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Heart of microwave oven is
Heart of microwave oven is - Solved MCQ | Agrigyan
General Agriculture
6 TopicsDairy and Food Engineering-I
6 Topics
Time-Dependent Rheology & Food Texture: Thixotropy, Rheopexy & Texture Profile Analysis (TPA)
Fluid Mechanics & Fluid Transport: Laminar & Turbulent Flow, Reynolds Number, Friction Factor & Pressure Drops
Rheology of Dairy & Food Fluids: Newtonian Fluids, Pseudoplastic, Dilatant, Bingham Plastic & Yield Stress
Viscoelasticity & Mechanical Analog Models: Hookean Solids, Maxwell & Kelvin-Voigt Models, Creep & Relaxation
Food Freezing Principles: Freezing Point Depression, Plank's Freezing Equation & Cryogenic Freezing
Dairy Pumps Engineering: Centrifugal Pumps, Positive Displacement Pumps, Cavitation & NPSH
Evaporation and Drying
4 Topics
Novel Dehydration Systems: Vacuum Drying, Freeze-Drying (Lyophilization) & Freeze-Concentration
Milk Evaporators: Single & Multiple Effect Evaporators, Falling Film, Scraped Surface & Boiling Point Elevation
Powder Recovery & Handling: Cyclones, Bag Filters, Wet Scrubbers, Fluidized Bed Dryers & Agglomeration
Vapour Separation & Energy Economy: Cyclone Entrainment Separators, Thermal & Mechanical Vapour Recompression
Dairy and Food Engineering-II
4 Topics
Gas & Vapour Permeability in Packaging: Water Vapour Transmission Rate (WVTR), Oxygen Permeability & Detector Film
Membrane Transport Engineering: Microfiltration, Ultrafiltration, Nanofiltration, Reverse Osmosis & Dialysis
Water Activity & Sorption Thermodynamics: Moisture Sorption Isotherms, BET & GAB Models, Hysteresis & Food Stability
Microwave & Dielectric Heating: Magnetron Operation, Dielectric Loss Factor, Penetration Depth & Industrial Processing
Active
Thermal Engineering
5 Topics
Heat Conduction & Extended Surfaces: Fourier's Law, Variable Thermal Conductivity & Fin Heat Dissipation
Heat Exchanger Thermal Design: Logarithmic Mean Temperature Difference (LMTD) & Effectiveness-NTU Methods
Convective Heat Transfer & Dimensionless Numbers: Nusselt, Reynolds, Prandtl, Grashof & Rayleigh Numbers
Classical Thermodynamics & Availability: First & Second Laws, Exergy, Available Energy & Dead State Dynamics
Gas & Air Standard Power Cycles: Otto, Diesel, Dual Combustion & Brayton Cycles Thermodynamic Efficiency
Process Equipment Design
6 Topics
Pressure Vessel Mechanics & Design Codes: Thin vs Thick Shell Criteria, ASME Section VIII & IS 2825 Standards
Dairy Storage Tanks & Milk Silos: Agitated Tanks, Thermal Insulation, Wind Load Dynamics & Hygienic Standards
Heat Exchanger Mechanical Construction: Shell-and-Tube, Floating Head Thermal Expansion Relief & Plate Exchangers
Pressure Vessel Heads & Closures: Dished Heads (Torispherical, Ellipsoidal, Hemispherical) vs Flat Heads Stress Concentration
Structural Supports for Dairy Vessels: Skirt Supports, Leg Supports, Lug/Bracket Supports & Foundation Loadings
Agitation & Mixing Equipment Design: Impeller Types, Vortex Formation Prevention, Baffles & Power Number
Refrigeration Engineering
5 Topics
Vapour Compression Refrigeration Systems (VCRS): Thermodynamic Cycle, Multi-Stage Compression & Intercooling
Psychrometrics & Air Conditioning: Dry Bulb, Wet Bulb, Dew Point, Relative Humidity, Contact & Bypass Factors
Cold Storage & Thermal Energy Storage: Cold Room Heat Load Estimation & Ice Bank Tank (IBT) Chilled Water Systems
Eco-Friendly Refrigerants & Environmental Metrics: Halocarbons, Hydrocarbons, Natural Refrigerants, ODP & GWP
Vapour Absorption & Alternative Systems: Ammonia-Water, Lithium Bromide-Water Pairs & Waste Heat Utilization
Instrumentation and Process Control
7 Topics
Programmable Logic Controllers (PLC) & Industrial Automation: Architecture, Ladder Logic & SCADA Systems
Process Indicators & Data Recorders: Strip Chart Recorders, Circular Chart Recorders & Digital Data Acquisition
Automatic Process Control & Controller Modes: Proportional (P), Integral (PI), Derivative (PID) Controllers & Loop Tuning
Process Temperature Transducers: Thermocouples (Seebeck Effect), RTD (Pt100), Thermistors & Pyrometry
Pressure & Humidity Transducers: Bourdon Tubes, Diaphragm Gauges, Strain Gauges, Hair Hygrometers & Capacitive Sensors
Process Flow & Level Measurement: Electromagnetic Flowmeters, Coriolis Mass Flow, Ultrasonic & Differential Pressure
Final Control Elements & Process Actuators: Pneumatic Control Valves, Valve Positioners & Fail-Safe Modes
Official PYQ Papers
Previous Year Papers of Dairy Engineering
Practice official shift-wise question papers with answer keys and detailed explanations on the actual exam pattern.
1
Total Available
Previous Papers
2024
29-06-2024