Practice question

For the Washington CDL Air Brakes knowledge test, if the ABS warning lamp comes on while driving, what should you do?

  1. Stop immediately — you have no brakes
  2. Drive normally — the regular service brakes still work, but ABS is not functioning and the system should be repaired soon
  3. Apply only the parking brake
  4. Drain the air tanks

Answer: B — Drive normally — the regular service brakes still work, but ABS is not functioning and the system should be repaired soon

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Practice more: Washington CDL Air Brakes Test Practice Questions - Washington Commercial Driver License (CDL) Air Brakes Knowledge Test Exam →