Practice question

Why should exhaust components be inspected during a pre-trip?

  1. Leaks or poor mounting can allow fumes into the cab or damage nearby lines and wiring
  2. Exhaust color determines the CDL class
  3. Only diesel vehicles require exhaust systems
  4. Exhaust inspection is used only for passenger endorsements

Answer: A — Leaks or poor mounting can allow fumes into the cab or damage nearby lines and wiring

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