A 35° API distillate at 60 °F is to be pumped a distance of 2,000 ft through a 4 inch schedule 40 horizontal pipeline at a flow rate of 500 gpm. What power must the pump deliver to the fluid if the pipeline is made of (a) plastic drawn tubing; (b) commercial steel (light rust); (c) galvanized iron? Assume the pipe is horizontal, and that P1 = P2.

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.

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false