What does the supply pressure gauge show?
Right! Supply pressure gauges show the pressure in the air tanks. 📖 p. 5-2
Who takes it: Class A and B.
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%).
What does the supply pressure gauge show?
Right! Supply pressure gauges show the pressure in the air tanks. 📖 p. 5-2
Tap an answer to see if you’re right, and the page
Your score on each part fills in as you study.
Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · DPS