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Question 4284

The muffler...

  1. is not a part of the engine exhaust system.
  2. reduces or muffles the explosions produced inside the engine.
  3. has no influence on pollution.
Show answer and explanation

Correct answer: reduces or muffles the explosions produced inside the engine.

The muffler is the widest section of the exhaust pipe. Inside it, gases from combustion in the engine cool down and slow down, then leave with much less noise. That is why it reduces noise pollution.

Mecánica y entretenimiento simple del automóvil. Edición 2019