A motor vehicle in category B can tow either a trailer whose maximum authorised total mass (MTMA) does not exceed 750 kg, or a “heavier” trailer with MTMA over 750 kg, provided that the maximum authorised total mass (MTMA) of the combination formed by the towing motor vehicle and the trailer does NOT exceed 4,250 kg.
Although this answer option seems correct at first glance, the lack of specification regarding the maximum authorised total mass (MTMA) of the combination makes the option incorrect. The simple fact that the MTMA of the trailer is mentioned is not sufficient, since the road legislation requires that the combination must not exceed 4,250 kg in order to be driven with a category B licence.
The correct answer is: A and C
OUG* - Annex 1
The categories of vehicles for which the driving licence is issued, provided in art. 20 paragraph (2), are defined as follows:
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e) category B1: quadricycles whose running order mass does not exceed 450 kg (600 kg for vehicles intended for the transport of goods) and which are equipped with an internal combustion engine whose maximum continuous net power does not exceed 15 kW or with an electric motor whose nominal power does not exceed 15 kW;
f) category B:
1. the motor vehicle whose maximum authorised total mass does not exceed 3,500 kg and whose number of seats, apart from the driver, is not greater than 8;
2. the combination formed from a towing motor vehicle in category B and a trailer whose maximum authorised total mass does not exceed 750 kg;
3. the combination of vehicles whose maximum authorised total mass does not exceed 4,250 kg, formed from a towing motor vehicle in category B and a trailer whose maximum authorised total mass exceeds 750 kg;
g) category BE: the combination of vehicles whose maximum authorised total mass exceeds 4,250 kg, formed from a towing motor vehicle in category B and a trailer or semitrailer whose maximum authorised total mass does not exceed 3,500 kg;
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OUG* - Article 24^1
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(3) Persons holding a category B driving licence are entitled to drive the vehicle combinations provided in letter f) point 3 of Annex no. 1, in the event that the combination exceeds 3,500 kg, only if they prove that they have completed a training course within an authorised training unit for drivers of vehicles.
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OUG* - Article 6
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27. trailer - the vehicle without engine intended to be towed by a motor vehicle or by an agricultural or forestry tractor;
28. light trailer - trailer whose maximum authorised total mass does not exceed 750 kg;
29. semitrailer - trailer whose maximum authorised total mass is partly borne by a motor vehicle or by an agricultural or forestry tractor;
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* OUG = EMERGENCY ORDINANCE no. 195 of December 12, 2002 updated (Road Traffic Code)
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