What are the Supply ducts?

What are the Supply ducts?

• A. The ones that send conditioned air into each room
• B. The ducts that remove air from the house to the outdoors
• C. Ducts used only for return air from rooms
• D. Ducts used to supply electricity to the system

Answer: (A)

The key idea here is understanding what the ducts in an HVAC system that actually deliver air do. Supply ducts are the pathways that carry conditioned air from the furnace or air handler through the duct network to the rooms in the building. They connect to supply registers in ceilings, walls, or floors so that heated or cooled air is released into each space. When the blower runs, these ducts are under positive pressure, pushing air out into the rooms to maintain the set temperature. That’s why the statement describing supply ducts as the ones that send conditioned air into each room is the best fit. The other descriptions refer to other parts of the system: ducts that pull air back from rooms to the furnace are return ducts, and supplying electricity is not done by ductwork at all.

The key idea here is understanding what the ducts in an HVAC system that actually deliver air do. Supply ducts are the pathways that carry conditioned air from the furnace or air handler through the duct network to the rooms in the building. They connect to supply registers in ceilings, walls, or floors so that heated or cooled air is released into each space. When the blower runs, these ducts are under positive pressure, pushing air out into the rooms to maintain the set temperature.

That’s why the statement describing supply ducts as the ones that send conditioned air into each room is the best fit. The other descriptions refer to other parts of the system: ducts that pull air back from rooms to the furnace are return ducts, and supplying electricity is not done by ductwork at all.