Practice question

Which statement best describes the older front-brake limiting valve mentioned in CDL air-brake study material?

  1. It should be used on every normal stop
  2. It was an older control that reduced front-wheel braking on slippery roads, but drivers should usually leave it in the normal position
  3. It replaces ABS on modern vehicles
  4. It drains the front service tank

Answer: B — It was an older control that reduced front-wheel braking on slippery roads, but drivers should usually leave it in the normal position

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