Machine Design
A leaf spring in automobiles is used

To apply forces
To store strain energy
To absorb shocks
To measure forces

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

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

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