Question

For the consolidation of 50%, find the time factor.

(a) 0.197

(b) 0.564

(c) 0.253

(d) 0.826

This question was addressed to me during an interview.

This interesting question is from Consolidation Problems in portion One Dimensional Consolidation of Geotechnical Engineering I

Answer 1

Right answer is (a) 0.197

Easy explanation: Given, U=50%

For U < 60%,

\(T_v=\frac{π}{4}(\frac{V}{100})^2\)

\((T_v)_{50}=\frac{π}{4}(\frac{50}{100})^2=0.197.\)