Hydraulics and Fluid Mechanics in ME
In a free nappe,

The pressure above the nappe is atmospheric
The pressure above the nappe is negative
The pressure below the nappe is atmospheric
The pressure below the nappe is negative

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics and Fluid Mechanics in ME
The overall efficiency of a reaction turbine is the ratio of

Work-done on the wheel to the energy (or head of water) actually supplied to the turbine
Actual work available at the turbine to the energy imparted to the wheel
None of these
Power produced by the turbine to the energy actually supplied by the turbine

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure

Varies as the square of the radial distance
Increases as the square of the radial distance
Decreases as the square of the radial distance
Increases linearly as its radial distance

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP