You move from a hydraulic-brake truck to one with air brakes. What should you expect when you press the pedal?
Right! Air brakes have a lag of about half a second or more before they begin working. 📖 p. 5-9
Who takes it: every CDL class (A, B and C).
Needed to drive a truck or bus with air brakes. Without it, your CDL gets an air brake restriction. 25 questions, 20 right to pass (80%).
You move from a hydraulic-brake truck to one with air brakes. What should you expect when you press the pedal?
Right! Air brakes have a lag of about half a second or more before they begin working. 📖 p. 5-9
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Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · PennDOT