What term describes an air compartment or chamber connected to one or more ducts that forms part of an air distribution system?

What term describes an air compartment or chamber connected to one or more ducts that forms part of an air distribution system?

• A. Plenum
• B. Duct
• C. Chamber
• D. Vent

Answer: (A)

An air distribution plenum is the large air compartment that sits upstream of or behind a network of ducts. It serves as a reservoir or mixing chamber for conditioned air, connected to one or more ducts, and provides a space where air can spread out and pressure can stabilize before entering the ducts. This is what makes it part of the air distribution system. Ducts themselves are the conduits that carry air, not the holding space. Vents are openings that let air pass into or out of spaces. A chamber is a general term, but it doesn’t specify the HVAC role of a dedicated air-holding and distributing space that is integrated with the duct network.

An air distribution plenum is the large air compartment that sits upstream of or behind a network of ducts. It serves as a reservoir or mixing chamber for conditioned air, connected to one or more ducts, and provides a space where air can spread out and pressure can stabilize before entering the ducts. This is what makes it part of the air distribution system.

Ducts themselves are the conduits that carry air, not the holding space. Vents are openings that let air pass into or out of spaces. A chamber is a general term, but it doesn’t specify the HVAC role of a dedicated air-holding and distributing space that is integrated with the duct network.