Topic: Duties of drivers and pedestrians · Nº 101 / 200
El silenciador...
The silencer...
- Ano es una parte del sistema de escape de los motores.is not part of the engine's exhaust system.
- Bdisminuye o silencia las explosiones producidas en el interior del motor.reduces or silences the noise of the explosions produced inside the engine.
- Cno tiene influencia en la contaminación.has no effect on pollution.
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Correct answer
- Bdisminuye o silencia las explosiones producidas en el interior del motor.reduces or silences the noise of the explosions produced inside the engine.
The silencer is an essential part of the vehicle's exhaust system, and its main job is to reduce the noise made by the engine's exhaust gases as they leave the combustion system. While the engine is running, small explosions take place in the cylinders, producing high-pressure gases that make a loud noise when they are expelled. The silencer reduces the impact of that noise, so the vehicle runs more quietly.
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.