Q: A specimen of steel having an original diameter of 12·8 mm is tensile tested to fracture and found to have engineering fracture strength σ_f of 460 MPa. If its cross-sectional diameter at fracture is 10·7 mm, the ductility in terms of percent reduction in area will be
(a)25%
(b)30%
(c)35%
(d)40%
Correct Answer: (b)
The correct answer is (a) '25%'. This question from the Science & Technology domain tests knowledge of Chemistry.