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

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

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Hydraulics and Fluid Mechanics in ME
The specific speed of turbine is defined as the speed of a unit

Of such a size that it requires unit power per unit head
Of such a size that it delivers unit discharge at unit power
Of such a size that it delivers unit discharge at unit head
Of such a size that it produces unit horse power with unit head

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