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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet)

(1 + cos φ)/2
(1 + sin φ)/2
(1 - sin φ)/2
(1 - cos φ)/2

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Hydraulics and Fluid Mechanics in ME
The body will float if the force of buoyancy is ___ the weight of the liquid displaced.

None of the listed here
Less than
More than
Equal to

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Hydraulics and Fluid Mechanics in ME
Kinematic viscosity is dependent upon

Distance
Flow
Pressure
Density

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Hydraulics and Fluid Mechanics in ME
According to Bernoulli's equation

Z + p/w + v²/2g = constant
Z - p/w + v²/2g = constant
Z + p/w - v²/2g = constant
Z - p/w - v²/2g = constant

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Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

adhesion
cohesion
viscosity
surface tension

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Hydraulics and Fluid Mechanics in ME
Axial flow pump is started with its delivery valve

Kept 50% open
Kept fully closed
Irrespective of any position
Kept fully open

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