Determining the relationship between moisture content and dry unit weight is a cornerstone of geotechnical engineering, ensuring that foundations, roads, and embankments do not fail under load. The Soil Proctor Compaction Test Apparatus provides the standardized means to achieve this, allowing engineers to identify the optimum moisture content OMC for maximum dry density. When soil is compacted, air is expelled, increasing the soils shear strength and reducing its permeability and compressibility. However, the efficiency of this process depends heavily on the water present; too little water creates too much friction between particles, while too much water occupies space that should be filled by soil solids.