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Plumbing Practice Exam 8

Plumbing practice exam 8, intermediate tier: pressure zoning, trap arms, slope, fittings, and code scenarios. Scored with per-question explanations.

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These questions are for study practice only and are not official exam questions.

Question 1

1

A water service must deliver 30 gpm with 12 psi of friction loss available over 150 feet developed length. Why might 3/4 inch copper be inadequate?

Question 2

2

Two identical homes differ only in that one has a flushometer toilet and one has a flush-tank toilet. How does this affect supply sizing?

Question 3

3

In a high-rise, why is the water distribution often divided into pressure zones with separate PRVs or pumps per zone?

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