Question

machine have to be maintained give reason​

Answer 1

Answer:

Soiled,dusty parts create more friction. Some parts, affected by the weather,rust and erode.Machines get damaged,or become usless due to such wear and tear . To avoid this,it is very important to take care of machines.

Answer 2

Answer:

Yes it is necessary.

Explanation:

The machines needs to be maintained monthly so that it works smoothly or else it will rust and won't work properly.