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Machine Design

Machine Design
The stress in the threaded part of the bolt will be __________ as compared to the shank.

Lower
None of these
Same
Higher

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Machine Design
When a circular beam of diameter d is subjected to a shear force F, the maximum shear stress induced will be

8F/ πd²
4F/ πd²
16F/ 3πd²
6F/ πd²

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Machine Design
In cyclic loading, stress concentration is more serious in

Brittle materials
Brittle as well as ductile materials
Ductile materials
Elastic materials

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Machine Design
Auto frettage is the method of

Pre-stressing thick cylinders
Increasing the life of thick cylinders
Joining thick cylinders
Calculating stresses in thick cylinders

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Machine Design
Maximum principal stress theory is applicable for

Ductile materials
Brittle materials
All of these
Elastic materials

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Machine Design
In unilateral system of tolerance, the tolerance is allowed on

Both sides of the actual size
One side of the nominal size
Both sides of the nominal size
One side of the actual size

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