What is the minimum fire extinguisher rating required for fueling operations?

• A. 5-B:C
• B. 10-B:C
• C. 15-B:C
• D. 20-B:C

Answer: (B)

The minimum fire extinguisher rating required for fueling operations is determined by the potential hazards associated with flammable liquids during such activities. A 10-B:C rating indicates that the extinguisher can effectively combat flammable liquids and electrical fires, which are critical considerations in fueling operations. This rating signifies that the extinguisher is capable of putting out fires involving 10 square feet of flammable liquid, which provides sufficient protection against the probable risks involved when refueling aircraft or other vehicles at an airport.

Having a fire extinguisher with a 10-B:C rating ensures that personnel are prepared to handle a range of fire scenarios effectively. A higher rating, such as 15-B:C or 20-B:C, may offer additional capacity but is not the minimum requirement set forth for safe fueling operations. Conversely, a rating such as 5-B:C would not provide adequate coverage, as it restricts the maximum area of flammable liquid that can be safely extinguished. Thus, the 10-B:C rating strikes the necessary balance between effectiveness and practicality for the specific hazards associated with fueling operations.