What is the minimum agent quantity required for a Class II ARFF vehicle?

• A. 300 gallons
• B. 400 gallons
• C. 500 gallons
• D. 600 gallons

Answer: (C)

The minimum agent quantity required for a Class II Aircraft Rescue and Fire Fighting (ARFF) vehicle is established to ensure effective firefighting capabilities in the event of an aircraft incident. A Class II ARFF vehicle is designed to handle situations involving large aircraft and needs to be able to deliver sufficient quantities of firefighting agents rapidly.

The quantity of 500 gallons is specified as the minimum to allow for adequate foam deployment and extinguishing effectiveness during critical incidents. This amount ensures that firefighters can respond to potential fire scenarios with sufficient resources to suppress flames and protect both passengers and aircraft.

In comparison, lower agent quantities would not provide the necessary volume or duration of firefighting efforts, which could compromise the safety and effectiveness of the response in a firefighting situation. Thus, the standard of 500 gallons represents a balance between operational capability and the constraints of vehicle size, making it a crucial specification for Class II ARFF vehicles.