Fine sand is used for preparing the moulds for Production Engineering Mcqs April 22, 2019 BILAL KHATTAK0 A.Non-ferrous castings B.Large castings C.Centrifugal castings D.Symmetrical castings E.Small castings Related Mcqs: Loam moulds are A sprue is Skeleton patterns are generally used for Local stress relief treatments are generally given to Metal patterns are used for True centrifugal casting is used to The burnt on sand causes difficulty in Cores are used Green sand moulds are Graphite is sprinkled on to the surface of green sand moulds to