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What percentage of powered ferrosilicon is mixed with sodium silicate bonded sand in Nishiyama process?(a) 1%(b) 2%(c) 3%(d) 4%I had been asked this question in quiz.My question is taken from Types of Cores in division Core and Core Making of Casting-Forming-Welding I |
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Answer» Correct ANSWER is (B) 2% |
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