GEOTECHNICAL ENGINEERING EXAM 2 (LATEST)
2025/26 QUESTIONS WITH 100% CORRECT ANSWERS.
Soil Compaction Answer - Densification by removal of air instantaneously
Soil consolidation Answer - Removal of water in saturated conditions, time
dependent
Purposes of Soil Compaction Answer - Increased shear strength, stiffness
Improved quality control, erosion resistance
Decreased hydraulic conductivity, liquefaction potential
To determine the DRY unit weight: Answer - 1. Measure TOTAL unit weight
2. Measure w, moisture content
3. Calculate yd = y/(1+w)
Relative Density Answer - Dr = (emax - e) / (emax - emin)
Compaction Curve Answer - X axis: Water content
Y axis: Dry Unit Weight
Creates an upside down parabola shape
Standard Proctor Test Answer - Plot points on compaction curve. The peak is
the max yd and optimum water content
2025/26 QUESTIONS WITH 100% CORRECT ANSWERS.
Soil Compaction Answer - Densification by removal of air instantaneously
Soil consolidation Answer - Removal of water in saturated conditions, time
dependent
Purposes of Soil Compaction Answer - Increased shear strength, stiffness
Improved quality control, erosion resistance
Decreased hydraulic conductivity, liquefaction potential
To determine the DRY unit weight: Answer - 1. Measure TOTAL unit weight
2. Measure w, moisture content
3. Calculate yd = y/(1+w)
Relative Density Answer - Dr = (emax - e) / (emax - emin)
Compaction Curve Answer - X axis: Water content
Y axis: Dry Unit Weight
Creates an upside down parabola shape
Standard Proctor Test Answer - Plot points on compaction curve. The peak is
the max yd and optimum water content
