Practice question

When inspecting the exhaust system for defects, which of the following should be fixed?

  1. Missing mounting brackets or clamps
  2. A broken exhaust pipe, muffler, or tailpipe
  3. Leaking exhaust system parts
  4. All of the above

Answer: D — All of the above

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: Colorado CDL Tank Test 1 →