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Machine Design

Machine Design
The shear modulus of resilience is proportional to

Shear stress
(Shear stress)²
(Shear stress)3
(Shear stress)⁴

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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

Reduce vibration
Ensure proper alignment
Reduce slip
Ensure uniform loading

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Machine Design
In radial cams, the follower moves

In a direction perpendicular to the cam axis
In any direction irrespective of cam axis
Along the cam axis
In a direction parallel to the cam axis

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Machine Design
When a close coiled helical spring is compressed, its wire is subjected to

Compression
Shear
All of these
Tension

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Machine Design
When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus.

20 times
5 times
15 times
10 times

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Machine Design
Which of the following is not correct procedure to increase the fatigue limit?

Under stressing
Surface decarburisation
Shot peening
Cold working

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