Which of the following statement about polypropylene is wrong?
Which of the following is best suited for evaporating tomato... | Agrigyan
31
32
The maximum levels of permitted preservative sulphur dioxide in fruit juice is .......ppm
33
Which of the following benefits are associated with High Pressure Processing (HPP) technology in food preservation?
(A).Reduction of food spoilage by inhibiting enzymatic activity.
(B).Enhancement of food safety by eliminating all types of microorganisms
(C).Retention of food texture, color, and flavor.
(D) Shortening of the shelf life of perishable foods.
Choose the correct answer from the options given below:
34
At triple point of water the values of temperature And pressure.......?
35
Which of the following is best suited for evaporating tomato puree?
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
Active
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
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