The state of stress at a point is given as σx = 100 N/mm2, σy = 4 – McqOptions

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1.	The state of stress at a point is given as σx = 100 N/mm2, σy = 40 N/mm2 and τxy = 40 N/mm2 . If the yield strength Sy of the material is 300 MPa, the factor of safety using maximum shear stress theory will be
A.	3
B.	2.5
C.	7.5
D.	1.25
Answer» C. 7.5

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