Machine Design
When the connected members are very yielding (soft gasket) as compared to the bolt, then the resultant load on the bolt will be equal to the

External load applied
Initial tension
Sum of the initial tension and external load applied
Initial tension or external load, whichever is greater

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Machine Design
Crowning on pulley helps

To increase pulley life
To keep the belt in centre on a pulley while it is in motion
In increasing the slip of the belt
In decreasing the slip of the belt

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Machine Design
In case of V belt drive

None of these
The belt should touch the bottom of groove in the pulley
The belt should not touch the bottom of groove in the pulley
The belt should not touch the sides of groove in the pulley

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Machine Design
For unequal width of butt straps, the thicknesses of butt straps are

0.75 t for narrow strap on the inside and 0.625 t for wide strap on the outside
0.75 t for wide strap on the inside and 0.625 t for narrow strap on the outside
0.625 t for both the straps on the inside and outside
0.75 t for both the straps on the inside and outside

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