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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The losses are more in

laminar flow
turbulent flow
transition flow
critical flow

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Hydraulics and Fluid Mechanics in ME
In axial flow fans and turbines, fluid enters and leaves as follows

Radially, axially
Radially, radially
Axially, radially
Axially, axially

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Hydraulics and Fluid Mechanics in ME
A flow through a long pipe at constant rate is called

Unsteady uniform flow
Steady non-uniform flow
Unsteady non-uniform flow
Steady uniform flow

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Hydraulics and Fluid Mechanics in ME
The specific speed (Ns) of a centrifugal pump is given by

(N√Q)/H
(N√Q)/H2/3
(N√Q)/H3/4
(N√Q)/H5/4

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Hydraulics and Fluid Mechanics in ME
When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.

Equal to
Less than
None of these
More than

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Hydraulics and Fluid Mechanics in ME
A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is

0.3
0.4
0.6
0.83

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