A tensile impact bar has a small transverse hole. Determine the factor by which the hole reduces the impact energy absorbing capacity of the bar. Assume under impact loading, the rod material exhibits brittle behavior.

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

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length