=+10-14.

A system requires a flow rate of 225 gpm (14.2 L/s) and a head of 149 ft (45 m).

(a) Select a pump from Fig. 10-11 that most closely matches the required flow rate and head, and list its shaft power and efficiency,

(b) Suppose a 7 in. 3500 rpm pump was selected for the system and adjusted to a flow rate of 225 gpm (14.2 L/s). What are the efficiency and power?

(c) Show the pump and system characteristics of

(a) and

(b) on the same graph.