Question: Old MathJax webview correct answer d3=17mm Example 2. A down sprue of length 200 mm has a diameter of 25 mm at its top end.
Old MathJax webview

correct answer d3=17mm
Example 2. A down sprue of length 200 mm has a diameter of 25 mm at its top end. The liquid metal in the pouring cap is maintained upto 56 mm height. What should be the diameter of the down sprue at its lower end to ensure that there is no aspiration effect
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