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 (1 - cos φ)/2 (1 - sin φ)/2 (1 + sin φ)/2 (1 + cos φ)/2 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The cavitation in reaction turbines is avoided, to a great extent by Using stainless steel runner of the turbine Providing highly polished blades to the runner Installing the turbine below the tail race level All of these Using stainless steel runner of the turbine Providing highly polished blades to the runner Installing the turbine below the tail race level All of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The intensity of pressure on an immersed surface __________ with the increase in depth. Does not change None of these Increases Decreases Does not change None of these Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME A structure used to dam up a stream or river over which the water flows is called Weir Dam Orifice Notch Weir Dam Orifice Notch ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than frictional force surface friction viscosity All of these frictional force surface friction viscosity All of these ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface) (IG/x̅) - Ax̅ (Ax̅/IG) + x̅ (IG/Ax̅) + x̅ (IG/Ax̅) - x̅ (IG/x̅) - Ax̅ (Ax̅/IG) + x̅ (IG/Ax̅) + x̅ (IG/Ax̅) - x̅ ANSWER DOWNLOAD EXAMIANS APP
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