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Machine Design

 A flange of radius 200mm is fastened to the machine screw by means of four cap screws of pitch circle radius 150mm. The external force P is 20kN which is loaded at 160mm from the machine screw. There are two dowel pins to take shear load. Determine the core diameter of cap screw if permissible tensile stress in cap screw is 40N/mm².
a) None of the listed
b) 11.21mm
c) 12.33mm
d) 14.12mm

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Answer #1

Answer: c
Explanation: Maximum tensile force=4777.6N or πd² x σ/4=4777.6N.

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