1. What is meant by a point of contra flexure?
2. Write down two kinds of trusses.
3. Describe poisson’s ratio and Bulk modulus.
4. Explain principal stress and principal plane.
5. Write down the difference between closed and open coiled helical springs.
6. Explain strain energy and write down its unit.
7. Define Newton’s law of viscosity.
8. Write down the difference between laminar flow and turbulent flow.
9. Write down the major components of a pelton wheel.
10. What is meant by negative Slip? Describe when it will occur?