![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
A multistage centrifugal pump can be BEST described as having _____.
A.
two or more impellers housed together in one casing and mounted on a single shaft
B.
a single stepped impeller mounted in a progressively staged casing
C.
a large radial clearance between the impeller and casing to prevent overheating due to
D.
an increase in the discharge velocity of the liquid with a corresponding decrease in pressure through the stages