Question

The minimum water content at which soil is fully saturated is ____

• A. Liquid limit
• B. Plastic limit
• C. Shrinkage limit
• D. Hygroscopic

Hint:

Atterberg Limits: \[ \boxed{ \begin{aligned} \text{Liquid Limit (LL)} &\rightarrow \text{Liquid to Plastic}\\ \text{Plastic Limit (PL)} &\rightarrow \text{Plastic to Semi-solid}\\ \text{Shrinkage Limit (SL)} &\rightarrow \text{Semi-solid to Solid} \end{aligned} } \] At the shrinkage limit, the soil is just saturated.

Answer 1

The Correct Option is C

Step 1: Recall the definition of shrinkage limit. Shrinkage limit is the water content at which further drying does not produce any decrease in the volume of the soil.

Step 2: State the saturation condition. At the shrinkage limit, the soil is just fully saturated. Below this water content, air starts entering the voids and the soil is no longer fully saturated. Hence, \[ \boxed{\text{Shrinkage limit}} \] Therefore, \[ \boxed{(C)} \] is the correct answer.