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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a

Notch
Mouthpiece
Weir
Nozzle

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

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

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Hydraulics and Fluid Mechanics in ME
Geometric similarity is said to exist between the model and the prototype, if both of them

Have identical velocities
Are equal in size and shape
Are identical in shape, but differ only in size
Have identical forces

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Hydraulics and Fluid Mechanics in ME
The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as

Path line
Potential line
Stream line
Steak line

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Hydraulics and Fluid Mechanics in ME
The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as

center of pressure
center of gravity
metacentre
center of buoyancy

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Hydraulics and Fluid Mechanics in ME
A turbine is required to develop 1500 kW at 300 r.p.m. under a head of 150 m. Which of the following turbine should be used?

Francis turbine
Kaplan turbine
Pelton wheel with two or more nozzles
Pelton wheel with one nozzle

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