Oklahoma Service Technician Practice Exam

The primary purpose of ductwork in HVAC systems is to distribute conditioned air throughout a building. Ductwork serves as the network of pathways that transport warm or cool air from the heating or cooling units to various spaces within the structure, ensuring that every room reaches the desired temperature. Proper ductwork design and installation are critical as they affect the efficiency and effectiveness of the HVAC system, impacting energy consumption and comfort levels in occupied spaces.

Other functions mentioned, such as filtering air pollutants, cooling outside air, and insulating pipes, are not the main roles of ductwork in HVAC systems. While some HVAC systems might use filters within the ductwork to improve air quality, filtering is not its primary design purpose. Cooling outside air is a function of the air conditioning unit itself, while insulation primarily pertains to piping and not ductwork that distributes air.