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What is the purpose of piston rings?

Retry Correct Incorrect The piston ring is a split ring that fits onto the outer diameter of a piston in a reciprocating engine. It also helps regulate engine oil consumption by scraping oil from the cylinder walls.

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What is the purpose of piston rings?

• Keep the cylinder sealed
• Keep the oil fresh
• Keep the piston heads sealed so fuel and air doesn’t leak to the crank case
• Help with the brakes