A kitchen design explicitly calls for 150 cfm of local exhaust discharged outdoors. A proposed recirculating hood returns all air to the room. Does it meet that stated exhaust requirement?
- AYes; any internal fan counts as outdoor exhaust.
- No; it does not provide the specified outdoor discharge.
- CYes; its recirculating airflow can be counted twice.
- DYes; the requirement disappears if only one person cooks.
Where to look it up
Explicit exercise assumptions; not a universal code requirement.
Why B is correct
Recirculation and outdoor discharge are different flow paths. The proposal fails the supplied requirement; this does not assert a universal kitchen airflow rate.