The pressure drop needed to force water through a horizontal 1-in.-diameter pipe is 0.40 psi for every 9-ft length of pipe. (a) Determine the shear stress on the pipe wall. Determine the shear stress at distances (b) 0.3 and (c) 0.5 in. away from the pipe wall.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

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

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0