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

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Hydraulics and Fluid Mechanics in ME
Runaway speed of a hydraulic turbine is

Full load speed
The speed at which turbine runner will be damaged
The speed corresponding to maximum overload permissible
The speed if the turbine runner is allowed to revolve freely without load and with the wicket gates wide open

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