Practice question

When inspecting the exhaust system, which of the following should not cause concern?

  1. Loose or broken exhaust pipes
  2. Loose or broken mounting brackets
  3. Leaking exhaust system parts
  4. Exhaust system parts that are not rubbing against fuel system parts

Answer: D — Exhaust system parts that are not rubbing against fuel system parts

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

Practice more: Texas CDL Class A Knowledge Test 1 →