Q. If during spark test, a sample gives dull red sparks, it could be

(A) Mild steel
(B) Medium carbon steel
(C) Cast iron
(D) Non-ferrous material

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✅ Correct Answer: (C) Cast iron

Published by Mr. Dubey ⭐ 111.54K Points at 21-Sep-2023 06:47 pm in Metallurgy

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