Hydraulic Machines Questions

In the casing of a centrifugal pump, the kinetic energy of the water is converted into pressure energy before the water leaves the casing.
For centrifugal pump impeller, the maximum value of the vane exit angle is
The specific speed of a centrifugal pump, delivering 750 litres of water per second against a head of 15 metres at 725 r.p.m., is
When the speed of the pump increases, its net positive suction head (NPSH) requirement decreases.
The speed ratio of a Francis turbine is defined as the ratio of the theoretical jet velocity to the peripheral speed at inlet.
The static head of a centrifugal pump is equal to the __________ of suction head and delivery head.
Delivery head of water of a centrifugal pump is inversely proportional to diameter of its impeller.
The efficiency of a Pelton wheel working under constant head __________ with the increase in power.
The discharge of a double acting reciprocating pump is (where L = Length of stroke, A = Cross-sectional area of piston, and N = Speed of crank in r.p.m.)
The maximum number of jets, generally, employed in an impulse turbine without jet interference are
The specific speed from 160 to 500 r.p.m. of a centrifugal pump indicates that the pump is
Power required to drive a centrifugal pump is directly proportional to __________ of its impeller.
Manometric head, in case of a centrifugal pump, is equal to
Which of the following pump is preferred for flood control and irrigation applications?
In a Kaplan turbine runner, the number of blades are generally between
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 discharge of a centrifugal pump working under constant head __________ with the speed.
Which of the following turbine is preferred for 0 to 25 m head of water?
Work done by a turbine __________ upon the weight of water flowing per second.
The principle of jet propulsion is used in driving the ships and aeroplanes.

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