If bending stress in a screw is of magnitude 95N/mmÂ² and torsional shear stress of magnitude 15N/mmÂ², then what is the principal shear stress?

Mechanical Engineering : Machine Design - Quiz(MCQ)

48.7N/mmÂ²

49.8 N/mmÂ²

51.4 N/mmÂ²

54.3 N/mmÂ²

Correct Answer : Option (B) : 49.8 N/mmÂ²

Explanation : τ(max)=√(95/2)²+15².

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