SACAA AME Engines Practice Questions - SACAA Aircraft Maintenance Engineer Piston & Gas Turbine Engines (CAT C D) Theoretical Knowledge Examination Exam

What is the primary function of the oil control ring installed on an aircraft engine piston?

To seal combustion pressure within the cylinder dome To scrape excess oil from the cylinder wall and regulate the thickness of the oil film To align the gudgeon pin inside the piston bosses To prevent piston slap during cold engine starting

Correct Answer:

To scrape excess oil from the cylinder wall and regulate the thickness of the oil film

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