QUESTION3 Longitudinal displacemti deto torque and shear str

QUESTION3 Longitudinal displacemti deto torque and shear strain is due to axdia load. O True False QUESTION 4 Maximum shear stress due to torque happens at the center of the circle. True O False QUESTION 5 Modulus of elasticity is for shear stress and modulus of rigidity is for normal stress. O True False

Solution

Ans(3) False (Reason- Longitudional displacement occurs due to axial force and shear strain occurs due to shear stress while torque is nothing but a twisting moment)

Ans(4) False (maximum shear stress occure at the outermost fibre not at the centre)

Ans(5) False (modulus of elasticity is for normal stress (refer to pure bending equation) while modules of rigidity is for shear stress (Refer to Torsion equation))