1.

Principal stresses at a point are 80 N/mm2 and 40 N/mm2, both tensile. The yield stress in simple tension for this material is 200 N/mm2. The values of factors of safety according to maximum principal stress theory and maximum shear stress theory, respectively, are

A. 2.5 and 2.5
B. 2.5 and 5
C. 5 and 5
D. 5 and 1.67
Answer» C. 5 and 5


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