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Pick out the wrong statement. | |
A. | Ductile fracture of a stressed material, which exhibits a large plastic deformation is commonly caused by the formation and coalescence of voids in the necked region. [Wrong Answer] |
B. | Brittle fracture is caused by the propagation of pre-existing cracks in the material and involves minimum plastic deformation. [Correct Answer] |
C. | Fatigue fracture of a material is always brittle in nature and takes place due to the existence of line imperfections. [Wrong Answer] |
D. | Brittle materials are generally tested in tension. [Wrong Answer] |