Practice question

Slack-adjuster pushrod stroke on an S-cam air brake should be checked because:

  1. It is unrelated to braking
  2. Excessive pushrod stroke indicates worn brakes or out-of-adjustment slack adjusters, which reduces braking force and is an OOS defect
  3. Long stroke means stronger brakes
  4. Pushrod length is decorative

Answer: B — Excessive pushrod stroke indicates worn brakes or out-of-adjustment slack adjusters, which reduces braking force and is an OOS defect

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