NCCER Sheet Metal Level 3 Test 2025 – 400 Free Practice Questions to Pass the Exam

The term used to describe the point at which two duct segments meet is "joint." In sheet metal work, a joint is where two pieces of ductwork are fastened or connected together, creating a seamless transition for air to flow through. Properly crafted joints are critical for maintaining airflow efficiency, preventing air leaks, and ensuring the overall integrity of the HVAC system.

The significance of understanding what constitutes a joint is essential for technicians who must work with different types of duct materials and configurations. This terminology is particularly relevant because it addresses how sheets of metal or duct segments are joined to create a functional system that supports heating, ventilation, and air conditioning applications. Clear comprehension of joints aids in diagnosing issues, planning system designs, and executing accurate installations.

Other terms, such as intersection, connection, and convergence, may refer to different aspects of ductwork but do not specifically capture the idea of the meeting point of two duct segments as effectively as "joint."