Home › CDL Practice Tests › Air Brakes Questions › Question 168
What can happen if the brakes on the left and right of one axle are adjusted very differently?
- A.The axle will automatically balance itself at speed
- B.Unequal adjustment improves steering on curves
- C.The vehicle can pull toward the side that brakes harder, and the harder-working brake can overheat
- D.Only tire wear changes, with no effect on control
Correct answer
C. The vehicle can pull toward the side that brakes harder, and the harder-working brake can overheat
Why
Unequal stroke means unequal force and timing between wheels that are supposed to stop together. The result can be a pull under braking, uneven lining wear, and one brake fading early from doing extra work.
Manual topic: Air Brakes - Slack Adjusters · From the Air Brakes practice bank (AB-168).