Home › CDL Practice Tests › Combination Vehicles Questions › Question 209
You apply the trailer brakes with the hand valve while rolling slowly in a test area and the trailer pulls noticeably to one side. What does this suggest?
- A.It is the normal behavior of all trailers with ABS
- B.It means the trailer is loaded correctly for turning
- C.Pulling proves the stronger side is the only side that needs inspection
- D.Uneven trailer braking, such as one brake out of adjustment, contaminated, or not applying, which must be corrected before the trip
Correct answer
D. Uneven trailer braking, such as one brake out of adjustment, contaminated, or not applying, which must be corrected before the trip
Why
Brakes that do not match side to side will pull the trailer in every stop and can start a swing in a hard one. The cause is found and fixed in the yard, not managed on the road.
Manual topic: Combination Vehicles - Air Brake Tests · From the Combination Vehicles practice bank (CV-209).