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On an urban road with two ordinary lanes per direction and a general limit of 50 km/h, a lorry carrying butane as dangerous goods travels at 40 km/h. If overtaking is neither prohibited nor unsafe, may a school bus overtake it while observing its 50 km/h limit?

Correct answer

Yes, if safe and the bus does not exceed 50 km/h.

Yes, if the manoeuvre can be completed safely without exceeding 50 km/h. Dangerous-goods transport has a 40 km/h maximum on this road, while the bus has the stated urban limit. A lorry travelling at its own maximum does not prohibit lawful overtaking by a vehicle with a higher limit. Overtaking does not allow the bus to exceed its limit, and all other manoeuvre conditions must be observed.

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All options

  • No, because the lorry is already at its own 40 km/h maximum.

  • Yes, if safe and the bus does not exceed 50 km/h.

  • Yes, and it may exceed 50 km/h to overtake.

The real exam in English is a translation of the Spanish original; compare both here.

Show the Spanish original

En una vía urbana con dos carriles ordinarios por sentido y límite genérico de 50 km/h, un camión que transporta butano como mercancía peligrosa circula a 40 km/h. Si no hay prohibición ni peligro para realizar la maniobra, ¿puede adelantarlo un autobús escolar respetando su límite de 50 km/h?

  1. No, porque el camión ya circula a su propio máximo de 40 km/h.
  2. Sí, si es seguro y el autobús no supera los 50 km/h.(Correct answer)
  3. Sí, y para adelantar puede superar los 50 km/h.

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