Allied & ICAR Exam Bank • ALLIED_0597 MCQ • 1 Mark

Section 6: Agricultural Process Engineering

Engineering Properties of Grains

Subtopic: Engineering Properties of Grains

Question Statement:

The bulk density of grain invariably decreases with increasing moisture content primarily because:

Options:

  • (A) Volumetric kernel swelling expands the bulk volume faster than the mass gained from absorbed water
  • (B) Water has zero mass
  • (C) Kernels dissolve in water
  • (D) Intergranular friction drops to zero

Answer Key:

A

Step-by-Step Solution & Explanation

Water adsorption causes radial grain expansion, increasing void fraction and reducing bulk packing efficiency, thereby lowering bulk density.
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