When operating a vehicle with a dual air brake system, the driver should:

Question

Before driving a vehicle with a dual air brake system, allow time for the air compressor to build up a minimum of 100 psi pressure in both the primary and secondary systems. Watch the air pressure gauges to monitor the pressure levels.

Accepted Answer

Let the air compressor build up a minimum of 100 psi pressure in the primary and secondary systems before driving.

Answer

Let the vehicle warm up before driving to ensure that the fuel reaches the engine.

Answer

Begin driving just after the vehicle starts.