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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Delivery head of a centrifugal pump is

Inversely proportional to N²
Inversely proportional to N
Directly proportional to N²
Directly proportional to N

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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

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

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Hydraulics and Fluid Mechanics in ME
Which type of the pump is different from others in the same group?

Cam and piston pump
Screw pump
Plunger pump
Gear pump

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Hydraulics and Fluid Mechanics in ME
The normal stress in a fluid will be constant in all directions at a point only if

It is at rest
It is incompressible
It has zero viscosity
It has uniform viscosity

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Hydraulics and Fluid Mechanics in ME
All the terms of energy in Bernoulli’s equation have dimension of

energy
length
mass
work

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Hydraulics and Fluid Mechanics in ME
The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

Divide
None of these
Plus
Minus

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