Machine Design
When a bolt is subjected to an external load, the stress induced in the bolt will be

Combined tensile and shear stress
Any one of these
Shear stress
Tensile stress

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Machine Design
Stress concentration is caused due to

Abrupt change of section
All of these
Variation in properties of material from point to point in a member
Pitting at points or areas at which loads on a member are applied

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Machine Design
A bolt

Is provided with pointed threads
Has head at one end and other end fits into a tapped hole in the other part to be joined
Has a head on one end and a nut fitted to the other
Has both the ends threaded

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Machine Design
Set screws are

Similar to stud
Slotted for a screw driver and generally used with a nut
Similar to small size tap bolts except that a greater variety of shapes of heads are available
Used to prevent relative motion between parts

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