Practice question

What is the purpose of anti-spray mud flaps (splash guards) behind the rear wheels of heavy trucks and trailers?

  1. To prevent road water, mud, stones, and debris from being thrown backward into following vehicles' windshields
  2. To improve truck top speed by 15 km/h
  3. To protect the truck fuel tank from rain
  4. To cool the rear differential housing

Answer: A — To prevent road water, mud, stones, and debris from being thrown backward into following vehicles' windshields

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