What performance standard must ARFF vehicles meet for grade climb?

• A. 30%
• B. 40%
• C. 50%
• D. 60%

Answer: (B)

The performance standard that ARFF (Aircraft Rescue and Firefighting) vehicles must meet for grade climb is 40%. This standard ensures that ARFF vehicles are capable of maneuvering effectively in various terrains and conditions they might encounter during emergency situations at an airport. A grade climb capability of 40% allows these vehicles to navigate inclines that may be present in and around airport areas, ensuring they can reach aircraft and other critical locations quickly, regardless of the slope.

This requirement is essential for the operational readiness and effectiveness of ARFF units, as they must often respond to emergencies in challenging environments. Meeting this standard reflects the vehicle's overall power and agility, which is vital for swift and effective emergency response at airports.