1. A cone penetration test was conducted in a layer of saturated clay. The cone tip resistance, qc, at 6.7 m below the ground surface was found to be 1245 kN/m2. If the unit weight of the saturated clay is 18.5 kN/m3, estimate the undrained shear strength of the clay.
2. During a field exploration program, rock was cored for a length of 2438 mm and the length of the rock core recovered was 1371 mm. Determine the recovery ratio.