The maximum floor area on any one floor in an ordinary hazard occupancy that is supplied by one system is _______.

The maximum floor area on any one floor in an ordinary hazard occupancy that is supplied by one system is _______.

• A. 40,000 sq ft
• B. 60,000 sq ft
• C. 75,000 sq ft
• D. 52,000 sq ft

Answer: (D)

The design concept here is that a single sprinkler system on one floor is limited in the area it can hydraulically cover, based on the occupancy’s hazard classification. For an ordinary hazard occupancy, the standard maximum floor area that one system can serve on a single floor is 52,000 square feet. This limit helps ensure the water supply, pressure, and sprinkler demands are achievable with a single hydraulically designed system. If the floor area exceeds this limit, you would typically split the protection into additional systems or zones, each with its own hydraulics and water supply. The other figures don’t match the common ordinary-hazard allowance, which is why 52,000 square feet is the correct choice.

The design concept here is that a single sprinkler system on one floor is limited in the area it can hydraulically cover, based on the occupancy’s hazard classification. For an ordinary hazard occupancy, the standard maximum floor area that one system can serve on a single floor is 52,000 square feet. This limit helps ensure the water supply, pressure, and sprinkler demands are achievable with a single hydraulically designed system. If the floor area exceeds this limit, you would typically split the protection into additional systems or zones, each with its own hydraulics and water supply. The other figures don’t match the common ordinary-hazard allowance, which is why 52,000 square feet is the correct choice.