Hydraulics and Fluid Mechanics in ME
The hydraulic efficiency of an impulse turbine is the

Ratio of the actual work available at the turbine to the energy imparted to the wheel
None of these
Ratio of the actual power produced by the turbine to the energy actually supplied by the turbine
Ratio of the work done on the wheel to the energy of the jet

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics and Fluid Mechanics in ME
Surface tension

Decreases with fall in temperature
Is a function of the curvature of the interface
Is also known as capillarity
Acts in the plane of the interface normal to any line in the surface

ANSWER DOWNLOAD EXAMIANS APP