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

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
Seriousness would depend on other factors

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Machine Design
When the belt speed increases

Power transmitted decreases
Power transmitted increases to a maximum value and then decreases
Power transmitted increases
Power transmitted remains the same

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