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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The gross or total head of the turbine is the ___________ of the water levels at the head race and tail race.

Difference
None of these
Product
Sum

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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

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

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Hydraulics and Fluid Mechanics in ME
Fluid is a substance which offers no resistance to change of

Pressure
Flow
Shape
Volume

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Hydraulics and Fluid Mechanics in ME
Ratio of inertia force to elastic force is known as

Froude number
Mach number
Weber’s number
Reynold’s number

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Hydraulics and Fluid Mechanics in ME
If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be

The same as the surface of liquid
Lower than the surface of liquid
Unpredictable
Higher than the surface of liquid

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Hydraulics and Fluid Mechanics in ME
The bulk modulus of elasticity

has the dimensions of 1/pressure
increases with pressure
is large when fluid is more compressible
is independent of pressure and viscosity

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