Question Bank • QB_SUB_APE_0049 MCQ • 1 Mark

Section 6: Agricultural Process Engineering

Size Reduction and Material Handling

Subtopic: Particle size analysis for comminuted solids

Question Statement:

The aperture openings in successive sieves of the Tyler Standard Sieve Series follow a geometric progression with a common ratio of:

Options:

  • (A) $\sqrt{2} \approx 1.414$
  • (B) 2.0
  • (C) 10.0
  • (D) $\sqrt{3} \approx 1.732$

Answer Key:

A

Step-by-Step Solution & Explanation

Tyler standard sieve apertures scale geometrically with ratio $\sqrt{2} = 1.414$, so the area of screen openings doubles with each successive sieve.
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