A pump delivers 500gpm of water against a total head of 200 ft and operating at 2000rpm. Changes have increased the total head to 400 ft. at what rpm should the pump be operated to achieve the new head at the same efficiency?

A pump delivers 500gpm of water against a total head of 200 ft and operating at 2000rpm. Changes have increased the total head to 400 ft. at what rpm should the pump be operated to achieve the new head at the same efficiency?

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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Question

A pump delivers 500gpm of water against a total head of
200 ft and operating at 2000rpm. Changes have increased
the total head to 400 ft. at what rpm should the pump be
operated to achieve the new head at the same efficiency?
Select the correct response:
4000 rpm
3434.23 rpm
707.12 rpm
2424.32 rpm
2828.43 rpm.
8000 rpm

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