FLUID MECHANICS 1.A solid has relative density x(x<1).It is made to float in water . WHAT FRACTION IS UNDER WATER? 2.Water wets glass but mercury does not. Why? 3.For a submerged body centre of buoyancy lies above centre of gravity. Is it stable? 4.A solid cylinder of diameter 4m has height 4m.its relative density is 0.6 and is floating with its axis vertical.Identify type of equilibrium? 5.what are the assumptions for bernoullis equation? 6.Which has higher pressure 760 mm of mercury or 10m of water? 7. In Fluid mechanics what is the difference between Lagrangian and eulerian methods? 8.Water flows through a triangular right angled weir and then through a rectangular weir 1m wide at depth of 150mm.take coefficient of discharge for rectangular and triangular weir as .62 and .59 respectively.find the depth of triangular weir? 9. Obtain a relation between SI and CGS units of dynamic viscosity? 10. What is the difference between absolute pressure and gauge pressure?
