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Machine Design

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

Higher
Lower
Same
None of these

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Machine Design
In a flange coupling, the bolts are subjected to

Shear stress
Tensile stress
None of these
Compressive stress

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Machine Design
The cold working of metals is carried out __________ the recrystallization temperature.

Above
At
None of these
Below

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Machine Design
Resistance to fatigue of a material is measured by

Elastic limit
Coefficient of elasticity
Endurance limit
Young's modulus

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Machine Design
The coefficient of friction in belt drive depends upon

Material of pulley
Belt velocity
Material of belt
Materials of belt and pulley

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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

3.5
2.5
3.0
2.8

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