What is the maximum capacity in cubic feet per minute for each exhaust fan in a mechanical smoke removal system?

• A. 30,000
• B. 35,000
• C. 40,000
• D. 45,000

Answer: (A)

The maximum capacity in cubic feet per minute for each exhaust fan in a mechanical smoke removal system is established to provide effective smoke control in buildings during emergencies such as fires. A limit of 30,000 cubic feet per minute is set to ensure that systems can handle the necessary volume of smoke without compromising safety or efficiency.

This capacity ensures that the exhaust fans can efficiently ventilate smoke-filled areas, which is crucial for maintaining a safe environment for occupants and first responders. It also allows for a balance between power requirements and the design limitations of typical building infrastructure. Exceeding this specified capacity could result in system inefficiencies or failures in smoke control, underscoring the importance of adhering to this standard in smoke management strategies within buildings.