Humber/Ontario Real Estate Course 4 Exam Practice

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Prepare for the Humber/Ontario Real Estate Course 4 Exam with our comprehensive practice tests. Study with flashcards and multiple-choice questions, complete with hints and detailed explanations. Achieve success on your real estate licensing journey!

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Which statement is correct about residential plumbing systems?

Copper is now rare for water distribution in homes.
PVC pipes are generally more advantageous than CPVC pipes.
Plastic piping is no longer used for wastewater plumbing.
Stainless steel piping is the new standard for residential plumbing.
Venting in a plumbing system helps to expel sewer gases through a vent stack.
Water softeners are now mandatory in plumbing systems.

The correct answer is: Venting in a plumbing system helps to expel sewer gases through a vent stack.

Venting in a plumbing system is an essential component that allows for the proper functioning of drainage and waste systems. It facilitates the expulsion of sewer gases through a vent stack, which is crucial for maintaining air pressure in the plumbing system. This venting process prevents negative pressure from building up in waste pipes, which could lead to slow drainage or the siphoning of water from traps, potentially allowing sewer gases to escape into the living space. Proper ventilation helps ensure that fixtures operate effectively and that harmful gases do not enter the home, thereby promoting a safe and healthy environment. Understanding the function of venting is critical for anyone involved in real estate, construction, or home inspections, as it underscores the importance of maintaining adequate plumbing systems for both functionality and safety.