For a soil sample, the liquid limit is 32% and the plastic limit is 20%. What is the plasticity index (PI) g

Answer : The plasticity index (PI) is 12 %.

Explanation :

Plasticity index (PI) : It is a measure of the plasticity of a soil.

The plasticity index is the difference between the liquid limit and the plastic limit.

Formula used:

PI = LL - PL

where,

PI = Plasticity index

LL = Liquid limit

PL = Plastic limit

As we are given that:

Liquid limit = 32 %

Plastic limit = 20 %

Now putting all the given values in the above formula, we get:

PI = LL - PL

PI = 32 % - 20 %

PI = 12 %

Therefore, the plasticity index (PI) is 12 %.

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