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5. A diesel-driven centrifugal fire pump is rated at 1200 gpm at 100 psi with a churn pressure of 145 psig. Static city pressure varies

5. A diesel-driven centrifugal fire pump is rated at 1200 gpm at 100 psi with a churn pressure of 145 psig. Static city pressure varies between 60 and 70 psig. Determine if a relief valve is required, and the pressure settings for the following: a. Jockey pump stop b. Jockey pump start c. Fire pump stop d. Fire pump start e. Fire pump maximum churn

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