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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)

w × Q (H - hf)
w × Q (H + hf)
w × Q × hf
w × Q × H

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Hydraulics and Fluid Mechanics in ME
Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between

Lift and drag
Lift and resultant force
Lift and tangential force
Drag and resultant force

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Hydraulics and Fluid Mechanics in ME
Property of a fluid by which its own molecules are attracted is called

viscosity
compressibility
adhesion
cohesion

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Hydraulics and Fluid Mechanics in ME
Bulk modulus of a fluid __________ as the pressure increases.

Increases
Decreases
None of these
Remain same

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Hydraulics and Fluid Mechanics in ME
In a centrifugal pump casing, the flow of water leaving the

Vortex
Radial
Axial
Centrifugal

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Hydraulics and Fluid Mechanics in ME
The loss of head at exit of a pipe is (where v = Velocity of liquid in the pipe)

v²/2g
0.75v²/2g
0.375v²/2g
0.5v²/2g

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