Q:
Which of the following is ?not? an advantage of the usage of pattern in a casting of metals?
| A) Using patterns to cast objects, less time is consumed for mass production
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B) It is cost efficient and profitable for mass production
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| C) Production of the pattern requires extra effort to cast the object
| D) Cores in the pattern could be used to decrease the amount of machining done for making cavities
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Explanation
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