Question
Thu March 03, 2011 By: Archit Srivastava
 

sir my question is -for lubrication we use oils but not water.i know that oil reduces friction but sir why water doesnot.

Expert Reply
Wed March 02, 2011
Dear student
Lubricants need to be liquids of high viscosity. Oils are more viscous than water. Hence they are preferred so as to reduce friction in machine parts.
 
 
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