Practice question
During New Jersey CDL air-brake preparation, you should NOT use the parking brake if:
- You are parked on level ground
- The brakes are very hot (such as just after going down a long mountain grade) or wet in freezing weather where they could freeze
- You are parked overnight
- The vehicle is empty
Answer: B — The brakes are very hot (such as just after going down a long mountain grade) or wet in freezing weather where they could freeze
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Practice more: NJ CDL Air Brakes Test Practice Questions - New Jersey Commercial Driver License (CDL) Air Brakes Knowledge Test Exam →