A 10-ft-thick silty clay layer is subjected to a load that results in total primary consolidation settlement of 0.85 inches. The clay is sandwiched between two sand layers and has an initial void ratio of 0.76, a coefficient of compression of 0.45, a coefficient of recompression of 0.07 and a coefficient of consolidation of 0.034 in2/year. Calculate the settlement at the end of 2 years and determine the time in days for 0.60 inches of settlement.

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?

Air inially occupying a volume of 1 m2 at 100 kpa, 27 c undergoes three internally reversible processes in series. process 1-2 compression to 500 kpa during which pv constant process 2-3 adiabatic expanslon to 100 kpa process 3-1: constant-pressure expansion to 100 kpa (a) calculate the change of entropy for each of the three processes. (b) calculate the heat and work involved in each process. (c) is this cycle a power cycle or refrigeration cycle?