What effect does a worn exhaust have on a vehicle?

  1. It causes the water coolant to leak from the engine.
  2. It causes noise and gas pollution levels to increase.
  3. It decreases fuel consumption.
  4. It causes oil to leak on the road.

Correct Answer

It causes noise and gas pollution levels to increase.

Explanation: A vehicle with a worn exhaust will probably be noisier and will produce more polluting emissions. There are strict regulations governing the noise and emission levels of vehicles; and these are rigorously checked during a vehicle's NCT.

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