Question

what is the purpose of the catalytic converter?
a) monitors how much unburned gas is in the exhaust.
b) reduces exhaust noise levels.
c) diverts exhaust gases from all cylinders of the engine.
d) converts harmful exhaust into non - toxic gases.

Explanation:

A catalytic converter uses a catalyst to change harmful pollutants in an exhaust gas stream, like carbon monoxide, hydrocarbons, and nitrogen oxides, into less - harmful substances such as carbon dioxide, water vapor, and nitrogen.

Answer:

D. Converts harmful exhaust into non - toxic gases.