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AZ ROC A-16 Waterworks Practice Questions - Arizona ROC A-16 Waterworks (Commercial) Examination Exam

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A 16-inch water main operating at 100 psi makes a 45-degree horizontal bend. If the total hydrostatic thrust force generated is calculated as 15,400 lbs and the soil bearing capacity is 2,000 pounds per square foot (psf), what is the minimum required bearing area of the concrete thrust block against undisturbed soil?
Correct Answer:
7.70 sq ft

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