This document discusses soil consistency and the Atterberg limits test. It defines soil consistency as the ability to resist deformation based on moisture content. The Atterberg limits test determines the liquid limit (LL), plastic limit (PL), and plasticity index (PI) of a soil. The LL is the moisture content where a soil acts like a liquid. The PL is where it acts plastic. The PI is the range of moisture contents between plastic and liquid states. These values classify soil consistency and properties like compressibility.