Hydraulics and Fluid Mechanics in ME
Which of the following is an incorrect statement ?

Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined
None of these
Coefficient of contraction of a venturimeter is unity
Flow nozzle is cheaper than venturimeter but has higher energy loss

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Hydraulics and Fluid Mechanics in ME
A floating body is said to be in a state of stable equilibrium

when its metacentric height is zero
when the metacentre is above the centre of gravity
when the metacentre is below the centre of gravity
only when its centre of gravity is below its centre of buoyancy

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

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

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