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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit of viscosity is

Meters² per sec
kg-sec/meter
Newton-sec per meter²
Newton-sec per meter

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Hydraulics and Fluid Mechanics in ME
Rotameter is a device used to measure

velocity of fluid
flow
absolute pressure
rotation

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Hydraulics and Fluid Mechanics in ME
Discharge (Q) of a centrifugal pump is given by (where D = Diameter of impeller at inlet, b = Width of impeller at inlet, and Vf = Velocity of flow at inlet)

Q = π.D.bf.V
Q = π.D.Vf
Q = π.b.Vf
Q = D.b.Vf

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Hydraulics and Fluid Mechanics in ME
The Fourneyron turbine is _________ reaction turbine.

An inward flow
An axial flow
A mixed flow
An outward flow

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

Vaned diffusion casing
Inlet guide blades
Adjustable blades
Backward curved blades

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Hydraulics and Fluid Mechanics in ME
In reaction turbine, draft tube is used

For safety of turbine
To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section
To increase flow rate
To transport water downstream without eddies

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