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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit power developed by a turbine is (where P = Power developed by the turbine under a head of water (H).

P/ H
P/ H3/2
P/ √H
P/ H²

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

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Hydraulics and Fluid Mechanics in ME
Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be

2000 kg
8000 kg
1000 kg
4000 kg

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Hydraulics and Fluid Mechanics in ME
Power required to drive a centrifugal pump is directly proportional to _________ of its impeller.

Square of diameter
Diameter
Cube of diameter
Fourth power of diameter

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Hydraulics and Fluid Mechanics in ME
The total pressure on an immersed surface inclined at an angle θ with the liquid surface is

wA
wAx
wAx/sinθ
wx

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Hydraulics and Fluid Mechanics in ME
Two pipe systems can be said to be equivalent, when the following quantites are same

flow and length
friction loss and flow
friction factor and diameter
length and diameter

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