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1. The ratio of the inertia force to the viscous force is called
2. A venturiflume is used to measure
3. A flow whose streamline is represented by a straight line, is called __________ dimensional flow.
4. The vacuum pressure is always the negative gauge pressure.
5. The tangential velocity of the water element having a free vortex is
6. The value of coefficient of discharge is __________ the value of coefficient of velocity.
7. The unit of kinematic viscosity in S. I. units is
8. When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as
9. Turbulent flow takes place at high velocities.
10. A fluid whose viscosity does not change with the rate of deformation or shear strain is known as
11. The line of action of the force of buoyancy acts through the centre of gravity of the volume of the liquid displaced.
12. The metacentric height is the distance between the
13. In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice.
14. A flow through an expanding tube at increasing rate is called unsteady non-uniform flow.
15. Viscous force is the __________ of shear stress due to viscosity and cross-sectionar area of flow.
16. The rise, in water level, which occurs during the transformation of the unstable shooting flow to the stable streaming flow is called hydraulic jump.
17. The density of air is same at different heights.
18. The velocity corresponding to Reynold number of 2000 is called
19. The total pressure on a horizontally immersed surface is (where w = Specific weight of the liquid, A = Area of the immersed surface, and x = Depth of the centre of gravity of the immersed surface from the liquid surface)
20. Water is __________ liquid.
Fluid Mechanics MCQ 10
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