International Residential Code (IRC) Plumbing Practice Test

The correct distance that vent terminals extending through the wall must be from the lot line is 10 feet. This requirement is established to ensure that vent gases do not pose a risk to adjacent properties or public areas. By maintaining this distance, it helps to prevent the likelihood of odors and harmful gases from the sewer system re-entering any buildings or affecting individuals near the property line.

This regulation is important for maintaining public health and safety, as well as minimizing the impact of residential plumbing systems on neighboring areas. Additionally, this distance aids in proper venting and helps ensure that the plumbing system operates effectively without causing issues related to air pressure or venting issues that could lead to backflows.

Other choices indicate varying distances that do not meet the established code requirements for effective venting and safety, highlighting the importance of adhering to this specific distance in plumbing design and installation according to the International Residential Code.