Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the ______________ stress?

Non-ferrous metals and hard steels do not exhibit a definite yield poi

1.	Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the ______________ stress?
A.	Ultimate
B.	Yield point
C.	Proof
D.	None of these
Answer» D. None of these