Practice question

A driver starts down a long grade in too high a gear and begins riding the brakes. What risk is highest?

  1. Brake overheating and fade, possibly leading to a runaway
  2. Instant compressor cut-out at 300 psi
  3. Automatic removal of the L restriction
  4. Immediate tank draining

Answer: A — Brake overheating and fade, possibly leading to a runaway

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