In an unconsolidated undrained triaxial test, it is observed that an increase in cell pressure from 150 $\mathrm{kPa}$ to $250 \mathrm{kPa}$ leads to a pore pressure increase of $80 \mathrm{kPa}$. It is further observed that, an increase of $50 \mathrm{kPa}$ in deviatoric stress results in an increase of $25 \mathrm{kPa}$ in the pore pressure. The value of Skempton's pore pressure parameter $B$ is:

(A) 0.5

(B) 0.625

(C) 0.8

(D) 1.0

In an unconsolidated undrained triaxial test, it is observed that an increase in cell pressure from 150 $\mathrm{kPa}$ to $250 \mathrm{kPa}$ leads to a pore pressure increase of $80 \mathrm{kPa}$. It is further observed that, an increase of $50 \mathrm{kPa}$ in deviatoric stress results in an increase of $25 \mathrm{kPa}$ in the pore pressure. The value of Skempton's pore pressure parameter $B$ is:

(A) 0.5

(B) 0.625

(C) 0.8

(D) 1.0

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