Hydraulic Machines - Section 1 (2)

For centrifugal pump impeller, the maximum value of the vane exit angle is

The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as

In the casing of a centrifugal pump, the kinetic energy of the water is converted into pressure energy before the water leaves the casing.

The principle of jet propulsion is used in driving the ships and aeroplanes.

A hydraulic coupling belongs to the category of

The specific speed from 160 to 500 r.p.m. of a centrifugal pump indicates that the pump is

A Francis turbine is used when the available head of water is

When the speed of the pump increases, its net positive suction head (NPSH) requirement decreases.