Machine Design
In composite or reverse laid ropes

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
Wires in two adjacent strands are twisted in opposite direction
Wires are not twisted

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Machine Design
Form coefficient of spring is

Its capability of storing energy
Concerned with strength of wire of spring
Ratio of coil diameter to wire diameter
Load required to produce unit deflection

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