The efficiency of a Pelton wheel working under constant head _________ – McqOptions

MCQOPTIONS

1.	The efficiency of a Pelton wheel working under constant head __________ with the increase in power.
A.	remains same
B.	increases
C.	decreases
D.	-
Answer» C. decreases

Discussion

No Comment Found

Related MCQs

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 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.
In a reaction turbine, the pressure head of water, while flowing over the vanes, is converted into kinetic head before leaving the wheel.
The power produced by the reaction turbine is __________ to the head of water.
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
A Francis turbine is used when the available head of water is