Practice question

What is the function of the catalytic converter in a vehicle's exhaust system?

To increase engine exhaust flow speed and horsepower
To convert harmful exhaust gases (like carbon monoxide and nitrogen oxides) into less harmful gases
To cool the exhaust gases before they reach the muffler
To store carbon deposits for disposal during servicing

Answer: B — To convert harmful exhaust gases (like carbon monoxide and nitrogen oxides) into less harmful gases

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