There is no need for any external support for the shells at the time of pouring of molten metal.

There is no need for any external support for the shells at the time of pouring of molten metal. Correct Answer False

Since the shells are thin, and pouring of molten metal into the shells may cause an imbalance which further leads to failure of the castings. So to avoid this, it may require some outside support to withstand the pressure of the molten metal and to form the castings efficiently with proper balance.
Bissoy MCQ

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