Which of the following is not a characteristic observed in material failure by fatigue fracture ?
A. Plastic deformation of material does not occur
B. Initiation of crack from below the surface does not occur
C. Initation of crack occurs on the surface of the machine part
D. Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface
Answer: Option B
This Question Belongs to Chemical Engineering >> Chemical Engineering Basics
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