Question: Which of the following does not serve the purpose of using patterns in sand casting?
Options
A : Contain core prints if the casting requires a core and need to be made hollow
B : To give the exact shape and size (in addition to the allowances) to the casting as that of the final object
C : Reduces the cost of production while used in mass production
D : Sometimes used to carry the mechanism to melt the metal/material which is to be poured into the cavity
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