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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit discharge through the turbine is

Q/H²
Q/H
Q/√H
Q/H3/2

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Hydraulics and Fluid Mechanics in ME
A flow in which the viscosity of fluid is dominating over the inertia force is called

Laminar flow
Unsteady flow
Steady flow
Turbulent flow

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Hydraulics and Fluid Mechanics in ME
The loss of head at exit of a pipe is (where v = Velocity of liquid in the pipe)

0.75v²/2g
0.5v²/2g
0.375v²/2g
v²/2g

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Hydraulics and Fluid Mechanics in ME
For very high discharge at low pressure such as for flood control and irrigation applications, following type of pump is preferred

Mixed flow
Centrifugal
Reciprocating
Axial flow

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Hydraulics and Fluid Mechanics in ME
Euler's equation in the differential form for the motion of liquids is given by

dp/ρ - g.dz + v.dv = 0
dp/ρ + g.dz + v.dv = 0
ρ.dp - g.dz + v.dv = 0
ρ.dp + g.dz + v.dv = 0

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Hydraulics and Fluid Mechanics in ME
The flow in which the particles of a fluid attain such velocities that varies from point to point in magnitude and direction as well as from instant to instant, is known as

Uniform flow
One dimensional flow
Steady flow
Turbulent flow

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