Texas Tradesman Plumber-Limited License Practice Exam

The term that accurately describes a drain serving two or more fixtures that discharges to another drain or to a stack is “fixture branch.” This term is used in plumbing to indicate the part of the drainage system that connects multiple fixture drains to a common drainage pipe or stack. A fixture branch is essential in ensuring that wastewater from multiple sources can be effectively channeled away, avoiding potential clogs and ensuring efficient drainage.

Understanding this term is critical for proper plumbing design, as it signifies the connection point where several fixtures share a drainage path, thus complying with plumbing codes and promoting efficient waste removal. Other terms like fixture supply relate to the water supply lines feeding the fixtures, and building drain refers to the main drainage pipe that carries waste from the building to the sewer system, which are distinct from the concept of a fixture branch that specifically pertains to multiple fixtures.