Q
Shrinkage allowance on pattern is provided to compensate for shrinkage when the _____________________?
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A
A. Metal changes from liquid state to solid state at freezing temperature
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B
B. Solid phase temperature drops from freezing temperature to the room temperature
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C
C. Liquid metal temperature drops from pouring temperature to room temperature
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D
D. Liquid metal temperature drops from pouring temperature to freezing temperature
Correct Answer:
B. B. Solid phase temperature drops from freezing temperature to the room temperature