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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A turbine pump is basically a centrifugal pump equipped additionally with

Backward curved blades
Inlet guide blades
Vaned diffusion casing
Adjustable blades

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Hydraulics and Fluid Mechanics in ME
In impulse Turbine, energy available at the inlet is in the form of

Strain Energy
Potential Energy
None of these
Kinetic energy

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Hydraulics and Fluid Mechanics in ME
A metal with specific gravity of 'a' floating in a fluid of same specific gravity 'a' will

Float over fluid
Partly immersed
Be fully immersed with top surface at fluid surface
Sink to bottom

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Hydraulics and Fluid Mechanics in ME
Newton’s law of viscosity relates

viscosity and rate of angular deformation
shear stress and rate of angular deformation
intensity of pressure and rate of angular deformation
shear stress, viscosity and temperature

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Hydraulics and Fluid Mechanics in ME
The flow in a pipe is neither laminar nor turbulent when Reynold number is

Less than 2000
Between 2000 and 2800
None of these
More than 2800

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Hydraulics and Fluid Mechanics in ME
The discharge of a double acting reciprocating pump is (where L = Length of stroke, A = Cross-sectional area of piston, and N = Speed of crank in r.p.m.)

(L.A.N)/60
2 L.A.N
L.A.N
(2 L.A.N)/60

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