Home › CDL Practice Tests › Air Brakes Questions › Question 85
What additional check follows the leakage tests if pressure loss is near the limit but no leak is obvious?
- A.Ignore it and retest next month
- B.Add sealant to every fitting
- C.Listen and feel for air escaping at hoses, chambers, valves, and gladhands while the system is pressurized
- D.Raise the governor setting to compensate
Correct answer
C. Listen and feel for air escaping at hoses, chambers, valves, and gladhands while the system is pressurized
Why
Gauges say how much is leaking, but ears and hands find where. A systematic walk-around under pressure usually reveals the hissing fitting or chamber that the numbers reported.
Manual topic: Air Brakes - Air Leakage and Brake Tests · From the Air Brakes practice bank (AB-085).