For medium silt whose average grain size is 0.25mm, Lacey's silt factor is likely to be :

Question

Question

This question was previously asked in

UKPSC JE Civil 8 May 2022 Official Paper-II

Answer 1

Concept:

As per Lacey's Theory;

f = 1.76√d

Where, f = silt factor, and d = average grain size in mm.

Calculation:

Given; d = 0.25 mm

f = 1.76√0.25 = 0.88

Hence option (4) is the correct answer.

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