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Question
A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be
Options:
A .  2.5
B .  2.8
C .  3.0
D .  3.5
Answer: Option B

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