Practice question

During an exhaust system inspection on a school bus, the technician should pay particular attention to the integrity of the exhaust and its routing because:

  1. Exhaust appearance affects resale only
  2. Exhaust leaks and poor routing can allow exhaust/carbon monoxide entry into the passenger compartment, a critical school-bus safety issue
  3. Exhaust leaks improve fuel economy
  4. Exhaust routing has no safety relevance

Answer: B — Exhaust leaks and poor routing can allow exhaust/carbon monoxide entry into the passenger compartment, a critical school-bus safety issue

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