Active Practice Session

Combination Vehicles #7

Question 12

How can you check if air is reaching all the brakes on the trailers?

A Check the tire pressure on each trailer. B Listen for a whistle from the trailer's undercarriage. C Open the emergency line shut-off valve at the last trailer and listen for air escaping. Then open the service line valve and listen, for air escaping. D None of the above

Select an answer to continue.