The driver must be able to see a low air pressure warning which comes on before pressure in the service air tanks fall below ____ psi.

Question

Accepted Answer

B: 60. Regulations dictate that a visible low air pressure warning indicator be activated and placed in full view of the operator when the pressure in the air supply system falls lower than 75 to 55 psi.

The driver must be able to see a low air pressure warning which comes on before pressure in the service air tanks fall below ____ psi.

Minnesota CDL Air Brakes Test Info