问题
-
The advantage of a centrifugal pump as compared with a reciprocating pump is that _____.
-
Which of the substances listed is satisfactorily removed from the fuel by a centrifugal oil purifier?
-
Increasing the speed of a centrifugal pump will result in an increase in its capacityAnoth
-
The purpose of the wearing rings used in a centrifugal pump is to _____.A.prevent an inter
-
What is a function of the wearing rings used in most centrifugal pumps?A.Absorb erosion of
-
The discharge head of a centrifugal pump will vary directly with the _____.A.change in imp