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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The eddy viscosity for turbulent flow is

dependent on the flow
a physical property of the fluid.
a function of temperature only
independent of the flow

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Hydraulics and Fluid Mechanics in ME
A streamline is defined as the line

parallel to outer surface of pipe
of equal yelocity in a flow
along which the pressure drop is uniform
parallel to central axis flow

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Hydraulics and Fluid Mechanics in ME
An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be

12 kN/m2
4 kN/m2
14 kN/m2
10 kN/m2

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Hydraulics and Fluid Mechanics in ME
Bernoulli's equation is applied to

Venturimeter
All of the listed here
Orifice meter
Pitot tube

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Hydraulics and Fluid Mechanics in ME
Multistage centrifugal pumps are used to obtain

High discharge
High head and high discharge
Pumping of viscous fluids
High head

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies

Cube of fan speed
Square of fan speed
Square root of fan speed
Directly as fan speed

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