Machine Design
In cylindrical cams, the follower moves

In a direction perpendicular to the cam axis
In a direction parallel to the cam axis
Along the cam axis
In any direction irrespective of cam axis

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

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

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