Duct systems should satisfy fundamental criteria including?

• A. Air filtration and energy efficiency
• B. Dimensional stability, air containment, vibration and noise
• C. Cost-effectiveness and ease of installation
• D. Durability and insulation

Answer: (B)

The correct choice focuses on the fundamental criteria related to the performance and functionality of duct systems in HVAC applications. Dimensional stability refers to the ability of the ductwork to maintain its shape and size under varying temperature and pressure conditions, which is crucial to ensure efficient airflow. Air containment is important to prevent leaks that can lead to energy losses and reduced system performance. Additionally, considerations for vibration and noise are essential for providing a comfortable environment, as excessive vibrations can lead to mechanical wear and noise can negatively impact indoor air quality and comfort levels.

In terms of other choices, while air filtration and energy efficiency are important considerations in HVAC systems, they do not address the specific requirements for the design and installation of ductwork itself. Cost-effectiveness and ease of installation are significant factors, but they primarily pertain to project management and economic considerations rather than the operational integrity of the duct systems. Lastly, durability and insulation are relevant, but they are more specific qualities than broad criteria that govern the overall performance of duct systems in HVAC design and functionality.