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Which of the below given formulas is used to calculate hardness coefficient?(a) (Final hardness / initial hardness) × 100%(b) 20 – (loss in weight / 2)(c) 20 – (loss in weight / 3)(d) ((20 – loss in weight) / 3) × 100%This question was posed to me in an online interview.Enquiry is from Tests on Stones topic in portion Materials for Construction of Basic Civil Engineering |
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Answer» The CORRECT choice is (C) 20 – (LOSS in weight / 3) |
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