What is the minimum dry chemical capacity required for Index E vehicles?

• A. 400 lbs
• B. 500 lbs
• C. 600 lbs
• D. 700 lbs

Answer: (C)

For Index E vehicles, which are typically larger and may include cargo aircraft or aircraft with higher passenger capacities, the minimum dry chemical capacity specified is 600 lbs. This requirement is in place to ensure that an effective amount of suppressive agent is available to combat potential fires that can arise from fuels and materials associated with these larger aircraft. The capacity of 600 lbs reflects the need for adequate firefighting resources to respond to emergencies, considering the potential size and complexity of the fires in these scenarios. This standard is established by national guidelines, such as the NFPA and FAA regulations, to enhance safety and ensure appropriate preparedness in airport operations.