
Air Brake Check
Practice the in-cab air brake check using the ignition, pressure gauges and brake controls of a straight truck or tractor-trailer.
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Build confidence with interactive CDL training exercises. Follow the guided steps, then try Practice Check to see what you remember.

Practice the in-cab air brake check using the ignition, pressure gauges and brake controls of a straight truck or tractor-trailer.
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Find inspection points on a tractor or tractor-trailer and practice explaining what to check at each one.
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Practice the sequence for connecting and disconnecting a Class A tractor and trailer.
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