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Hydraulics and Fluid Mechanics in ME

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

cohesion
viscosity
surface tension
adhesion

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Hydraulics and Fluid Mechanics in ME
Which of the following has highest coefficient of discharge ?

venturimeter
CipoUetti weir
Borda’s mouthpiece running full
sharp edged orifice

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Hydraulics and Fluid Mechanics in ME
The maximum number of jets, generally, employed in an impulse turbine without jet interference are

Eight
Four
Six
Two

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Hydraulics and Fluid Mechanics in ME
The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called

Density of liquid
Specific gravity of liquid
Surface tension of liquid
Compressibility of liquid

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Hydraulics and Fluid Mechanics in ME
Specific speed for reaction turbines ranges from

250 to 300
10 to 100
0 to 4.5
80 to 200

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Hydraulics and Fluid Mechanics in ME
The divergent portion of a Venturimeter is made longer than convergent portion in order to

Avoid the tendency of breaking away the stream of liquid
To minimize frictional losses
None of these
Both (A) and (B)

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