Topic: Duties of drivers and pedestrians · Nº 60 / 200

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Si su vehículo emite humos negros al circular, ¿qué deberá hacer?

If your vehicle gives off black smoke while you are driving, what should you do?

  • AEvitar circular, pues además de la alta contaminación que producimos podemos dificultar la visibilidad de los otros conductores.Avoid driving, because as well as causing a lot of pollution we may reduce other drivers' visibility.
  • BSi el motor sigue funcionando y el humo no afecta nuestra conducción, podemos continuar la marcha.If the engine keeps running and the smoke does not affect our driving, we may carry on.
  • CSeguiremos circulando normalmente ya que es normal que el vehículo eche humo.Carry on driving normally, because it is normal for a vehicle to give off smoke.
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Correct answer

  • AEvitar circular, pues además de la alta contaminación que producimos podemos dificultar la visibilidad de los otros conductores.Avoid driving, because as well as causing a lot of pollution we may reduce other drivers' visibility.
Explanation

Black smoke is the result of poor combustion, which greatly increases pollution from CO emissions. Driving while polluting above the set limits is prohibited, and the vehicle may even be immobilised. Bluish smoke may be a sign that the engine is burning oil, which gets into the combustion chamber because of a poor seal. White smoke is normal when starting and moving off, but only for the first few minutes, and is caused by water condensing inside the exhaust.

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