SE 312 QUESTIONS AND ANSWERS 2026 WITH COMPLETE SOLUTION

SE 312 QUESTIONS AND ANSWERS 2026 WITH COMPLETE SOLUTION




Elastic Modulus



Can only be found for materials with linear relationships - (ANSWER)False



Elastic Modulus



Can be approximated for some materials using the 0.2% yield strength method - (ANSWER)False; secant
modulus is used



Elastic Modulus



Relates Stress to strain by Hooke's law - (ANSWER)True (for linear materials)



Tension Yielding



Is a type of failure - (ANSWER)True



Tension Yielding



Is found using the secant modulus - (ANSWER)False (not related)



Tension Yielding



Is the lower yield point fro materials with an upper and lower yield point - (ANSWER)True (upper is
unstable)



What is the difference between Engineering Stress vs True Stress - (ANSWER)Engineering Stress- is
computed using the initial cross section area

, SE 312 QUESTIONS AND ANSWERS 2026 WITH COMPLETE SOLUTION




True Stress- is computed using the instantaneous cross sectional area



Tension Elastic Region



No Permanent deformation - (ANSWER)True



Tension Elastic Region



Always obeys Hooke's Law - (ANSWER)False (PMMA, Cast Iron)



Tension Elastic Region



Materials that fail catastrophically are known to be brittle - (ANSWER)True



Tension Elastic Region



Uniform stress state - (ANSWER)True



Tension Plastic Region



Permanent Deformation - (ANSWER)True



Tension Plastic Region



Young modulus relates stress to strain in this region - (ANSWER)False (Elastic Region)



Tension Plastic Region