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    • Question

      What is the function of piston rings in an internal

      combustion engine?
      A Control the cylinder lubrication Correct Answer Incorrect Answer
      B Transmit heat away from the piston Correct Answer Incorrect Answer
      C Form a gas-tight combustion chamber Correct Answer Incorrect Answer
      D Reduce contact area between cylinder and piston Correct Answer Incorrect Answer

      Solution

      Piston rings reduce the contact area between the cylinder and piston, preventing excessive wear and controlling cylinder lubrication.

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