Question

Assertion (A) : For a fully saturated soil, the pore pressure parameter is equal to zero.

Reason (R) : The compressibility of water is much smaller than the coefficient of volume compressibility.

• A. both A and R are true and R is the correct explanation of A
• B. both A nd R are true R is not a correct explanation of A
• C. A is true but R is false
• D. A is false but R is true

Answer 1

The correct option is D A is false but R is true

The pore pressure parameter B is equal to one for fully saturated condition because the compressibility of water is small compared to coefficient of volume compressibility of soil sample.

$B=\frac{1}{1+n\left(C_v/C_s\right)}$