At low temperatures (say 75°C) the notched-bar impact value of steel

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Vinay Kumar

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📊 Machine Design

Q. At low temperatures (say 75°C) the notched-bar impact value of steel

(A) increases markedly
(B) decreases markedly
(C) remains same
(D) depends on heat treatment carried out

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✅ Correct Answer: (B) decreases markedly

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