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A water main with diameter 8 in and length of 880 ft is laid 40 ft uphill to residential apartments. When the discharge is 750 gpm as required for fire protection, the minimum pressure at the end fire hydrant must be 20 psi. Consider the hydrant to be an open gate valve. Calculate the pressure at the inlet of the main required to satisfy these conditions.

A water main with diameter 8 in and length of 880 ft is laid 40 ft uphill to residential apartments. When the discharge is 750 gpm as required for fire protection, the minimum pressure at the end fire hydrant must be 20 psi. Consider the hydrant to be an open gate valve. Calculate the pressure at the inlet of the main required to satisfy these conditions.

Elements Of Electromagnetics
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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A water main with diameter 8 in and length of 880 ft is laid 40 ft uphill to residential apartments. When the discharge is 750 gpm as required for fire protection, the minimum pressure at the end fire hydrant must be 20 psi. Consider the hydrant to be an open gate valve. Calculate the pressure at the inlet of the main required to satisfy these conditions.
Transcribed Image Text:A water main with diameter 8 in and length of 880 ft is laid 40 ft uphill to residential apartments. When the discharge is 750 gpm as required for fire protection, the minimum pressure at the end fire hydrant must be 20 psi. Consider the hydrant to be an open gate valve. Calculate the pressure at the inlet of the main required to satisfy these conditions.
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