Residential Plumbing Inspector Practice Test 2026 - Free Plumbing Inspector Practice Questions and Study Guide

The function of a toilet flange is primarily to secure the toilet to the floor. This component sits on top of the finished floor and serves as a mounting point for the toilet, ensuring it remains stable and in position during use. The flange is typically bolted down, creating a strong attachment that keeps the toilet aligned with the waste pipe beneath it.

While the other choices may relate to overall toilet function or installation aspects, they do not accurately describe the specific role of the flange. For instance, preventing sewer gases from escaping is the role of the wax seal located between the flange and the toilet base. Increasing water flow to the toilet typically involves the internal plumbing fixtures and the design of the toilet itself rather than the flange. Lastly, while a toilet may have a decorative aspect, the flange is functional rather than aesthetic, focusing solely on stability and support.