(A) Tempering (X)
(B) Rapid heating ()
(C) Rapid cooling (X)
(D) Slow cooling (X)
Answers; Rapid heating of grey cast iron produces white cast iron .
(A) Tempering (X)
(B) Rapid heating ()
(C) Rapid cooling (X)
(D) Slow cooling (X)
Answers; Rapid heating of grey cast iron produces white cast iron .
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