Machine Design
When carbon in the cast iron is principally in the form of graphite, the cast iron will be of

Yellow colour
Brown colour
White colour
Grey colour

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Machine Design
In cross or regular lay ropes

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

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