Question

    What is the purpose of piston rings in an

    engine?
    A Increase friction Correct Answer Incorrect Answer
    B Prevent gas leakage Correct Answer Incorrect Answer
    C Absorb engine noise Correct Answer Incorrect Answer
    D Reduce engine weight Correct Answer Incorrect Answer
    E Increase compression ratio Correct Answer Incorrect Answer

    Solution

    Piston rings prevent gas leakage, reduce friction, and control oil distribution within the cylinder.

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