Core TradesCâu 196 / 700
What is a common MINIMUM intermittent exhaust airflow required for a residential bathroom fan?
a.20 cfm
b.50 cfm
c.100 cfm
d.150 cfm
Giải thích
A bathroom exhaust fan operated intermittently is commonly required to move at least 50 cfm to clear moisture. 20 cfm is the typical continuous rate, while 100 and 150 cfm exceed the minimum required for intermittent bathroom exhaust.
Trích dẫn luật: 2025 CA Mechanical Code, Chapter 4 (Ventilation) / ASHRAE 62.2Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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