An SP soil has a natural water content of 27.50% and total unit weight of 19.50 kN/m3 . The void ratios corresponding to the densest and loosest state of the soil are 0.51 and 0.87, respectively. Find the relative density and degree of saturation for this soil. Gs =270

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Fluids at rest possess no flow energy. a)- true b)- false

The higher the astm grain size number, the finer the gran is. a)-true b)-false