Machine parameters those influence the performance of a combine... | Agrigyan

General Agriculture Power Generation and Energy Storage Thermochemical Conversion Technology Energy Auditing and Management Wind Energy Engineering Biochemical Conversion Technology Solar Energy Engineering Modeling and Project Management in Energy Liquid Biofuels
27
Renewable Energy Engineering- ICAR JRF/SRF 2024
MCQ (Single Correct)

Machine parameters those influence the performance of a combine harvester are

(A) . speed of reel
(B) . speed of threshing cylinder
(C) . extent of vibration
(D) . height of cut (©). speed of straw rack

Choose the correct answer from the options given below:

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Biochemical and Process Engineering

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Bioreactor Transport Phenomena: Oxygen Mass Transfer (kLa), Impeller Agitation, Air Sparging & Bioprocess Scale-Up Enzyme Kinetics & Bioprocess Dynamics: Michaelis-Menten Kinetics, Monod Growth Model & Microbial Cultivation

Biochemical Conversion Technology

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Organic Waste Characterization: Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD) & Kjeldahl Nitrogen Rural & Community Biogas Plants: KVIC Floating Drum, Janata Fixed Dome, Deenbandhu Model & Burner Efficiency High-Rate Biomethanation Reactors: UASB Reactors, Fluidized Bed, Anaerobic Filters & Fixed Film Digestors Anaerobic Digestion Fundamentals: Biogas Generation Phases (Hydrolysis, Acidogenesis, Methanogenesis) & C:N Ratio Active

General Agriculture

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Biodiesel Properties & Engine Performance: ASTM D6751 / IS 15607 Standards, Blends (B20, B40) & Viscosity Effects Lignocellulosic Bioethanol Production: Delignification Pretreatment, Enzymatic Hydrolysis, Fermentation & Distillation Biodiesel Production Chemistry: Triglyceride Transesterification, Alcohol-Catalyst Ratios & Glycerol Separation

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Solar Energy Engineering

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Flat-Plate Solar Collectors: Liquid & Air Absorber Plates, Selective Coatings, Heat Removal Factor & Efficiency Solar Ponds & Advanced Thermal Storage: Salt-Gradient Non-Convective Solar Ponds & Sensible/Latent Heat Storage Solar Thermal Applications: Box & Parabolic Solar Cookers, Solar Water Heating, Solar Distillation Stills & Dryers Solar PV System Design & Water Pumping: Standalone & Grid-Tied PV, Inverters, Charge Controllers & PV Water Pumps Solar Radiation Geometry & Measurement: Solar Constant, Beam & Diffuse Radiation, Pyranometers & Pyrheliometers Photovoltaic Cell Physics & Module Engineering: Semiconductor P-N Junction, Photovoltaic Effect, I-V Curve & Arrays Concentrating Solar Collectors: Parabolic Trough Collectors (PTC), Scheffler Concentrators & Central Tower CSP

Thermochemical Conversion Technology

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Biomass Fuel Characterization: Ultimate/Proximate Analysis, Dulong's Heating Value Formula & Stoichiometric Air Biomass Gasification & Producer Gas: Gasification Chemical Zones, Updraft/Downdraft Gasifiers & Tar Elimination Biomass Pyrolysis & Biorefinery: Slow/Fast Pyrolysis, Biochar Carbon Sequestration, Bio-Oil & Syn-Gas Biomass Combustion & Incineration: Excess Air Dynamics, Grate Furnaces, Fluidized Bed Combustion & Co-Firing

Wind Energy Engineering

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Wind Power Physics & Betz Limit: Wind Kinetic Power (P proportional to V^3), Betz Coefficient (Cp max = 59.3%) Aerodynamics of Wind Turbines: Aerofoil Lift and Drag Forces, Rotor Blade Geometry & Tip Speed Ratio Atmospheric Wind Characteristics: Wind Shear, Atmospheric Boundary Layer, Power Law (Hellmann Exponent) & Anemometry Wind Energy Conversion Systems: Horizontal Axis (HAWT) vs Vertical Axis (VAWT) Wind Turbines & Grid Integration
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