A stratum of sand and a stratum of clay have the same thickness of 3 m. The coefficient of compressibility of sand is one fifth of coefficient of compressibility of clay and the permeability of sand is 10,000 times that of the clay. Assuming the same initial void ratio the ratio of the consolidation time for the clay to that of the sand for same degree of consolidation is

Coarse sand and medium sand (assuming same mineralogical composition) will have the same particle density. True False

If the sensitivity of a clay is four and it's undisturbed strength is 300 units, the dis- turbed strength of that clay will be:

11.5 Following are the results of a laboratory consolidation test on a sample of undis- turbed clay obtained from the field. Pressure, o' (kg/cm?) Final helght of specimen (cm) 2.540 0.5 2.519 1.0 2.5 2.0 2.428 4.0 2.322 8.0 2.206 16.0 2.09 © Cengage laeming 2014