Machine Design
A type of brake commonly used in motor cars is a

Internal expanding brake
Shoe brake
Band brake
Band and block brake

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

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

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