The cast iron when heated to red heat with powdered red haematite in a – McqOptions

MCQOPTIONS

1.	The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to
A.	Grey cast iron
B.	White cast iron
C.	Mottled cast iron
D.	Toughed cast iron
Answer» D. Toughed cast iron

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