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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/ H²
P/ √H
P/ H
P/ H3/2

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Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the liquids with rise in temperature

Increases
Decreases
Unpredictable
Remain unaffected

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Hydraulics and Fluid Mechanics in ME
A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a

Mouthpiece
Weir
Nozzle
Notch

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Hydraulics and Fluid Mechanics in ME
The stress-strain relation of the Newtonian fluid is

Parabolic
Hyperbolic
Linear
Inverse type

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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

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

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Hydraulics and Fluid Mechanics in ME
The product of mass and acceleration of flowing liquid is called

Gravity force
Pressure force
Viscous force
Inertia force

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