Which statement is true about a circular take-off in ductwork?

Which statement is true about a circular take-off in ductwork?

• A. It attaches to the duct to deliver air to a location
• B. It seals joints
• C. It dampens sound
• D. It measures airflow

Answer: (A)

A circular take-off is a branch connection in ductwork that taps air from the main run into a branch duct. Its purpose is to attach to the duct and deliver air to a location such as a diffuser or register. It isn’t primarily used to seal joints, dampen sound, or measure airflow—those roles are filled by sealing methods, acoustical treatments, and flow-measuring devices, respectively. So the idea that it attaches to the duct to deliver air to a location captures its main function.

A circular take-off is a branch connection in ductwork that taps air from the main run into a branch duct. Its purpose is to attach to the duct and deliver air to a location such as a diffuser or register. It isn’t primarily used to seal joints, dampen sound, or measure airflow—those roles are filled by sealing methods, acoustical treatments, and flow-measuring devices, respectively. So the idea that it attaches to the duct to deliver air to a location captures its main function.