Allied & ICAR Exam Bank • ALLIED_1299 MCQ • 1 Mark

Section 6: Agricultural Process Engineering

Size Reduction and Milling

Subtopic: Flour Milling Break Rolls

Question Statement:

In modern roller wheat flour milling, break rolls have fluted surfaces rotating at differential speeds to:

Options:

  • (A) Open wheat kernels longitudinally and scrape endosperm semolina cleanly away from the bran coat with minimal bran pulverization
  • (B) Crush bran into very fine flour in one pass
  • (C) Remove germ by centrifugal suction
  • (D) Cook the starch granules

Answer Key:

A

Step-by-Step Solution & Explanation

Fluted break rolls employ dull-to-dull or sharp-to-sharp configurations with speed differentials ($2.5:1$) to peel open kernels and shear out endosperm particles while keeping bran intact for sifting.
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