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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

h
h/w
wh
w/h

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Hydraulics and Fluid Mechanics in ME
The specific speed of a hydraulic turbine depends upon

Speed and power developed
Speed, power developed and head of water
Discharge and power developed
Speed and head of water

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Hydraulics and Fluid Mechanics in ME
The jet ratio is defined as the ratio of the

Diameter of jet to the diameter of Pelton wheel
Velocity of Pelton wheel to the velocity of jet
Velocity of jet to the velocity of Pelton wheel
Diameter of Pelton wheel to the diameter of jet

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Hydraulics and Fluid Mechanics in ME
The variation in the volume of a liquid with the variation of pressure is called its

Surface tension
Capillarity
Viscosity
Compressibility

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Hydraulics and Fluid Mechanics in ME
Delivery head of a centrifugal pump is

Directly proportional to N²
Directly proportional to N
Inversely proportional to N²
Inversely proportional to N

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Hydraulics and Fluid Mechanics in ME
If velocity is zero over l/3rd of a cross-section and is uniform over remaining 2/3rd of the cross-section, then the correction factor for kinetic energy is

44078
43892
43924
27/8

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