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Machine Design

Machine Design
In radial bearings, the load acts __________ to the axis of rotation.

Perpendicular
Parallel
None of these
Both A and B

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

Higher
Lower
None of these
Same

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Machine Design
The taper on key is given on

Top side only
Any side
On both sides
Bottom side only

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Machine Design
A universal coupling is used to connect two shafts

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

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Machine Design
An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by

All of these
Decreasing the modulus of elasticity of the bar
Decreasing the cross-sectional area of the bar
Increasing the length of bar

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Machine Design
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set in order to

Ensure uniform loading
Reduce vibration
Reduce slip
Ensure proper alignment

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