At what pressure do non-ABS brakes governor cut out?

The non-ABS (Anti-lock Braking System) brakes governor typically cuts out at a pressure of 120 psi. This cut-out pressure is important for the safe operation of the braking system. When the pressure in the air system reaches this threshold, the governor allows the air supply to maintain the braking system pressure, ensuring that the brakes can operate effectively without being overly pressurized.

Maintaining the proper brake system pressure is crucial for ensuring reliable brake performance under various conditions, including emergency situations. Knowing this cut-out point helps operators understand the functionality of the air braking system in their vehicle, highlighting the importance of monitoring air pressure to maintain safety and performance standards when driving.

The other options presented do not reflect the correct cut-out pressure for non-ABS systems, indicating a clear understanding of brake system functionality is essential for proper operation.