Allied & ICAR Exam Bank • ALLIED_0626 MCQ • 1 Mark

Section 6: Agricultural Process Engineering

Size Reduction and Milling

Subtopic: Size Reduction and Milling

Question Statement:

Rittinger's law of comminution states that the energy consumed in size reduction is directly proportional to:

Options:

  • (A) The new surface area created during grinding ($E = K_R [1/L_2 - 1/L_1]$)
  • (B) The volume of particles reduced
  • (C) The logarithm of the size reduction ratio
  • (D) The mass squared

Answer Key:

A

Step-by-Step Solution & Explanation

Rittinger's hypothesis states energy required is proportional to extension of surface area: $dE / dL = -C L^{-2} \implies E = K_R (1/L_2 - 1/L_1)$.
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