Areas in a garage adjacent to classified locations in which flammable vapor release is unlikely (such as a storeroom) shall be unclassified where ____.

Question

Quizplus · Accepted Answer

Mechanically ventilating the area at a rate of four (or more) air changes per hour can effectively prevent flammable vapor buildup and make the area safe for unclassified use. Option A (negative air flow), C (hermetically sealing doors), and D (keeping electrical wiring at a safe distance) may also provide some level of safety, but they are not sufficient on their own to ensure that the area can be classified as unclassified.

Areas in a Garage Adjacent to Classified Locations in Which