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Topic: Duties of drivers and pedestrians · Nº 34 / 200

Question picture

¿Para qué sirve el silenciador en un vehículo?

What is the silencer on a vehicle for?

  • APara hacer que el vehículo vaya a más revoluciones.To make the vehicle run at higher revs.
  • BPara reducir la cantidad de gases nocivos que expulsa el motor.To reduce the amount of harmful gases the engine gives off.
  • CPara disminuir el ruido de las explosiones producidas en el motor.To reduce the noise of the explosions produced in the engine.
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Correct answer

  • CPara disminuir el ruido de las explosiones producidas en el motor.To reduce the noise of the explosions produced in the engine.
Explanation

The silencer, located in the exhaust pipe, dampens the noise made by the engine's explosions as the gases leave. It does not increase the revs or clean the harmful gases; that is the job of the catalytic converter. Driving with an open exhaust, without a silencer, is prohibited (Article 7.2 of the General Traffic Regulations, RGC).

The rule · Real Decreto 1428/2003, de 21 de noviembre, Reglamento General de Circulación (RGC) · art. 7.2sin el preceptivo dispositivo silenciador de las explosionesRead the full rule

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