Practice question
What is needed federally to remove an air-brake restriction?
- Pass the air-brake knowledge test and successfully perform the air-brake pre-trip/required skills condition
- Only pay for a duplicate card
- Only buy a truck with ABS
- Only drain the tanks once
Answer: A — Pass the air-brake knowledge test and successfully perform the air-brake pre-trip/required skills condition
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Practice more: Minnesota CDL Air Brakes Test Practice Questions - Minnesota Commercial Driver License (CDL) Air Brakes Knowledge Test Exam →