1. Shear stress on principal planes is ............

2. The principle of virtual work can be applied to elastic system by considering virtual work of .............

3. The centre of gravity of a right circular solid cone is at a distance of ............ from its base, measured along vertical axis.

4. Principle plane is a plane on which shear stress is ............

5. The load at which column just buckles, is known as ............

6. Which of following is a relatively ductile material?

7. The equation connection Yong's modulus (E) Poisson's (1/m) and Modulus of Rigidity (C), is ............

8. If a shaft subjected to pure torsion cracks, crack will start ............

9. The radius of gyration of a section of area A and least moment of inertia I about centroidal axis is ............

10. A column that fails due to direct stress, is called ............