The loss of head at entrance in a pipe is (where v = Velocity of liquid in the pipe)

More Questions from Hydraulics and Fluid Mechanics

• In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice.
• The discharge through a small rectangular orifice is given by (where Cd = Coefficient of discharge for the orifice, a = Cross-sectional area of the orifice, h = Height of the liquid above the centre of the orifice)
• An open tank containing liquid is moving with an acceleration on an inclined plane. The inclination of the free surface of the liquid will be __________ to the acceleration of the tank.
• The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called
• The flow in a pipe is turbulent when Reynold number is
• The specific weight of sea water is __________ that of pure water.
• According to Pascal's law, the intensity of pressure at any point in a fluid at rest is the same in all directions.
• The intensity of pressure on an immersed surface __________ with the increase in depth.
• In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.
• The flow in a pipe is neither laminar nor turbulent when Reynold number is

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