A compacted fill is to be constructed to support a new highway. The fill material will be taken from a location (“borrow pit”) where the in-place dry unit weight is 105 pcf and the water content is 9%. The soil will be excavated from the borrow pit, moistened to increase the water content to 13.5% and then compacted to a final dry unit weight of 118 pcf. The total final volume of the compacted fill will be 250,000 yd3.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

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.

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false