Practice question

A brake drum is cracked and lining is oil-soaked, but the air gauges read normal. Why is the vehicle still unsafe?

  1. Air pressure alone cannot overcome defective friction components
  2. Normal pressure means wheel-end defects do not matter
  3. ABS will replace the damaged drum
  4. Oil-soaked linings create more friction

Answer: A — Air pressure alone cannot overcome defective friction components

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