The boring bar of a boring machine is 25 mm in diameter. During operat – McqOptions

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1.	The boring bar of a boring machine is 25 mm in diameter. During operation, the bar gets twisted though 0.01 radians and is subjected to a shear stress of 42 N/mm2, The length of the bar is (Taking G = 0.84 105 N/mm2)
A.	500 mm
B.	250 mm
C.	625 mm
D.	375 mm
Answer» C. 625 mm

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