Explain the properties for a centrifugal pump, such as (i) main characteristics curves, (ii) operating characteristics curves and (iii) Muschel curves. What is cavitation its causes? How it can be...

Explain the properties for a centrifugal pump, such as (i) main characteristics curves, (ii) operating characteristics curves and (iii) Muschel curves.

What is cavitation its causes? How it can be prevented in centrifugal pumps? What is priming? Why is it necessary? Also briefly discuss the priming devices.