Theory exam

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How long before departure should you preheat the engine if the outside temperature is +10 °C?

  • Correct: 20 minutes.
  • Incorrect: 1 hour.
  • Incorrect: 1 hour and 30 minutes.
  • Incorrect: The heater should not be used, as it is only effective in sub-zero temperatures.

Connect the heater “for twenty minutes if the outside temperature is up to +10°”. (Swedish Transport Administration)


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