Machine Design
In cross or regular lay ropes

Wires in two adjacent strands are twisted in opposite direction
Wires are not twisted
Direction of twist of wires in strands is opposite to the direction of twist of strands
Direction of twist of wires and strands are same

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Machine Design
Pitch point of a cam is

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

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