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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
The loss of head at entrance in a pipe is (where v = Velocity of liquid in the pipe)

0.375v²/2g
0.75v²/2g
v²/2g
0.5v²/2g

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Hydraulics and Fluid Mechanics in ME
Braking jet in an impulse turbine is used

To bring the runner to rest in a short time
To break the jet of water
None of these
To change the direction of runner

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Hydraulics and Fluid Mechanics in ME
Property of a fluid by which its own molecules are attracted is called

compressibility
viscosity
adhesion
cohesion

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Hydraulics and Fluid Mechanics in ME
An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.

More than twice
Less than twice
More than three times
Less than three times

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Hydraulics and Fluid Mechanics in ME
The undershot water wheels are those in which

The wheel runs entirely by the impulse of water
The wheel runs entirely by the weight of water
The wheel runs partly by the weight of water and partly by the impulse of water
None of these

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