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Hot strength is seen at what temperature?(a) Above 212°F(b) Above 312°F(c) Above 412°F(d) Above 512°F |
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Answer» The correct answer is (a) Above 212°F Explanation: Hot strength basically is the strength of the sand which is present inside the mould cavity. It is observed that, the hot strength of any material is at 212°F or above it. |
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