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South Dakota Plumbing Practice 11

Practice 11 for Plumbing Exam learners in South Dakota: 25 questions, explained answers, and a review routine.

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Question 1

1

A building has a total demand of 38 WSFU on a system with flush tanks only. Using Hunter's curve, the estimated peak demand is closest to which gallons-per-minute value?

Question 2

2

Static pressure at a meter is 70 psi and the highest fixture is 40 feet above it. Ignoring friction, what residual pressure remains at that fixture?

Question 3

3

A reduced-pressure principle backflow assembly (RPZ) protects against which level of hazard?

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