# Civil Engineering - Hydraulics - Discussion

Discussion Forum : Hydraulics - Section 2 (Q.No. 44)
44.
In a centrifugual pump casing, the flow of water leaving the impeller, is
rectilinear flow
free vortex motion
forced vertex.
Explanation:
No answer description is available. Let's discuss.
Discussion:
9 comments Page 1 of 1.

Sai said:   8 years ago
It should be forced vortex flow.

Gajan Rana said:   7 years ago
It's right. Flow inside the impeller of a centrifugal pump is forced vortex flow but the flow of water leaving the impeller is free vortex flow.

Shoaib ahmad said:   7 years ago
Yeah, free vortex motion is the Right answer.
(1)

King said:   7 years ago
What is a centrifugal pump and its manometric head? How to calculate discharge, efficiency and power required for a centrifugal pump using formula?

A centrifugal pump is a machine which converts the kinetic energy of the water into pressure energy before the water leaves its casing. The flow of water leaving the impeller is free vortex. The impeller of a centrifugal pump may have volute casing, vortex casing and volute casing with guide blades.

Pavi said:   5 years ago
@Shoib.

It is forced vortex.

Free vortex is water flow in sink.
(1)

Garry said:   5 years ago
It should be the answer D because the rotational motion of the fluid is forced vortex.

Rahul Rupen said:   4 years ago
C is the right answer. Centrifugal pump work on the principal of forced vortex motion. But when it leave it turned to free vortex flow.

Shashank said:   4 years ago
It is right free vortex.

Dilip gurjar mahwa said:   3 years ago
Correct option is a free vortex. Because Pump is a forced vortex and living water in the impeller is free vortex.