Home › CDL Practice Tests › Air Brakes Questions › Question 45
A compressor passes excessive oil into the air system. What is the likely long-term result if it is ignored?
- A.Brakes will work better because parts are oiled
- B.The governor will automatically correct itself
- C.Oil buildup can foul valves and dryers, contaminate brake parts, and combine with water as sludge in the tanks
- D.Only the paint near the compressor is affected
Correct answer
C. Oil buildup can foul valves and dryers, contaminate brake parts, and combine with water as sludge in the tanks
Why
A small amount of oil mist is normal, but heavy oil passing signals compressor wear. Left alone, the deposits cause sticking valves and shortened component life throughout the brake system.
Manual topic: Air Brakes - Air Compressor and Governor · From the Air Brakes practice bank (AB-045).