A classroom design uses 10 cfm per occupant plus an unchanged area component. Occupancy increases from 20 to 28. What is the increase in the people component?
- A8 cfm
- 80 cfm
- C200 cfm
- D280 cfm
Where to look it up
Explicit exercise assumptions; not a universal code requirement.
Why B is correct
Only the eight additional occupants change this component: (28 − 20) × 10 = 80 cfm. The supplied rate is a design assumption, not an independently verified code rate.
