Which of the following is NOT a function of lubricant oils?
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A.
Increasing friction
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B.
Cooling through heat dissipation
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C.
Protecting against corrosion and rust
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D.
Cleansing by removal of contaminants
Correct Answer:
A. Increasing friction
Explanation:
The primary objective of a lubricant is to minimize friction by creating a protective film between moving surfaces. While lubricant oils serve several critical secondary roles, including the dissipation of heat for cooling, the prevention of rust and corrosion through surface protection, and the removal of contaminants to maintain cleanliness, they are specifically designed to reduce resistance rather than increase it. Therefore, increasing friction is not a function of lubricant oils.
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