1 List the different types of stresses considered in machine design. And explain tensile and shear stress Explain the Hooke's law with a neat sketch for ductile materials 2 3 Derive the relation between bulk modulus and modulus of rigidity with usual notations. 4 5 6 Write a detailed note on: Contact stresses and its examples Define and explain the following: a) Modulus of elasticity b) Modulus of rigidity c) Lateral Strain d) Thermal Strain e) Poisson's ratio What is modulus of elasticity, modulus of rigidity, Poisson's ratio. Give relation between them.