If the pouring basin has a much larger cross-sectional area than the sprue bottom, then the velocity of the molten metal is?

If the pouring basin has a much larger cross-sectional area than the sprue bottom, then the velocity of the molten metal is? Correct Answer low

The molten metal flows through a sprue to a runner and a gate and fills the mold cavity. If the pouring basin has a much larger cross sectional area than the sprue bottom, then the velocity of the molten metal at the top of the pouring basin is very low and can be taken to be zero.
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