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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Bernoulli equation deals with the law of conservation of

mass
energy
work
momentum

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Hydraulics and Fluid Mechanics in ME
Motion of a liquid in a volute casing of a centrifugal pump is an example of

Rotational flow
Spiral vortex flow
Forced spiral vortex flow
Radial

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Hydraulics and Fluid Mechanics in ME
The specific gravity of an oil whose specific weight is 7.85 kN/m3, is

1.2
1
0.8
1.6

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Hydraulics and Fluid Mechanics in ME
In an isothermal atmosphere, the pressure

decreases linearly with elevation
varies in the same way as the density
increases exponentially with elevation
remains constant

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Hydraulics and Fluid Mechanics in ME
A large Reynold number is indication of

Highly turbulent flow
Steady flow
Laminar flow
Smooth and streamline flow

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

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

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