Machine Design
The flank of the tooth is the

Width of the tooth measured along the pitch circle
Surface of the tooth below the pitch surface
Surface of the tooth above the pitch surface
Surface of the top of the tooth

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Machine Design
Which is correct statement? Stress concentration in cyclic loading is

Seriousness would depend on other factors
Equally serious in both types of materials
Very serious in ductile materials and less serious in brittle materials
Very serious in brittle materials and less serious in ductile materials

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