Stab braking should not be used on vehicles with:
Answer: C
Anti-lock brakes.
Antilock brake systems (ABS) prevent wheels from locking up during braking. Therefore, stab braking cannot be used on a tractor-trailer that is equipped with ABS.
Source: Alabama CDL Manual
All choices
- AHazardous materials.
- BTrailers.
- CAnti-lock brakes.
Why the other answers are wrong
A. Hazardous materials.
Stab braking is not prohibited specifically because of hazardous materials but due to the presence of ABS.
B. Trailers.
Stab braking can be used on vehicles with trailers unless they have ABS.
Alabama CDL General Knowledge Test Info
Questions on Exam
50
Passing Score
80%
Time Limit
Typically 60 minutes; varies by testing location
Age Requirements
Intrastate: 18+ · Interstate: 21+
Alabama Law Enforcement Agency (ALEA)
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