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Hydraulics and Fluid Mechanics in ME

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

43924
27/8
44078
43892

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Hydraulics and Fluid Mechanics in ME
The cavitation in a hydraulic machine

Reduces the discharge of a turbine
Causes sudden drop in power output and efficiency
All of these
Causes noise and vibration of various parts

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Hydraulics and Fluid Mechanics in ME
In an isothermal atmosphere, the pressure

varies in the same way as the density
decreases linearly with elevation
increases exponentially with elevation
remains constant

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Hydraulics and Fluid Mechanics in ME
A fluid in equilibrium can't sustain

Shear stress
Bending stress
Compressive stress
Tensile stress

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Hydraulics and Fluid Mechanics in ME
The coefficient of viscosity may be determined by

Rotating cylinder method
Capillary tube method
Orifice type viscometer
All of these

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Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

surface tension
cohesion
viscosity
adhesion

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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