Hydraulic Machines - Section 1

The ratio of quantity of liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as

The breast water wheels are those in which the wheel runs partly by the weight of water and partly by the impulse of water.

The maximum efficiency of jet propulsion of a ship with inlet orifices at right angles to the direction of motion of ship, is

The capacity of a hydraulic accumulator is generally specified as the maximum amount of energy stored.

In an impulse turbine, the jet of water impinges on the bucket with a low velocity and after flowing over the vanes, leaves with a high velocity.

The force exerted by a jet of water (in a direction normal to flow) impinging on a fixed plate inclined at an angle θ with the jet is

Manometric head, in case of a centrifugal pump, is equal to

In a reaction turbine, the pressure head of water, while flowing over the vanes, is converted into kinetic head before leaving the wheel.