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What is the tensile strength of grade 220 iron?(a) 220 Dyne/mm^2(b) 220 N/m^2(c) 220 N/mm^2(d) 220 Dyne/cm^2 |
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Answer» The correct option is (c) 220 N/mm^2 Easiest explanation: According to the standards of UK, the castings are made in a specified grade of iron. Hence, iron having a grade of 220, is equivalent to iron having a tensile strength of 220 N/mm^2. |
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