When the rubbing surfaces are separated from each other by a very thin film of lubricant it is known as

When the rubbing surfaces are separated from each other by a very thin

1.	When the rubbing surfaces are separated from each other by a very thin film of lubricant it is known as
A.	kinetic friction
B.	dry friction
C.	boundary lubrication
D.	none of the mentioned
Answer» D. none of the mentioned

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