2. Pick up the correct statement from the following:
Options
A. When water table is above the base of a footing, the dry weight m should be used for soil below water table
B. When water table is located somewhat below the base of a footing, the elastic wedge is partly of moist soil and partly of submerged soil, and a suitable reduction factor is used
C. When water table is just at the base of the footing, no reduction factor is used
Correct Answer: When water table is located somewhat below the base of a footing, the elastic wedge is partly of moist soil and partly of submerged soil, and a suitable reduction factor is used
4. A compacted soil sample using 10% moisture content has a weight of 200 g and mass unit weight of 2.0 g/cm3. If the specific gravity of soil particles and water are 2.7 and 1.0, the degree of saturation of the soil is
8. A flow line makes angles ?1 and ?2 with the normal to the interface of the soils having permeabilities k1, k2 before and after deflection. According to the law of deflection of the flow lines at the interface of the dissimilar soils
