Question: The Worthington Corp. Model A-12251 water pump, operating at maximum efficiency, produces 53 ft of head at 3500 rpm, 1.1 bhp at 3200 rpm, and

The Worthington Corp. Model A-12251 water pump, operating at maximum efficiency, produces 53 ft of head at 3500 rpm, 1.1 bhp at 3200 rpm, and 60 gal/min at 2940 rpm what type of pump is this? What is its efficiency, and how does this compare with Fig. 11.14? Estimate the impeller diameter.

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