Which of the following is a recognized driver of air movement in a building?

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Multiple Choice

Which of the following is a recognized driver of air movement in a building?

Air movement in a building is driven by forces that create pressure differences and buoyancy, including the heat and movement generated by people. Occupants contribute directly by warming the surrounding air, which causes it to rise and circulate, and by their movement and door/window use, which create localized air currents and pressure changes. That makes people a recognized driver of air movement. The other options don’t directly move air: carpet color affects heat absorption on surfaces but doesn’t set airflow by itself; glass tint changes solar heat gain and the resulting temperatures, yet not airflow directly; sound level may indicate activity but it doesn’t create air currents.

Air movement in a building is driven by forces that create pressure differences and buoyancy, including the heat and movement generated by people. Occupants contribute directly by warming the surrounding air, which causes it to rise and circulate, and by their movement and door/window use, which create localized air currents and pressure changes. That makes people a recognized driver of air movement. The other options don’t directly move air: carpet color affects heat absorption on surfaces but doesn’t set airflow by itself; glass tint changes solar heat gain and the resulting temperatures, yet not airflow directly; sound level may indicate activity but it doesn’t create air currents.

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