🛞South Carolina Air Brakes — Question 8 of 20
Parking or emergency brakes of trucks and buses can be legally held on by ____ pressure.
South Carolina 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+
South Carolina DMV
Official CDL PortalReady to pass your South Carolina CDL Air Brakes exam?
Get full practice exams, study mode, and simulated tests with detailed explanations.