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Machine Design

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

Perpendicular
Both A and B
Parallel
None of these

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Machine Design
Stress concentration factor is defined as the ratio of

Nominal stress to the maximum stress
Maximum stress to the endurance limit
Maximum stress to the nominal stress
Nominal stress to the endurance limit

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Machine Design
For general industrial machinery, the ratio of the length of journal to its diameter is taken as

5 to 10
0.5 to 1
3 to 5
1 to 2

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Machine Design
The bending stress in a curved beam is

Maximum at the neutral axis
None of these
Zero at the centroidal axis
Zero at the point other than centroidal axis

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Machine Design
In a butt welded joint, the size of weld is __________ the throat of weld.

Equal to
0.5 times
2 times
Double

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Machine Design
In designing a key, it is assumed that the distribution of forces along the length of key

Varies exponentially, being less at the torque-input end
Varies linearly
Varies exponentially, being more at the torque-input end
Is uniform throughout

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