Written by • April 15, 2026• 3:14 pm•

UPC Code Quiz | Second Quarter 2026

The maximum vertical distance for a tailpiece allowed between a fixture outlet and the trap weir is ______________.

Each plumbing fixture trap shall be protected against siphonage and backpressure by a ______.

A trap arm smaller than 3 inches may change direction without a cleanout if the change in direction does not exceed ______.

The vent pipe opening from a soil or waste pipe, except for water closets and similar fixtures, ______.

Last modified: April 15, 2026

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