If a truck is FMVSS 121 compliant,which of the following air reservoirs must be incorporated into the air brake circuit?

Question

Quizplus · Accepted Answer

FMVSS 121 requires that air-braked vehicles, including trucks, have a specific configuration of air reservoirs to ensure safe braking. This configuration includes supply, primary, and secondary tanks. The supply tank is the main reservoir from which the primary and secondary tanks are charged. The primary and secondary tanks are used for different circuits of the brake system, ensuring redundancy and reliability in the braking system.

If a Truck Is FMVSS 121 Compliant,which of the Following