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Q: Which method is used to obtain yield point?
  • A. On-set method
  • B. Off-set method
  • C. Yield stress
  • D. None of these
Correct Answer: Option B - Off-set method of determining– The offset yield strength method is an arbitrary method of estimating of elastic limit of a material. • Offset yield strength is the stress that corresponds to a point at the Intersection of a stress-strain curve and a line that is parallel to the specified modulus of the elasticity line. • This parallel line is offset horizontally by a pre determined amount. • The intersection point represents the yield point of the material being tested.
B. Off-set method of determining– The offset yield strength method is an arbitrary method of estimating of elastic limit of a material. • Offset yield strength is the stress that corresponds to a point at the Intersection of a stress-strain curve and a line that is parallel to the specified modulus of the elasticity line. • This parallel line is offset horizontally by a pre determined amount. • The intersection point represents the yield point of the material being tested.

Explanations:

Off-set method of determining– The offset yield strength method is an arbitrary method of estimating of elastic limit of a material. • Offset yield strength is the stress that corresponds to a point at the Intersection of a stress-strain curve and a line that is parallel to the specified modulus of the elasticity line. • This parallel line is offset horizontally by a pre determined amount. • The intersection point represents the yield point of the material being tested.