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Question:
Charge the trailer brakes (push the “air supply” knob in), and check for air at the rear of the second trailer by opening the emergency line shut-off. If the air pressure is not there, something is wrong and the brakes will not work. [California Commercial Driver Handbook]
Comments
Alkam 2126
4 years ago
It a great app to study for your CDL tests
Cbow33
4 years ago
Great app
Livvy2u
4 years ago
Mom