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The explanatory texts for the questions were machine translated. More info

All explanatory texts were compiled in German and then machine translated. This may result in translation errors. However, this only refers to the explanations to the questions. The translations of the questionnaires were done by TÜV | DEKRA arge tp 21 and are exactly the same as the translations in the theory test. These translations are only available once you are logged in. All other translations on the website were done by a different translation agency.
Grundstoff, Mofa

Wie wirkt sich eine wesentliche Unterschreitung des empfohlenen Reifendrucks aus?

Der Schadstoffausstoß nimmt ab
If the tire pressure is too low, we have to give more throttle to maintain the speed. Therefore, more fuel is consumed. As fuel consumption increases, pollutant emissions also increase.
Der Reifenabrieb nimmt zu
If the tire has too little air, then it rolls heavier. So we have to overcome a higher rolling resistance. But that means we have to transfer more power. The higher the force to be transmitted to the wheel, the more the tire is stressed. The wear and thus the tire wear increases.
Der Kraftstoffverbrauch nimmt zu
Anyone who has ever ridden a bicycle and had very little air in the tire, knows that the bike then drives harder than usual. It takes much more power to get ahead. The same is true of the car, the tires are heavier, and we are giving much more throttle for the same speed. This increases fuel consumption.

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