The Catalytic Converter Quiz
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?
What year did the catalytic converter make its debut?
What is the term used to describe the ideal ratio of air to fuel in an internal combustion engine?
- The pneumatic point
- The hydrodynamic point
- The stoichiometric point
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?
- Nitrogen gas (N2)
- Carbon dioxide (CO2)
- Water vapor (H2O)
New lawn mower engines contribute ______ times more smog-forming emissions than new cars.
In chemistry, what is the name of a substance that causes or accelerates a chemical reaction without itself being affected?
Catalysts work best at temperatures that are considered to be fairly ______.
What's another name for urea?
A standard catalytic converter contains several hundred dollars worth of what materials?
- Gold, silver and bronze
- Platinum, palladium and rhodium
- Chromium, platinum and silver
What is the name of the catalyst in the second stage of the catalytic converter?
- The catalytic catalyst
- The reduction catalyst
- The oxidation catalyst
What are the two main types of structures used in catalytic converters?
- Honeycomb and ceramic beads
- Waffle and ceramic beads
- Corrugated and ceramic beads