Practice question

If the low pressure warning light comes on while you are driving:

  1. Braking will only be possible if there is still enough air in the tanks.
  2. You can apply the brakes 14 times before the air in the system runs out.
  3. You should continue to drive normally and check the brake system when it is convenient.
  4. You should stay at least 100 feet away from other vehicles.

Answer: A — Braking will only be possible if there is still enough air in the tanks.

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Practice more: Indiana CDL Air Brakes Test 2 →