Question

defination of lubricant with example​

Answer 1

Answer:

noun. A substance, such as grease or oil, that reduces friction when applied as a surface coating to moving parts. A slippery liquid, gel, or oil that is used to reduce friction on or soreness of body tissue. One that facilitates conversation or cooperation: saw coffee as a social lubricant.

Explanation:

Common examples of internal lubricants include fatty alcohols, esters (low esterification), and EVA wax. External lubricants provide metal release and help reduce process temperature. Common examples of external lubricants include PE waxes, paraffin, metal soaps, esters (high esterification), amides, and fatty acids.

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Answer 2

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The substances which reduce friction are called lubricant. oil, grease, graphite, and fine powder are lubricant. when a lubricant is applied btw the moving parts of amachine a thin layer is formed there and moving surface do not Directly rub each other.