Allied & ICAR Exam Bank • ALLIED_1298 MCQ • 1 Mark

Section 6: Agricultural Process Engineering

Engineering Properties of Grains

Subtopic: Roundness of Grain

Question Statement:

In physical property measurements, roundness of a grain particle is defined as the ratio of:

Options:

  • (A) Largest projected area of the particle in natural rest position to the area of the smallest circumscribed circle
  • (B) Minor diameter to major diameter
  • (C) Volume of grain to volume of a cube
  • (D) Particle perimeter to square root of area

Answer Key:

A

Step-by-Step Solution & Explanation

Roundness measures the sharpness of corners, calculated as $\frac{A_p}{A_c}$ where $A_p$ is largest natural rest projected area and $A_c$ is area of the smallest circumscribing circle.
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