Massachusetts Plumbers Journeyman Practice Exam

What is discharge from any fixture, appliance, area or appurtenance that does not contain human or animal waste matter suspended in a solution?

1. Liquid Waste

2. Air

3. Fixture Unit

4. Soil Pipe

The correct answer is: Liquid Waste

The correct answer is liquid waste, as this term specifically refers to discharges from fixtures, appliances, areas, or appurtenances that do not contain human or animal waste. Liquid waste typically encompasses items such as water, kitchen sink effluents, and other non-hazardous liquids that are discarded from household or commercial facilities. It is important in plumbing systems as it helps categorize and manage different types of drainage and waste management scenarios, particularly in accordance with plumbing codes and water treatment practices. In contrast, air does not pertain to waste discharge; it is a gaseous substance that does not originate from fixtures or waste systems. A fixture unit is a measurement used in plumbing to represent the probable demand on a plumbing system, rather than a type of discharge. Similarly, a soil pipe specifically refers to a pipe that carries sewage or waste, which would typically include human or animal waste, thus distinguishing it from the definition of liquid waste.