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Machine Design

Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

43869
44047
44045
43929

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Machine Design
Oldham coupling is used to connect two shafts

Whose axes intersect at a small angle
Which have lateral misalignment
Which are not in exact alignment
Which are perfectly aligned

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Machine Design
Resistance to fatigue of a material is measured by

Young's modulus
Endurance limit
Coefficient of elasticity
Elastic limit

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Machine Design
The shock absorbing capacity of a bolt may be increased by

Increasing its shank diameter
Decreasing its shank diameter
Tightening the bolt properly
Making the shank diameter equal to core diameter of thread

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Machine Design
A steel containing 0.8% carbon is known as

Hypo-eutectoid steel
None of these
Eutectoid steel
Hypereutectoid steel

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Machine Design
Shaft coupling is used in machinery to

Introduce protection against over loads
All of these
Introduce mechanical flexibility
Reduce the transmission of shock loads

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