The facting sand used in foundry generally consists of Production Engineering Mcqs May 11, 2019 BILAL KHATTAK0 A.Alumina, clay and silica B.Alumina and clay C.Aluminium and silica D.Silica and binder E.Silica and clay Related Mcqs: Permeability of a foundry sand is Loams sand generally has Sodium silicate in sand in often used as The main constituent of moulding sand is Refractoriness in the moulding sand is due to the presence of Hand tool used in foundry shop for mixing and conditioning the foundry sand is termed In the manufacture of urea from ammonia and carbon dioxide The principal ingredients of moulding sands are Clay used for foundry sand should be Which grain shape of sand particles is least preferred for foundry sands?