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Auto information · Difficulty 2

Try this ASVAB-style question.

Choose your answer before opening the explanation. This original practice item is for preparation and does not reproduce an official test question.

Question

Which term matches this description: an exhaust device that converts harmful gases into less harmful compounds?

  1. brake caliper
  2. thermostat
  3. spark plug
  4. catalytic converter
Reveal answer and explanation

catalytic converter

catalytic converter is an exhaust device that converts harmful gases into less harmful compounds. Exhaust passes through a catalyst before leaving the tailpipe.