Class 1 Standpipe is designed to be used by which group, and with what hose size?

Class 1 Standpipe is designed to be used by which group, and with what hose size?

• A. They are equipped with a 1/2 inch hose and used by building occupants
• B. They are equipped with a 2 1/2 inch hose and designed for use by fire personnel only
• C. They are used for water supply to sprinklers
• D. They are portable stand pipes for temporary use

Answer: (B)

Class I standpipes are fixed systems designed for firefighting personnel, not building occupants. The key is the hose size: a 2.5 inch outlet is provided to deliver the flow and pressure firefighters need for attack lines. Smaller hoses used by occupants wouldn’t meet the required flow, and standpipes aren’t intended as sprinkler water supplies or for portable, temporary use. So, a Class I standpipe is equipped with a 2.5 inch hose and designed for use by fire personnel only.

Class I standpipes are fixed systems designed for firefighting personnel, not building occupants. The key is the hose size: a 2.5 inch outlet is provided to deliver the flow and pressure firefighters need for attack lines. Smaller hoses used by occupants wouldn’t meet the required flow, and standpipes aren’t intended as sprinkler water supplies or for portable, temporary use. So, a Class I standpipe is equipped with a 2.5 inch hose and designed for use by fire personnel only.