A truck driver complains that air is being discharged from somewhere in the supply circuit at a frequency of every minute or so: there is no evidence of continuous air leakage on the truck.Which of the following should be checked out first?

Question

Quizplus · Accepted Answer

The correct answer is D) defective air dryer purge valve. This is because the air dryer purge valve is responsible for releasing air and moisture from the air brake system, and if it is defective, it could cause air to be discharged intermittently, matching the truck driver's complaint. Continuous air leakage would suggest a different issue, but the intermittent discharge points towards a problem with the air dryer purge valve.

A Truck Driver Complains That Air Is Being Discharged from Somewhere