Which one of the following materials will require the largest size of riser for the same casting?

Which one of the fol

1.	Which one of the following materials will require the largest size of riser for the same casting?
A.	Aluminum
B.	Cast iron
C.	Steel
D.	Copper.
Answer» C. Steel

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Which one of the following materials will require the largest size of riser for the same casting?

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