Refer to the drawing of a cooling water system and the associated pump/system operating curves (see figure below).

Pumps A and B are identical single-speed centrifugal pumps and initially only pump A is operating.

Pump B is then started.

After the system stabilizes, system flow rate will be…

A. the same as the initial flow rate.

B. less than twice the initial flow rate.

C. twice the initial flow rate.

D. more than twice the initial flow rate.

## Show Answer

Answer: B

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