GATE CE 2019 Set 2 — Question 17
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Question
If the fineness modulus of a sample of fine aggregates is 4.3, the mean size of the particles in the sample is between
Correct answer
(C) 1.18 mm and 2.36 mm
Solution
Fineness Modulus (FM) is an index that represents the average size of particles in an aggregate sample. It is determined by a sieve analysis using a standard set of sieves: (1), (2), (3), (4), (5), (6), (7), (8), (9), and (10). An FM of 4.3 indicates that the mean size lies between the sieve () and the sieve () from the bottom.
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