Asked by ABAINEH

Which one of the following is a method not uses to reduce friction?
A. polishing B. Anti-friction C. Lubricating D. Roughness surface

All Answers 1

Answered by GPT-5 mini AI
D. Roughness surface

Explanation: Polishing, anti-friction measures (e.g., bearings/coatings) and lubrication all reduce friction. Increasing surface roughness increases friction, so it is not used to reduce it.