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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
An opening in the side of a tank or vessel such that the liquid surface with the tank is below the top edge of the opening, is called

Weir
Orifice
None of these
Notch

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Hydraulics and Fluid Mechanics in ME
Liquids transmit pressure equally in all the directions. This is according to

Pascal's law
Archimedes principle
Boyle's law
Newton's formula

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Hydraulics and Fluid Mechanics in ME
Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called

cohesion
adhesion
compressibility
viscosity

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Hydraulics and Fluid Mechanics in ME
The impeller of a centrifugal pump may have

Volute casing
Vortex casing
Any one of these
Volute casing with guide blades

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Hydraulics and Fluid Mechanics in ME
A turbine develops 10000 kW under a head of 25 meters at 135 r.p.m. Its specific speed is

241.5 r.p.m.
275.4 r.p.m
215.5 r.p.m.
175.4 r.p.m.

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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
K.ρ
ρ/K

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