🛞Tennessee Air Brakes — Question 17 of 20
The most common type of foundation brake found on heavy vehicles is the:
Tennessee CDL Air Brakes Test Info
Questions on Exam
25
Passing Score
80%
Time Limit
Typically 30 minutes; varies by testing location
Age Requirements
Intrastate: 18+ · Interstate: 21+
Tennessee Department of Safety and Homeland Security
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