GATE CE 2025 Set 1 — Question 33
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Question
If the weights retained on the , , , and sieves are , , , and , respectively, of the total weight of an aggregate sample, then the fineness modulus of the sample is __________________ (rounded off to 2 decimal places).
Correct answer
3.74 to 3.76
Solution
Fineness Modulus (FM) is calculated as the sum of cumulative percentages of weight retained on a standard set of sieves (, , , , , , , , , ) divided by 100.
Sum of cumulative percentages = .
.
| Sieve Size | % Weight Retained | Cumulative % Weight Retained |
|---|---|---|
| and above | ||
.
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