Q:
Which of the following does not serve the purpose of using patterns in sand casting?
| A) Contain core prints if the casting requires a core and need to be made hollow
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B) To give the exact shape and size (in addition to the allowances) to the casting as that of the final object
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| 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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Explanation
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