Answer as many as you can, no solution needed 61. A 10 inch pulley transmits 3 kW to a 17 mm diameter transmission shaft at 500 rpm through an 5 mm x 5 mmx 12.7 mm (w x hx 1) parallel key. Determine the stress in the key in MPa.a.107368b. 26462. A gear pair has a 17T pinion, 68T gear and Pd = 10. Determine the bending stress number (in psi) in thepinion if the tangential load is 525 lb, the face width is 1 inch, Jp = 0.92, and JG = 0.96. Assume all K factorsare equal to 1.a.6640b. 6730a.6b. 7C.d. Answer is not among the choices64. The highest tension in a differential band brake can reach up to 300 lbs. The pressure in the brake materialmust not exceed 250 psi. If the drum has a diameter of 8 in., what is minimum band width, in mm, that canbe recommended?a.9.75b. 12.8C.d.65. If the pitch angle is limited to 12 deg, what should be the minimum mean diameter of a spring with a pitch of6.5 mm?a.2880b. 312068506920C.8d. 9a.12b. 24C.d.66. A squared and ground spring has 21 total number of coils. Its wire diameter and free length are 1.8 mm and100 mm, respectively. Determine the pitch.a.5.07b. 5.4813.514.167. Determine the stress number in a 17T helical gear with F = 0.75 inch, Pnd = 8, p=20 deg and p = 45 if thetrasmitted load is 210 lb. Use J = 0.55.c. 6.12d. 6.79C.d.4130There is insufficient information.68. Determine the required torque capacity of a clutch if it is to transmit 5 kW at 4000 rpm from an electricmotor. Assume heavy duty application where k = 3.0.36C.d. Answer is not among the choices

As per guidelines we need to answer only first question, so please re-post rest questions separately

1. A 10 inch pulley transmits 3 kW to a 17 mm diameter transmission shaft at 500 rpm through an 5 mm x 5 m x 12.7 mm (wxhx 1) parallel key. Determine the stress in the key in MPa. c. 368 d. Answer is not among the choices a. 107 b. 264 2. A gear pair has a 17T pinion, 68T gear and Pd = 10. Determine the bending stress number (in psi) in the pinion if the tangential load is 525 lb, the face width is 1 inch, Jp = 0.92, and JG = 0.96. Assume all K factor are equal to 1. 6640 6730 a. h C. d 6850 6920

1. A 10 inch pulley transmits 3 kW to a 17 mm diameter transmission shaft at 500 rpm through an 5 mm x 5 m x 12.7 mm (wxhx 1) parallel key. Determine the stress in the key in MPa. c. 368 d. Answer is not among the choices a. 107 b. 264 2. A gear pair has a 17T pinion, 68T gear and Pd = 10. Determine the bending stress number (in psi) in the pinion if the tangential load is 525 lb, the face width is 1 inch, Jp = 0.92, and JG = 0.96. Assume all K factor are equal to 1. 6640 6730 a. h C. d 6850 6920

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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1) A pair of cast iron bevel gears connect two shafts at right angles. The pitch diameters of the pinion and gear are 80 mm and 100 mm respectively. The tooth profiles of the gears are of 14 1/2° composite form. The allowable static stress for both the gears is 55 MPa. If the pinion transmits 2.75 kW at 1100 r.p.m., find the module and number of teeth on each gear from the standpoint of strength and check the design from the standpoint of wear. Take surface endurance limit as 630 MPa and modulus of elasticity for cast iron as 84 kN/mm². A0a& ENG 1222/20 nere to search
For a pair of standard gears, the module is m=2.5mm，pressure angle is α=20 0. ha*=1. c*=0.25. The teeth number on gear 1 is z1=22. The standard center distance is a=68.75mm. If the actual center distance is a’=69.75mm, find the working pressure angle α’=( )°
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