layout of surface & sub-surface drainage systems; leaching requirement and salinity control; irrigation and drainage water quality.
- Groundwater occurrence confined & unconfined aquifers:evaluation of aquifer properties; well hydraulics; groundwater recharge.
- Classification of pumps:pump characteristics:pump selection and installation.
- Steady state heat transfer in conduction:convection and radiation; transient heat transfer in simple geometry; condensation and boiling heat transfer; working principles of heat exchangers; diffusive and convective mass transfer; simultaneous heat and mass transfer in agricultural processing operations.
- Material & energy balances in food processing systems:water activity,sorption and desorption isotherms; centrifugal separation of solids,liquids &gases; kinetics of microbial death - pasteurization and sterilization of liquid foods; preservation of food by cooling and freezing; refrigeration and cold storage basics &applications; psychrometry - properties of air-vapour mixture; concentration and drying of liquid foods - evaporators, tray, drum and spray dryers.
- Mechanics & 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.
- Hydrothermal treatment:drying &milling of cereals:ulses and oilseeds; Processing of seeds, spices, fruits and vegetables; By-product utilization from processing industries.
- Controlled & modified atmosphere storage:Perishable food storage, godowns, bins & grain silos.
thank youDirektur SERP
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