Why Is Piston Ring Control of Cylinder Wall Oil Film

question 15

Multiple Choice

Why is piston ring control of cylinder wall oil film important on current engines?

• A) Aluminum cylinder walls must be kept lubricated.
• B) Oil must be delivered to the combustion chamber for cooling.
• C) Current engines must maintain higher compression levels.
• D) Excess oil on cylinder walls adversely effects exhaust emissions.

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Definitions:

Health Psychology

A branch of psychology that focuses on how biological, psychological, and social factors affect health and illness.

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A customized program of exercise, education, and support to help patients recover after a heart attack, surgery, or other heart conditions.

Role

The function or part played by a person or thing in a particular situation or context.

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A waxy, fat-like substance that's found in all the cells in your body, which is necessary for making hormones, vitamin D, and substances that help digest foods.