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Physical Characteristics of Grains Importance
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Physical Characteristics of Grains Importance

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Questions and Answers

Why is it important to study the physical properties of grains?

  • To analyze the chemical composition of grains
  • To design machines and structures for production and storage (correct)
  • To estimate the market value accurately
  • To determine the taste and color of the grains

    • What is a key application of solving problems related to heat and mass transfer in grain processing?

  • Improving the quality of grain storage
  • Enhancing the aroma of grains
  • Enhancing the shelf life of grains (correct)
  • Increasing the weight of the grains

    • How are shape and size related when describing a physical object?

  • Only shape influences the physical properties of an object
  • Size is crucial, while shape is optional
  • Both are necessary for a complete description of an object (correct)
  • Shape is irrelevant when considering size

    • Which criteria can be used to describe the shape and size of grains?

    <p>Comparison with a charted standards</p> Signup and view all the answers

    What is a characteristic used to classify types of paddy based on ISO standards?

    <p>Length/width ratio</p> Signup and view all the answers

    What is a possible disadvantage of defining product shape using standard charts and descriptive terms?

    <p>It is a subjective assessment prone to personal bias.</p> Signup and view all the answers

    How can the axial dimensions of a sample be measured according to the text?

    <p>By tracing the outline of the sample's projection with a photographics enlarger.</p> Signup and view all the answers

    Why is the surface area of a product, such as paddy grain, important according to the text?

    <p>It affects porosity, angle of repose, and angle of friction.</p> Signup and view all the answers

    In the context of rice particles, what length characterizes brewer's rice?

    <p>Less than 3/8 of the whole unbroken milled rice kernel length.</p> Signup and view all the answers

    What defines a large broken milled grain in terms of length compared to the whole unbroken milled rice kernel?

    <p>Between 3/8 and 6/8 of the length.</p> Signup and view all the answers

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