A 24-tooth spur gear is to drive a 12-tooth spur gear. For both gears, the diametral pitch is 12 tooth/in. The gears are cut on the 20° full-depth involute system.
Find and tabulate the addendum, dedendum, clearance, circular pitch, base pitch, tooth thickness at the pitch circle, pitch diameters, base circle radii, and contact ratio.

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

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 filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody