Massachusetts Plumbers Journeyman Practice Exam

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

1. Air

2. Liquid Waste

3. Developed Length

4. Trap Seal

The correct answer is: Liquid Waste

The correct answer is liquid waste. Liquid waste refers to any discharge coming from fixtures, appliances, or areas that does not include human or animal waste. This encompasses a wide range of non-hazardous discharges such as water from sinks, showers, or appliances that handle wash water, making it a significant category in plumbing definitions and practices. Other options do not fit this definition. Air represents a gas, while developed length pertains to the physical layout of piping in a system. Trap seal refers to the body of water maintained in a trap to prevent sewer gases from entering the building, which is unrelated to the discharge characteristics defined in the question. Thus, focusing on the nature of liquid waste provides a clear understanding of what qualifies as discharge without harmful waste.