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For a good building stone how much is the required crushing strength?(a) Less than 50 N/mm^2(b) Greater than 100 N/mm^2(c) 155 N/mm^2(d) 10 N/mm^2 |
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Answer» Right option is (b) Greater than 100 N/mm^2 To explain I would say: Crushing strength or compressive strength of a stone is the load per unit area at which the stone starts cracking. It should be greater than 100 N/mm^2 to ensure sufficient strength for use in construction. |
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