Allied & ICAR Exam Bank • ALLIED_0672 MCQ • 1 Mark

Section 6: Agricultural Process Engineering

Grain Storage Structures and Silos

Subtopic: Grain Storage Structures and Silos

Question Statement:

A grain bin is classified as a 'shallow bin' (governed by Airy's or Rankine's earth pressure theory) when:

Options:

  • (A) The plane of rupture of the stored grain intersects the free grain surface before intersecting the opposite wall
  • (B) Height is 100 meters
  • (C) Diameter is less than 1 meter
  • (D) Bin has no floor

Answer Key:

A

Step-by-Step Solution & Explanation

If the failure wedge emerges through the top free surface, wall friction does not support the whole bed weight and Rankine/Airy shallow bin theory applies.
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