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Soil Mechanics and Foundation Engineering

Q1:

If the coefficients of volume change and compressibility of a soil sample are respectively 6.75 x 10-2 and 3 x 10-2, the void ratio of the soil sample, is

A 1.10

B 1.15

C 1.20

D 1.25

E 1.30

ANS:D - 1.25

Coeff.compressibility = Coeff.volume change/(1 + e). (1 + e) = Coeff.volume change/Coeff.compressibility. e = (Coeff.volume change/Coeff.compressibility) - 1. e = ((6.75 x 10-2)/(3 x 10-2)) - 1. e = 2.25 - 1. e = 1.25.



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