Question: Down sprue in casting is given a taper shape for: (a) Easy flow of molten metal (b) Easy withdrawal of casting (c) Preventing aspiration of

Down sprue in casting is given a taper shape for:

(a) Easy flow of molten metal

(b) Easy withdrawal of casting

(c) Preventing aspiration of gases through the sprue

(d) Preventing bulging of sprue during pouring

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