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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance)

Cc × Cr
Cc/Cr
Cc × Cv
Cv × Cr

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Hydraulics and Fluid Mechanics in ME
A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm² and a volume of 0.039 m3 at 150 kg/cm². The bulk modulus of elasticity of liquid is

4000 kg/cm²
400 kg/cm²
40 × 10⁶ kg/cm²
40 × 10⁵ kg/cm²

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

pressure of the liquid displaced
viscosity of the liquid
mass of liquid displaced
depth of immersion

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shape of

None of these
A triangle
An ellipse
A paraboloid

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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

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

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Hydraulics and Fluid Mechanics in ME
The ratio of actual work available at the turbine to the energy imparted to the wheel is known as ________ efficiency.

Mechanical
Overall
None of these
Hydraulic

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