Machine Design
The difference between the tooth space and the tooth thickness as measured on the pitch circle, is called

Clearance
Face width
Working depth
Backlash

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Machine Design
In cross or regular lay ropes

Direction of twist of wires and strands are same
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
Wires are not twisted

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Machine Design
Cold working

Has no influence on fatigue strength
Decreases the fatigue strength
Increases the fatigue strength
Alone has no influence on fatigue strength

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