Topic: Vehicle mechanics and maintenance · Nº 78 / 539
Si un neumático presenta mayor desgaste por la parte central de su banda de rodadura, ¿a qué será debido?
If a tyre shows more wear in the central part of its tread, what will be the cause?
- ALlevará más presión que la recomendada por el fabricante.It has more pressure than the manufacturer recommends.
- BLlevará menos presión que la recomendada por el fabricante.It has less pressure than the manufacturer recommends.
- CLas ruedas estarán desequilibradas.The wheels are unbalanced.
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Correct answer
- ALlevará más presión que la recomendada por el fabricante.It has more pressure than the manufacturer recommends.
Bear in mind that a tyre with the wrong pressure wears unevenly, has a higher risk of a blowout and can increase fuel consumption. * With a pressure lower than the manufacturer's: - They wear more at the sides of the tread. - They flex and heat up more. - The risk of a blowout increases. - Grip is reduced and the risk of aquaplaning increases (the tyres cannot clear the layer of water on the road and lose grip). - Fuel consumption increases. * With a pressure higher than the manufacturer's: - They wear more in the centre. - The area of contact with the road and grip are reduced. - They do not absorb bumps in the road well (they vibrate more and the suspension wears).
Independent app: not affiliated with or endorsed by the DGT (Spain's Directorate-General for Traffic) or the Ministry of the Interior. The official exam is booked with the DGT and taken at its test centres. The questions here are practice material; the DGT's official question bank is not public.