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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine ___ with the increase in unit speed.

Remain same
Increases
Decreases
None of the listed here

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Hydraulics and Fluid Mechanics in ME
The property by virtue of which a liquid opposes relative motion between its different layers is called

Osmosis
Coefficient of viscosity
Surface tension
Viscosity

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Hydraulics and Fluid Mechanics in ME
If the ratio's of the corresponding forces acting at corresponding points are equal, then the model and the prototype are said to have.

Kinematic similarity
Geometric similarity
Dynamic similarity
None of these

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Hydraulics and Fluid Mechanics in ME
The maximum number of jets generally employed in impulse turbine without jet interference is

4
6
12
8

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

work
length
mass
energy

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Hydraulics and Fluid Mechanics in ME
If the net positive suction head (NPSH) requirement for the pump is not satisfied, then

Cavitation will be formed
Efficiency will be low
Excessive power will be consumed
No flow will take place

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