Question 1 A pair of spur gears with 20 degree, full-depth, involute teeth transmits 7.5 HP. The pinion is mounted on the shaft of an electric motor operating at 1750 rpm. The pinion has 20 teeth and a diametral pitch of 12. The gear has 72 teeth. Compute the following: A. What is the rotational speed of the gear (RPM)? (+/-.1) 486.1 Question 2 B. The velocity ratio of the gear pair? (+/-.1) Question 3 C. The pitch diameter of the gear in inches? (+/-.001) 1 pts 1 pts 1 pts Question 4 D. What is the center distance between the two shafts carrying the pinion and gear? (+/- .001 inches) Question 5 E. The pitch line speed for both the pinion and the gear? (+/- .1 Ft/Min) Question 6 F. What is the torque on the pinion shaft? (+/- 1 Lbin) 1 pts 1 pts 1 pts Question 7 F. What is the torque on the gear shaft? (+/- 1 lbin) Question 8 G. What is the tangential force acting on the pinion and the gear? (+/- 1 lb) Question 9 H. The radial force acting on the teeth of each gear? (+/- 1 lb) 1 pts 1 pts 1 pts Question 10 I. The normal force acting on the teeth of each gear? (+/- 1 lb) Question 11 1 pts 1 pts #8. Specify a suitable quality number for the gears in the drive for a grain harvester. What is the Av number (only)? Question 12 #14. Specify a suitable quality number (Av) for the gears of problem #1 if the drive is a part of a precision machine tool. (Av number only) 1 pts