Certified Facility Manager (CFM) Practice Exam

What are the components called that prevent sewer gases from entering a building?

1. Filters

2. Traps

3. Seals

4. Vent pipes

The correct answer is: Traps

The components that prevent sewer gases from entering a building are referred to as traps. Traps are designed to hold a small amount of water, creating a barrier that seals off the sewer gases from the atmosphere. This is crucial for maintaining indoor air quality and ensuring that harmful and unpleasant gases do not infiltrate living spaces. Traps are typically found in various plumbing fixtures, such as sinks, bathtubs, and toilets. Their functionality relies on the water standing in the curve of the trap, which acts as a physical barrier. This allows wastewater to flow out, while preventing gases that can lead to foul odors or health risks from seeping into the home. Understanding the role of traps is essential for facility managers, as they must ensure that plumbing systems are properly maintained to avoid issues related to sewer gas intrusion.