Machine Design
Pitch point of a cam is

Any point on the pitch curve
Any point on the pitch circle
A point on the pitch curve having minimum pressure angle
A point on the pitch curve having maximum pressure angle

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Machine Design
According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by

Equating shearing resistance to the crushing resistance of the rivets
Equating tearing resistance of the plate to the shearing resistance of the rivets
None of these
Equating tearing resistance of the plate to the crushing resistance of the rivets

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