The runaway speed of a hydraulic turbine is the speed
In a Francis turbine runner, the number of blades are generally between
A hydraulic accumulator is a device used to store __________ energy which may be supplied to a machine later on.
A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is
A hydraulic ram is a device used to
In a mixed flow centrifugal pump, the flow through the impeller is a combination of radial and axial flows.
Which of the following pump is generally used to pump highly viscous fluid?
Which of the following statement is correct ?
A Kaplan turbine is preferred for a specific speed oftor.p.m.
Which of the following pump is successfully used for lifting water to the turbines?
A reciprocating pump is suitable for less discharge and higher heads.
The cavitation in a hydraulic machine
The relation between hydraulic efficiency (ηh), mechanical efficiency (ηm) and overall efficiency (ηo) ) is
The Furneyron turbine is __________ reaction turbine.
Overall efficiency of a centrifugal pump is the ratio of
A Pelton wheel is
The overall efficiency of an impulse turbine is the ratio of the actual power produced by the turbine to the energy actually supplied by the turbine.
Form head of water, __________ shallbeused.
Which of the following is not a reaction turbine?
The flow ratio of Francis turbine is defined as the ratio of the
The type of centrifugal pump preferred for a specific speed ofr.p.m. is
The discharge through a turbine is
The action of a centrifugal pump is that of a reversed reaction turbine.
A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is __________ of the jet velocity
If the net positive suction head (NPSH) requirement for the pump is not satisfied, then
The speed of a turbine runner is
Which of the following pump is preferred for flood control and irrigation applications?
Please disable the adBlock and continue. Thank you.