Practice test

Plumbing Practice Exam 11

Intermediate 25-question plumbing practice exam on WSFU demand, pressure loss, backflow assemblies, DWV sizing, and code. Instant scoring with explanations.

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

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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