A stored-pressure water-type extinguisher rated 2-A contains how many gallons of water?

A stored-pressure water-type extinguisher rated 2-A contains how many gallons of water?

• A. 1 gallon
• B. 2 gallons
• C. 3 gallons
• D. 2.5 gallons

Answer: (D)

The rating on a water extinguisher reflects how much water it can deliver to meet a standardized test for ordinary combustibles. For stored‑pressure water extinguishers, a 2‑A rating corresponds to about 2.5 gallons of water contained in the unit. That 2.5 gallons is what the extinguisher is designed to discharge under the test conditions, so it’s the correct capacity for this rating. The other listed volumes are not the standard water amounts associated with a 2‑A stored‑pressure water extinguisher.

The rating on a water extinguisher reflects how much water it can deliver to meet a standardized test for ordinary combustibles. For stored‑pressure water extinguishers, a 2‑A rating corresponds to about 2.5 gallons of water contained in the unit. That 2.5 gallons is what the extinguisher is designed to discharge under the test conditions, so it’s the correct capacity for this rating. The other listed volumes are not the standard water amounts associated with a 2‑A stored‑pressure water extinguisher.