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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The velocity at which the laminar flow stops, is known as

None of these
Velocity of approach
Higher critical velocity
Lower critical velocity

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Hydraulics and Fluid Mechanics in ME
The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is _______ of the jet velocity,

One-fourth
One-half
Double
Three-fourth

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Hydraulics and Fluid Mechanics in ME
Any change in load is adjusted by adjusting following parameter on turbine

Absolute velocity
Flow
Blade velocity
Net head

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Hydraulics and Fluid Mechanics in ME
The unit speed of the turbine runner is

N/H3/2
N/H
N/H²
N/√H

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Hydraulics and Fluid Mechanics in ME
For very great pressures, viscosity of moss gases and liquids

decreases
remains same
shows erratic behaviour
increases

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Hydraulics and Fluid Mechanics in ME
The specific weight of sea water is __________ that of pure water.

None of these
More than
Less than
Same as

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