Practice question

What is the purpose of the air compressor governor (gobernador del compresor de aire) in an air brake system?

To govern vehicle road speed at 50 km/h
To control when the air compressor pumps air into the storage reservoirs, cutting in (typically around 100 PSI / 7 bar) and cutting out (around 120–135 PSI / 8.5–9.3 bar) to prevent over-pressurization
To regulate fuel flow to the injectors
To adjust cabin air conditioning temperature

Answer: B — To control when the air compressor pumps air into the storage reservoirs, cutting in (typically around 100 PSI / 7 bar) and cutting out (around 120–135 PSI / 8.5–9.3 bar) to prevent over-pressurization

The correct answer is shown above. Try the full quiz for additional practice.