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← HistoryIn ancient bronze casting using the lost-wax technique, which consequence would result from inadequate crucible preheating?
A)Increased hydrogen absorption by the molten metal
B)Formation of lead oxide defects
C)Premature solidifcation and incomplete mold filling✓
D)Reduced alloy segregation in the casting
💡 Explanation
Incomplete crucible preheating can drop the melt temperature significantly because quenching accelerates heat transfer; therefore premature solidification occurs. Incomplete mold filling occurs, rather than hydrogen defects or alloy segregation; metal would have higher fluidity at optimal temperature, helping it fill small cavities.
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