Had the following question on a sample exam recently.
Q: A sample of steel originally 500 mm^2 in area reduces to 385 mm^2 immediately prior to failure in a tensile test. The sample's ductility, in percentage, is most nearly:
A) 23
B 77
C) 100
D) 177
Solution does the calculation of Ductility = (Ao - Af)/A * 100 = 23% But then states the answer is D. I'm guessing it is a typo but wanted to make sure.
Q: A sample of steel originally 500 mm^2 in area reduces to 385 mm^2 immediately prior to failure in a tensile test. The sample's ductility, in percentage, is most nearly:
A) 23
B 77
C) 100
D) 177
Solution does the calculation of Ductility = (Ao - Af)/A * 100 = 23% But then states the answer is D. I'm guessing it is a typo but wanted to make sure.