International Code Council Fire Inspector Fire-Inspector-II Question # 3 Topic 1 Discussion

IFC Section 903.3.5 and Appendix B (Fire-Flow Requirements) allow a reduction in fire flow when sprinklers are installed. For a Type II-B building (noncombustible, unprotected), the base fire flow (7,000 gpm) reflects a large, unsprinklered structure (e.g., per Table B105.1(2)). With full sprinkler protection, IFC B105.2 permits a reduction to as low as 25% of the original flow or the sprinkler demand (whichever is greater), typically 1,500 gpm for commercial buildings per NFPA 13 standards, assuming adequate water supply. Options B, C, and D exceed this minimum without justification. Thus, A is correct.