DWV stands for which of the following?

DWV stands for which of the following?

• A. Drain Water Valve
• B. Drain Waste Vent
• C. Direct Water Vent
• D. Drainage Waste Vessel

Answer: (B)

DWV refers to Drain-Waste-Vent, the plumbing system that carries wastewater away from fixtures through drain and waste pipes and provides venting to equalize pressure and prevent trap siphonage. This term is standardized in plumbing codes and drawings, so it’s the correct description of what the abbreviation stands for. The other options don’t match the conventional terminology: they either imply a single valve or use terms not used in standard plumbing practice, whereas DWV is the established name for the interconnected drain, waste, and vent piping network.

DWV refers to Drain-Waste-Vent, the plumbing system that carries wastewater away from fixtures through drain and waste pipes and provides venting to equalize pressure and prevent trap siphonage. This term is standardized in plumbing codes and drawings, so it’s the correct description of what the abbreviation stands for. The other options don’t match the conventional terminology: they either imply a single valve or use terms not used in standard plumbing practice, whereas DWV is the established name for the interconnected drain, waste, and vent piping network.