Aparallel helical gearset consists of a 19-tooth pinion driving a 57-tooth gear. the pinion has a left-hand helix angle of 30, a normal pressure angle of 20, and a normal module of 2.5 mm. find: (a) the normal, transverse, and axial circular pitches (b) the transverse diametral pitch and the transverse pressure angle (c) the addendum, dedendum, and pitch diameter of each gear

Aseries piping system conveys methyl alcohol. the system consists of 70 m of 1- nominal pipe follow by 50 m of 2-nominal pipe, both schedule 40 commercial steel. the 1-nominal pipe contains 3 90° elbows (regular) anda fully open gate valve, all threaded. the pressure drop through the system is 150 kpa. determine the volume flow rate through the system that is horizontally laid.