Driving theory questions

Which option is true?

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Review of the options:

  • All internal combustion engines contribute equally to the greenhouse effect.
    – Wrong, a large fuel-guzzling engine is worse than a small one.

  • Ethanol is a greenhouse gas.
    – Wrong, ethanol is a type of fuel, not a gas.

  • The permitted time of engine idling is often limited.
    – Correct, examples of regulations regarding idling: Skellefteå

  • The unladen weight of a car has no impact on its fuel consumption.
    – Wrong, a heavy car requires more power. More power = more fuel.

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