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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following pump is preferred for flood control and irrigation applications?

Axial flow pump
Centrifugal pump
Reciprocating pump
Mixed flow pump

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Hydraulics and Fluid Mechanics in ME
Gradually varied flow is

non-steady uniform
non-steady non-uniform
steady uniform
steady non-uniform

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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)

0.75v²/2g
0.375v²/2g
0.5v²/2g
v²/2g

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Hydraulics and Fluid Mechanics in ME
The highest efficiency is obtained with a channel of __________ section.

Rectangular
Square
Circular
Trapezoidal

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

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

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called

upthrust
reaction
buoyancy
metacentre

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