Machine Design
The radial distance from the __________ to the clearance circle is called working depth.

Pitch circle
Addendum circle
Dedendum circle
None of these

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

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

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