Oil is pumped from the lower reservoir to the upper reservoir at a rate of 0.40m ^ 3 / s . The is well smooth (r / d > 0.2) and the exit is sharped edge shown in the sketch . The pump efficiency is 80%

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

Aheavily insulated piston-cylinder device contains 0.02 m3 of steam at 300 kpa and 200 °c. 1.2 mpa. d this process. team is now compressed in a reversible manner to a pressure of etermine the entropy change and the work done on the steam during this process

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)