HVAC Journeyman 2025 – 400 Free Practice Questions to Pass the Exam

The requirement that venting systems installed greater than 45 degrees must have a specific slope is crucial for ensuring proper drainage and preventing the accumulation of condensate within the venting system. When venting systems are installed at inclines, it's important that they maintain a slope that allows for effective drainage of moisture, which can cause blockages or other issues.

In contrast, the other options reflect valid requirements for venting systems. Considering venting systems installed at greater than 45 degrees as horizontal by code is significant because it impacts how the installation is evaluated against building codes and standards. Accessibility for maintenance is vital to ensure that any blockages or issues can be promptly resolved. Lastly, the use of durable materials in venting systems is essential for longevity and safety, as these materials must withstand corrosive elements and temperature fluctuations. These factors contribute to the overall effectiveness and reliability of the venting system.