Machine Design
If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited

Buttress
BSW
Square
Acme

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Machine Design
When the belt is transmitting maximum power,

The tension in tight side is twice the centrifugal tension
The tension in slack side is equal to the centrifugal tension
None of these
The tension in tight side is thrice the centrifugal tension

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Machine Design
A stud

Has head at one end and other end fits into a tapped hole in the other part to be joined
Has a head on one end and a nut fitted to the other
Has pointed threads
Has both the ends threaded

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