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Topic: Vehicle mechanics and maintenance · Nº 437 / 539

¿A qué sistema del vehículo pertenece la caja de velocidades?

Which vehicle system does the gearbox belong to?

  • ATransmisión.Transmission.
  • BDirección.Steering.
  • CRefrigeración.Cooling.
Show answer

Correct answer

  • ATransmisión.Transmission.
Explanation

The transmission system transmits the engine's power to the driving wheels. It is made up of: the clutch, the gearbox, the propeller shaft, the differential (bevel gear and differential unit) and the drive shafts. The job of the gearbox is to change the gear ratio between the engine and the wheels, to adapt the wheels' speed to traffic needs.

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.