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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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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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