The efficiency at the best operating point is:
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:The efficiency at the best operating point is:
Head (ft)
O-4%
O 23%
O 28%
5%
85.00
80.00
75.00
70.00
65.00
60.00
55.00
50.00
45.00
40.00
35.00
30.00
25.00
20.00
15.00
10.00
Pump Curve
System Curve
Effe.
Poly. (Pump Curve
Poly. (System Curve)
Operating Point Chart
20
30
40
Q (gpm)
50
60
70
35%
30%
25%
20%
15%
10%
5%
0%
-5%
-10%
-15%
-20%
-25%
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