Group 3 · Faults that prohibit operating a vehicle · Question 12 of 59
A vehicle may not be operated if:
Choose an answer to check yourself.
Answer and explanation
Correct answer: In both cases.
Explanation
Both are faults. Operation is prohibited if the crankcase ventilation system is not sealed, and also if frost-resistant and non-frost-resistant tires are fitted on the same axle (Rules, Annex 2, item 5(4); item 4(5)).

