Allied & ICAR Exam Bank • ALLIED_0950 NAT • 2 Marks

Section 6: Agricultural Process Engineering

Size Reduction and Separation

Subtopic: Size Reduction and Particle Analysis

Question Statement:

The 200-mesh base sieve in the Tyler scale has opening width $D_1 = 0.074\text{ mm}$. The aperture of a screen two sizes larger in the standard $\sqrt{2}$ series is $D_3 = D_1 \times (\sqrt{2})^2 = D_1 \times 2.0$. The opening size $D_3 = 0.074 \times 2.0$ in mm is:

Answer Key:

0.148

Step-by-Step Solution & Explanation

$D_3 = 0.074 \times 2.0 = 0.148\text{ mm}$ (corresponding to the 100-mesh sieve).
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