On plan F2.0. the fire sprinklers in playroom A14 are supplied by what size cross main?

Exhibit.

On plan F2.0. the fire sprinklers in playroom A14 are supplied by what size cross main?
A . 1 in (25 mm)
B . 1 1/4 in (32 mm)
C . 2 1 2 m (64 mm)
D . 3 in (76 mm)

View Answer

Answer: B

Explanation:

On plan F2.0, the fire sprinklers in playroom A14 are supplied by a cross main with a diameter of 1 1/4 inches (32 mm). This size is adequate to deliver the necessary flow rate and pressure required to meet the fire protection demand for a room of this size and occupancy. The sprinkler system design and piping must comply with NFPA 13, Standard for the Installation of Sprinkler Systems, which outlines the required sizing and installation practices for fire protection systems in various types of

occupancies, including playrooms and similar spaces.