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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit power developed by a turbine is (where P = Power developed by the turbine under a head of water (H).

P/ H
P/ H3/2
P/ √H
P/ H²

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Hydraulics and Fluid Mechanics in ME
Rain drops are spherical because of

atmospheric pressure
viscosity
air resistance
surface tension forces

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Hydraulics and Fluid Mechanics in ME
The property by virtue of which a liquid opposes relative motion between its different layers is called

Osmosis
Coefficient of viscosity
Viscosity
Surface tension

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Hydraulics and Fluid Mechanics in ME
Surge wave in a rectangular channel is an example ofi) steady flowii) unsteady flowiii) uniform flowiv) non-uniform flowThe correct answer is

(i) and (iii)
(i) and (iv)
(ii) and (iii)
(ii) and (iv)

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Hydraulics and Fluid Mechanics in ME
A fluid of kinematic viscosity 0.4 cm²/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be

1 m/sec
2 m/sec
less than 1 m/sec
1.5 m/sec

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Hydraulics and Fluid Mechanics in ME
The fluid forces considered in the Navier Stokes equation are

gravity, pressure and viscous
pressure, viscous and turbulent
gravity, pressure and turbulent
gravity, viscous and turbulent

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