A vertical gating system has a sprue height of 250 mm, one ingate located 150 mm below the mould top and the second ingate 200 mm below mould top. What should be the ratio of cross-sections of the two ingates to ensure equal flow rate from both.

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Stress transformation

The term stress indicates the measure of internal forces that develop due to an external force's application on an object. When a specific external force is applied to an object, internal stress generates in the material. The value of stress can obtain by taking the ratio of the externally applied force and cross-sectional area of the object. There are different types of stress depending on the type of external force.