Machine Design
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

3.0
3.5
2.5
2.8

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Machine Design
Turn buckle has

No threads
Right hand threads on bout ends
Left hand threads on one end and right hand threads on other end
Left hand threads on both ends

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