ICC Commercial Mechanical Practice Exam

What airflow rate is required for a courtroom with a maximum occupancy of 140 people?

1. 700 cfm

2. 600 cfm

3. 500 cfm

4. 100 cfm

The correct answer is: 700 cfm

The required airflow rate for a space like a courtroom is often determined by considering the maximum occupancy and specific ventilation standards. In this case, for a maximum occupancy of 140 people, the recommended airflow rate can be calculated using the general guideline of providing around 5 cfm per person for spaces with normal occupancy standards, particularly in settings where air quality and comfort are essential. When you multiply the maximum occupancy (140) by the airflow rate per person (5 cfm), you arrive at a total airflow requirement of 700 cfm. This calculation ensures an adequate supply of fresh air to the space, which is critical during legal proceedings where clear communication and a comfortable environment are crucial. Thus, an airflow rate of 700 cfm effectively meets the ventilation needs of a courtroom housing 140 individuals, making this the correct answer.