Theory questions
Which are the two substances primarily produced by a functioning catalytic converter?
The catalytic converter “produces carbon dioxide and water.” (Driving Licence Book, 19th Edition, page 224).
Useful links:
- Catalytic converter (Körkortonline.se)
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Körkortonline.se offers driving licence theory tests in English (free demo test), Swedish (free demo test). This is an example of an explanation of a test question.
There is also a driving licence book online (2026).
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Category:
- Theory questions: Vehicle
- Theory questions: Environment
- Theory questions: Traffic safety
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