What are lubricants and why do we use them?
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Answer:
A lubricant is a substance that helps to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move. It may also have the function of transmitting forces, transporting foreign particles, or heating or cooling the surfaces.
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Answer:
Lubricants are the substances used to prevent wear and tear in machines due to friction
such as oil ,
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