Problem $5$: A circular disk of pure lead $(200$ mm diameter and $70$ mm thickness$)$ is needed to be manufactured from sand casting process. The parting line is at the top of disk and cope height is $200$ mm$.$ The density of liquid lead is $10563$ kg$/$m$3.$ The base of sprue is $15$ mm in diameter. Calculate a$)$ velocity of molten metal at the base of the sprue b$)$ flow rate of molten metal into the mold cavity c$)$ time to fill the mold. Problem $5$: A circular disk of pure lead $(200$ mm diameter and $70$ mm thickness$)$ is needed to

be manufactured from sand casting process. The parting line is at the top of disk and cope

height is $200$ mm $.$ The density of liquid lead is $10563k\frac{g}{m^3}.$ The base of sprue is $15$ mm in

diameter. Calculate a$)$ velocity of molten metal at the base of the sprue b$)$ flow rate of molten

metal into the mold cavity c$)$ time to fill the mold.