Machine Design
The pipe joint mostly used for pipes carrying water at low pressures is

Union joint
Socket joint
Nipple joint
Spigot and socket joint

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Machine Design
A tap bolt

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

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Machine Design
When the belt speed increases

Power transmitted decreases
Power transmitted increases to a maximum value and then decreases
Power transmitted remains the same
Power transmitted increases

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