The composite shaft consists of a 0.25-in.-thick bronze jacket (g = 5, 600 ksi) bonded to a 1.25-in.-diameter steel core (g = 11, 000 ksi). the allowable shearing stress in the bronze jacket is 3.0 ksi and 6.5 ksi in the steel core. determine (a) the largest torque which can be applied to the shaft, (b) the corresponding angle of twist of end b relative to end a.

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.

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