Humber/Ontario Real Estate Course 2 Exam Practice

Which of the following statements is correct regarding the plumbing system in a residential home?

1. Copper pipes are no longer used for water distribution in homes

2. Plastic piping is rarely used for waste water drains

3. Venting in a plumbing drainage system helps exhaust sewer gases through a vent stack

4. Venting in a plumbing system is outdated and no longer required

5. PVC pipes are worse off compared to CPVC pipes

The correct answer is: Venting in a plumbing drainage system helps exhaust sewer gases through a vent stack

Venting in a plumbing drainage system plays a crucial role in maintaining the proper operation of the system. The correct statement from the options provided is that "Venting in a plumbing drainage system helps exhaust sewer gases through a vent stack." Proper venting ensures that sewer gases are vented out through the vent stack, preventing any blockages or build-up of dangerous gases in the plumbing system. It also helps regulate air pressure within the system, allowing for smooth drainage and preventing issues like gurgling or slow draining. Therefore, option C is the correct statement regarding the plumbing system in a residential home. The other options are incorrect: A. Copper pipes are still commonly used for water distribution in homes due to their durability and resistance to corrosion. B. Plastic piping, specifically PVC, is commonly used for waste water drains due to its affordability, ease of installation, and resistance to chemicals and corrosion. D. Venting in a plumbing system is not outdated and continues to be a necessary component to ensure the proper functioning of the drainage system. E. PVC pipes are a popular choice for plumbing due to their affordability, durability, and resistance to corrosion, just like CPVC pipes.