A cast steel pinion (0o = 120 MNm2) rotating at 315 rpm drives a cast steel gear of a different grade (0o = 135 MNm-2) at a velocity ratio of 3.0 to 1.

The pinion has 24 teeth, a module of 6 mm and the pressure angle is 200. Given all the previous calculations, is the dynamic load less
than the allowable wear load?

True
Or
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.