FDNYC Certificate of Fitness (G60) Practice Exam 2025 – Your All-in-One Guide to Exam Success!

The key difference between Class II and Class III standpipes is that Class III provides connections for both firefighters and trained personnel. Class III standpipes are designed to meet the needs of both professional firefighters and those who have received training, allowing them to effectively control and extinguish fires in various situations. This is essential in buildings where occupants may need to respond to emergencies before professional help arrives.

Class II standpipes, on the other hand, are primarily intended for firefighting efforts by firefighters and do not accommodate trained personnel to the same extent. They typically feature a 1 ½-inch outlet designed for use with a hose, but they lack the dual functionality seen in Class III systems, which cater to a broader range of users. Understanding these differences is critical for effective fire response planning and for ensuring the safety of both trained personnel and emergency responders.