The CTIS equipped on an ARFF apparatus can be used _______________ ?

The CTIS equipped on an ARFF apparatus can be used _______________ ?

• A. Only when stationary
• B. Only when moving
• C. When the apparatus is moving OR stationary
• D. Only during maintenance

Answer: (C)

The main idea is that tire pressure management with a center tire inflation system is designed for real-time use during normal vehicle operation, not just when the truck is parked or being serviced. A CTIS lets the crew adjust tire pressures to suit current conditions—deflating for better traction on soft or uneven surfaces or inflating for better stability and fuel efficiency during highway approach or heavy loads—and it can be used whether the apparatus is moving or stationary. This flexibility supports quick adaptation to different terrains and loads without waiting for maintenance or stopping to adjust pressures.

The main idea is that tire pressure management with a center tire inflation system is designed for real-time use during normal vehicle operation, not just when the truck is parked or being serviced. A CTIS lets the crew adjust tire pressures to suit current conditions—deflating for better traction on soft or uneven surfaces or inflating for better stability and fuel efficiency during highway approach or heavy loads—and it can be used whether the apparatus is moving or stationary. This flexibility supports quick adaptation to different terrains and loads without waiting for maintenance or stopping to adjust pressures.