ISRO Mechanical & Aerospace 2012 - Question 48

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Which is a wrong statement?

  • A. Phosphorus raises yield point
  • B. Lining of open hearth furnace controls impurities
  • C. Blast furnace uses coke
  • D. Manganese added for fluidity

Answer: B. Lining of open hearth furnace controls impurities

Explanation: Though lining affects chemistry, the statement is flagged as wrong in context.

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