Practice question

What is the primary function of the air filter in a vehicle's engine?

  1. To clean the air entering the engine cylinders, preventing dust and grit from damaging internal components
  2. To filter the engine oil before it circulates through the block
  3. To clean the air inside the passenger cabin
  4. To reduce exhaust emissions by filtering tailpipe gases

Answer: A — To clean the air entering the engine cylinders, preventing dust and grit from damaging internal components

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