Hydraulics and Fluid Mechanics in ME The overall efficiency for a Pelton wheel lies between 0.50 to 0.65 0.85 to 0.90 0.65 to 0.75 0.75 to 0.85 0.50 to 0.65 0.85 to 0.90 0.65 to 0.75 0.75 to 0.85 ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME Mercury does not wet glass. This is due to property of liquid known as cohesion viscosity surface tension adhesion cohesion viscosity surface tension adhesion ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is (Assume that boundary layer is entirely laminar) 0.40 cm 0.10 cm 0.20 cm 0.05 cm 0.40 cm 0.10 cm 0.20 cm 0.05 cm ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The hydraulic gradient line lies over the centre line of the pipe by an amount equal to the Pressure head + velocity head Pressure head - velocity head Velocity head Pressure head Pressure head + velocity head Pressure head - velocity head Velocity head Pressure head ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The loss of head at exit of a pipe is (where v = Velocity of liquid in the pipe) 0.375v²/2g v²/2g 0.5v²/2g 0.75v²/2g 0.375v²/2g v²/2g 0.5v²/2g 0.75v²/2g ANSWER DOWNLOAD EXAMIANS APP
Hydraulics and Fluid Mechanics in ME The jet ratio is defined as the ratio of the Diameter of jet to the diameter of Pelton wheel Diameter of Pelton wheel to the diameter of jet Velocity of Pelton wheel to the velocity of jet Velocity of jet to the velocity of Pelton wheel Diameter of jet to the diameter of Pelton wheel Diameter of Pelton wheel to the diameter of jet Velocity of Pelton wheel to the velocity of jet Velocity of jet to the velocity of Pelton wheel ANSWER DOWNLOAD EXAMIANS APP
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