Things to Consider While Selecting a Greenhouse Site are (A). In... | Agrigyan

General Agriculture Drainage Systems Groundwater Development, Wells and Pumps Precision Agriculture Protected Cultivation & Landscaping Soil-Water-Plant Relationships Irrigation Systems Fluid Mechanics and Open Channel Hydraulics Hydrology of Agricultural Lands, Farm Ponds and Percolation Ponds
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Irrigation and Drainage Engineering- ICAR JRF/SRF 2024
MCQ (Single Correct)

Things to Consider While Selecting a Greenhouse Site are

(A) . In Free Standing greenhouse more sunlight is available in winter in East-West oriented greenhouse
(B) . In multi-span greenhouses, gutter should be oriented North South
(C) . In Naturally ventilated greenhouse, the ventilator should open on the leeward side.
(D) .A free standing greenhouse should have its long axis parallel to the wind direction

Choose the correct answer from the options given below:

Irrigation & Drainage Engineering Subjects

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Drainage Systems

2 Topics
Subsurface Tile Drainage & Steady-State Equations: Hooghoudt's Equation, Ernst Equation, Tile Depth & Drain Spacing Vertical Drainage & Drainage Effluent Management: Drainage Wells, Skimming Wells, Saline Drainage Disposal & Mitigation

Fluid Mechanics and Open Channel Hydraulics

5 Topics
Fluid Statics & Kinematics: Fluid Pressure, Manometers, Continuity Equation, Streamlines & Velocity Potential Open Channel Steady Uniform Flow: Manning's & Chezy's Equations, Hydraulic Radius & Most Economical Channel Sections Fluid Dynamics & Pipe Flow: Bernoulli's Theorem, Darcy-Weisbach Equation, Moody Diagram, Minor Losses & Water Hammer Varied Flow & Hydraulic Jump: Specific Energy, Critical Depth, Froude Number, Gradually Varied Flow & Hydraulic Jump Dimensional Analysis & Dynamic Similitude: Buckingham Pi Theorem, Reynolds, Froude, Weber & Mach Model Laws

General Agriculture

6 Topics
Agronomy, Tillage & Field Crop Production Agricultural Entomology, Nematology & Crop Protection Soil Science, Plant Nutrition & Reclamation Cell Biology, Plant Physiology & Biochemistry Agricultural Meteorology & Climate Science Crop Genetics, Plant Breeding & IPR

Groundwater Development, Wells and Pumps

5 Topics
Agricultural Lift Pumps: Centrifugal Pumps, Specific Speed, Characteristic Curves, NPSH & Cavitation Prevention Hydrogeology & Aquifer Mechanics: Confined, Unconfined & Perched Aquifers, Transmissivity, Storativity & Dupuit-Thiem Unsteady Well Hydraulics & Pumping Tests: Theis Non-Equilibrium Method, Cooper-Jacob Approximation & Recovery Tests Water Well Drilling & Construction: Rotary & Percussion Drilling, Well Screen Design, Gravel Pack Sizing & Development Special Pumps & Well Maintenance: Submersible, Turbine, Air-Lift, Jet Pumps, Well Deterioration & Acidification Rehabilitation

Hydrology of Agricultural Lands, Farm Ponds and Percolation Ponds

4 Topics
Stream Gauging & Hydrograph Analysis: Current Meters, Tracer Dilution Method, Stage-Discharge, Unit Hydrographs & S-Curve Agricultural Hydrometeorology & Runoff Mechanics: Precipitation Measurement, Thiessen Polygons, IDF Curves & SCS-CN Flood Routing & Hydrological Modeling: Modified Puls Reservoir Routing, Muskingum Channel Routing & Risk-Reliability Water Harvesting Ponds & Percolation Structures: Farm Pond Sizing, Conic Volume Estimation, Percolation Tanks & Seepage

Irrigation Systems

5 Topics
Surface Irrigation Hydraulics: Border Strip, Check Basin, Furrow Irrigation Advance-Recession & Field Efficiencies Sprinkler Irrigation Engineering: Network Hydraulics, Sprinkler Nozzles, Trajectory, Christiansen Uniformity CU & Sizing Fertigation & Micro-Irrigation Filtration: Venturi Injectors, Fertilizer Tanks, Hydrocyclone / Media / Screen Filters Drip / Micro-Irrigation Design: Emitter Flow Hydraulics, Emission Uniformity (EU), Lateral Sizing & Friction Losses Irrigation Conveyance & Automation: Canal Lining, Cross Drainage Structures (Aqueducts, Syphons), Pipe Networks & Valves

Precision Agriculture

4 Topics
Variable Rate Technology (VRT) & Yield Monitoring: Sensor-Based Application, Yield Monitors & Precision Spatial Mapping Geoinformatics & Spatial Positioning: Geographic Information Systems (GIS), GNSS (GPS, GLONASS, Galileo) & Geodesy Agricultural Remote Sensing & Spectral Indices: Multispectral Reflectance, Vegetation Indices (NDVI, RVI, SAVI) & Health Mapping Crop Simulation Modeling & Decision Support: Crop Growth Models (DSSAT, APSIM), Calibration, Validation & Precision Irrigation

Protected Cultivation & Landscaping

3 Topics
Greenhouse Structural Engineering: Greenhouse Types (Even Span, Quonset), Framing Materials, Wind & Snow Load Analysis Active Greenhouse Environmental Control: Evaporative Cooling (Fan-and-Pad Systems), Space Heating, Shading Nets & Ventilation Hydroponics, Soilless Culture & Automated Fertigation: Closed/Open Loop Systems, Nutrient Film Technique (NFT) & Substrates

Soil-Water-Plant Relationships

4 Topics
Soil Moisture Constants & Movement: Field Capacity, Permanent Wilting Point, Available Water & Darcy-Richards Unsaturated Flow Evapotranspiration & Consumptive Use: Reference Crop ET, Penman-Monteith, Blaney-Criddle & Crop Water Coefficients Salt-Affected Soils & Water Quality: Saline, Sodic & Saline-Sodic Soils, ESP, SAR, Electrical Conductivity & Leaching Fraction Soil Water Energy Concepts: Matric, Osmotic, Pressure, Gravitational Potentials & pF Characteristic Curves
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