Question

In machine, friction between moving parts is reduced by 


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Answer 1

Answer:

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Explanation:

Friction can be minimized by using lubricants like oil and grease and by using ball bearing between machine parts. A substance that is introduced between two surfaces in contact, to reduce friction, is called a lubricant. Fluid friction can be minimized by giving suitable shapes to the objects moving in the fluids.

Answer 2

1. Explanation:

• In machine , friction between moving part is reduced by applying lubricant such as Greece , oil ,etc and
• also by using ball bearing in moving part of machine