11. The meatcentric height of a ship is 0.6 m and the radius of gyration is 4 m. The time of rolling of a ship is
12. When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis $$\omega $$ rad/s, then depth of parabola which the liquid assumes is
13. The body will sink down if the force of buoyancy is __________ the weight of the liquid displaced.
14. The body will float if the force of buoyancy is __________ the weight of the liquid displaced.
15. The total pressure on an immersed surface inclined at an angle $$\theta $$ with the liquid surface is
16. The property of a liquid which offers resistance to the movement of one layer of liquid over another adjacent layer of liquid, is called
17. Liquids
18. The discharge through a channel of rectangular section will be maximum, if
19. A balloon lifting in air follows the following principle
20. A weir, generally, used as a spillway of a dam is
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