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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

water surface
center of gravity
center of pressure
center of buoyancy

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends upon the

Pressure with which the liquid is displaced
Compressibility of the liquid
Weight of the liquid displaced
Viscosity of the liquid

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Hydraulics and Fluid Mechanics in ME
If the depth of water in an open channel is less than the critical depth, the flow is called

Turbulent flow
Torrential flow
Tranquil flow
Critical flow

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Hydraulics and Fluid Mechanics in ME
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. The saving in case of a double acting reciprocating pump is

0.488
0.848
0.392
0.884

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Hydraulics and Fluid Mechanics in ME
Which place in hydraulic turbine is most susceptible for cavitations?

Guide blade
Blade inlet
Inlet of draft rube
Penstock

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Hydraulics and Fluid Mechanics in ME
The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and ρ = Density of the fluid)

K.ρ
None of the listed here
ρ/K
K/ρ

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