Q 28. In solidification of iron during casting, compensation for solid contraction is: Ops: A. O Provided by oversize pattern B. O Achieved by properly placed riser C. O Obtained by promoting directional solidification

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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Q 28. In solidification of iron during casting, compensation for solid contraction is:
Ops: A. O Provided by oversize pattern
B. O Achieved by properly placed riser
C. O Obtained by promoting directional solidification
D. O Made by providing chills
Transcribed Image Text:Q 28. In solidification of iron during casting, compensation for solid contraction is: Ops: A. O Provided by oversize pattern B. O Achieved by properly placed riser C. O Obtained by promoting directional solidification D. O Made by providing chills
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