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
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