Practice question

What is the proper procedure for inspecting exhaust system components on a heavy commercial diesel vehicle?

  1. Exhaust leaks are beneficial for cabin warming
  2. Check for secure mounting, severe rust, holes, cracks, and carbon soot marks indicating exhaust leaks that could seep toxic carbon monoxide into the cab
  3. Plug the tailpipe with a cloth to test exhaust pressure
  4. Ensure the exhaust pipe touches the fuel tank

Answer: B — Check for secure mounting, severe rust, holes, cracks, and carbon soot marks indicating exhaust leaks that could seep toxic carbon monoxide into the cab

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