Allied & ICAR Exam Bank • ALLIED_1269 NAT • 2 Marks

Section 6: Agricultural Process Engineering

Size Reduction and Milling

Subtopic: Fineness Modulus

Question Statement:

In a Tyler standard sieve analysis of 250 g ground cattle feed using 7 standard sieves, the sum of cumulative mass percentages retained on all sieves is 280. The Fineness Modulus ($FM$) of the ground sample is:

Answer Key:

2.8

Step-by-Step Solution & Explanation

Fineness Modulus $FM = \frac{\sum (\text{Cumulative }\%\text{ retained on 7 standard sieves})}{100} = \frac{280}{100} = 2.80$.
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