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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The specific weight of sea water is __________ that of pure water.

More than
Less than
None of these
Same as

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Hydraulics and Fluid Mechanics in ME
In order to measure the flow with a Venturimeter, it is installed in

Any direction and in any location
Inclined line with flow upwards
Inclined line with flow downwards
Horizontal line

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Hydraulics and Fluid Mechanics in ME
A flow is called hyper-sonic, if the Mach number is

Less than unity
Between 1 and 6
None of these
Unity

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Hydraulics and Fluid Mechanics in ME
The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is

ρ ω2 r2/2
ρ ω2 r2
2ρ ω2 r2
ρ ω2 r2/4

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Hydraulics and Fluid Mechanics in ME
The property of fluid by virtue of which it offers resistance to shear is called

cohesion
viscosity
surface tension
adhesion

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Hydraulics and Fluid Mechanics in ME
Which place in hydraulic turbine is most susceptible for cavitations?

Inlet of draft rube
Blade inlet
Guide blade
Penstock

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