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The minimum crushing strength of third class brick is:(a) 3.5 N/mm^2(b) 7 N/mm^2(c) 10 N/mm^2(d) 20 N/mm^2 |
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Answer» The correct answer is (a) 3.5 N/mm^2 To elaborate: As per IS codes, the minimum crushing strength of first class brick is 10.5 N/mm^2, second class is 7 N/mm^2 and third class is 3.5 N/mm^2. |
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