Q. 184.8( 15 Votes )
Enlist any four meth
(i) by applying a lubricant (ii) by using ball bearing(iii) by polishing surfaces(iv) In the machines where oil cannot be used air cushion between the parts is used to reduce friction.(v) by streamlining.
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation