1.

Which of the following should be used to reduce friction on a carrom board? (a) a lubricating oil (b) a dry lubricant (c) a layer of grease (d) a ball bearing

Answer» Which of the following should be used to reduce friction on a carrom board?
(a) a lubricating oil
(b) a dry lubricant
(c) a layer of grease
(d) a ball bearing


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