Catalytic converters are amazingly simple devices that have proven to be highly effective at reducing harmful emissions produced by car engines. How much do you know about catalytic converters?
Question 1 of 10
What year did the catalytic converter make its debut?
Question 2 of 10
What is the term used to describe the ideal ratio of air to fuel in an internal combustion engine?
Question 3 of 10
The main emissions of a car engine are nitrogen gas, carbon dioxide and water vapor. Which one of these mostly benign emissions is believed to contribute to global warming?
Question 4 of 10
New lawn mower engines contribute ______ times more smog-forming emissions than new cars.
Question 5 of 10
In chemistry, what is the name of a substance that causes or accelerates a chemical reaction without itself being affected?
Question 6 of 10
Catalysts work best at temperatures that are considered to be fairly ______.
Question 7 of 10
What's another name for urea?
Question 8 of 10
A standard catalytic converter contains several hundred dollars worth of what materials?
Question 9 of 10
What is the name of the catalyst in the second stage of the catalytic converter?
Question 10 of 10