Motion of a liquid in a volute casing of a centrifugal pump is an example of____________________?

Question: If the Francis turbine is run below 50 percent head for a long period, it will not only lose its efficiency but also the cavitation danger will become more serious.
[A].

Agree

[B].

Disagree

Answer: Option A

Explanation:

No answer description available for this question.

Question: 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
[A].

one-half

[B].

one-third

[C].

two-third

[D].

three-fourth

Answer: Option B

Explanation:

No answer description available for this question.

Question: The cavitation in a hydraulic machine is mainly due to
[A].

low velocity

[B].

high velocity

[C].

low pressure

[D].

high pressure

Answer: Option C

Explanation:

No answer description available for this question.