FOOD TECHNOLOGY (29/08/2021)

Q1. Which Of The Following Indicates The Uniformity Of Grind In Reduced Material?

A. Degree Of Grinding
B. Work Index
C. Fineness Modulus
D. None Of The Above

ANSWER: C. Fineness Modulus

  • Explanation: The Notion Of The Fineness Modulus Was Established To Characterize The Overall Fineness Or Coarseness Of An Aggregate Sample. Fineness Modulus Is A Metric That Measures How Consistent The Grind Is In The Final Product. The Percentage Cumulative Weight Fraction Of Material Retained On Each Of A Given Set Of Standard Sieves Is Added Together And Divided By 100 To Get The Fineness Modulus.


Q2. __________ Is Also Called True Density.

A. Bulk Density
B. Kernel Density
C. Linear Density
D. None Of The Above

ANSWER: B. Kernel Density

  • Explanation: Kernel Density Is Also Known As True Density. It’s The Ratio Of A Grain Sample’s Mass To The Solid Volume It Takes Up. On The Basis Of Archimedes’ Fluid Displacement Principle, Two Ways Can Be Used To Accomplish This Test. One Approach Uses Gas Displacement, While The Other Uses Liquid Displacement.


Q3. _________ Test Parameter Is Useful In Determining The Pressure Of Grain Against Bin Wall And Silos During Grain Storage.

A. Coefficient Of Friction
B. Thousand Grain Weight
C. Sphericity
D. Density

ANSWER – A. Coefficient Of Friction

  • Explanation – The Coefficient Of Friction Can Be Static Or Dynamic. During Grain Storage And Handling, This Test Parameter Is Useful In Determining Grain Pressure On Bin Walls And Silos (Filling And Emptying). The Static Coefficient Of Various Cereal Grains Is Determined In Relation To Various Storage (Tank/ Silos/Bins) Structural Materials Such As Plywood, Plastic, And Galvanized Iron.


Q4. The Slope Of Grain Is Taken As A Measure Of__________.

A. Porosity
B. Angle Of Grain
C. Angle Of Repose
D. Angle Of Roundness

ANSWER – C. Angle Of Repose

  • Explanation- The Steepest Angle At Which A Sloping Surface Made Of Loose Material Remains Stable Is Called The Angle Of Repose. Grain Is Allowed To Flow Vertically From A Specially Designed Box To Its Natural Slope To Establish The Angle Of Repose. The Angle Of Repose Is Measured By The Slope Of The Grain. It Has Been Discovered That Coarse Grains, Such As Paddy, Wheat, And Beans, Have A Greater Emptying Angle Of Repose Than Oil Bean Seeds.


Q5. _______ Is Defined As The Fraction Of The Space In The Bulk Grain That Is Not Occupied By The Grain.

A. Bulk Volume
B. Specific Heat
C. Bulk Density
D. Porosity

ANSWER: D. Porosity

  • Explanation: Porosity Is A Useful Test Parameter That Has A Big Impact On Kernel Hardness, Milling Breakage Susceptibility, Drying Rate, And Fungal Resistance. The Bulk And Kernel Densities Determine Grain Porosity. The Grain Porosity Is Determined Using A Pycnometer. The Percentage Of Space In A Bulk Grain That Is Not Occupied By The Grain Is Known As Porosity.


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