3. Which statement is correct? (1 pt) (a) Normal stress is proportional to normal strain (b) Shear stress is proportional to normal strain (c) Shear stress occurs due to normal strain (d) Shear stress...

Mechanics of material Please answer Q3,4


Extracted text: 3. Which statement is correct? (1 pt) (a) Normal stress is proportional to normal strain (b) Shear stress is proportional to normal strain (c) Shear stress occurs due to normal strain (d) Shear stress is minimum at the plane which is 65° inclined 4. Which statement is correct? (1 pt) (a) Hooke's law is valid for nonlinear portion of stress-strain diagram (b) Hooke's law is valid for linear portion of stress-strain diagram (c) Necking is observed in linear region (d) Yield stress is the maximum point in the stress-strain diagram