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

2.5
3.0
2.8
3.5

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Machine Design
Turn buckle has

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

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Machine Design
The designation M 33 × 2 of a bolt means

Metric threads with cross-section of 33 mm
Bolt of 33 mm nominal diameter having 2 threads per cm
Metric threads of 33 mm outside diameter and 2 mm pitch
Metric threads of 33 numbers in 2 cm

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