Which procedure is used in controlled braking?
Answer: A
Keeping the vehicle straight and applying the brakes firmly without locking up.
Controlled braking involves keeping the vehicle straight and applying the brakes firmly but not locking them up.
All choices
- AKeeping the vehicle straight and applying the brakes firmly without locking up.
- BBraking hard enough to lock up the brakes briefly before releasing and then repeating.
- CPress the brake pedal firmly while supplementing with the parking brakes at the same time.
Why the other answers are wrong
B. Braking hard enough to lock up the brakes briefly before releasing and then repeating.
Choice B is wrong because locking up the brakes briefly is part of stab braking, not controlled braking.
C. Press the brake pedal firmly while supplementing with the parking brakes at the same time.
Choice C is wrong because using the parking brakes simultaneously is not part of controlled braking procedure.
CDL Air Brakes Test Info
Questions on Exam
25
Passing Score
80%
Time Limit
Typically 30 minutes; varies by testing location
The Air Brakes test content is federally standardized, so this question applies in every state. Age limits, fees, and testing procedures do vary — check your state's CDL requirements.
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