The burnt on sand causes difficulty in

Related MCQs

• Sand acquires a predetermined shape under pressure and retains the same when pressure is removed. This is due to the property of sand known as
• As compared to green sand in shell moulding cooling rate of cast metal is slow. Hence as compared to green sand castings, shell moulded castings will have
• Permeability of moulding sand is increased due to/by
• Mixing coal dust with moulding sand results in
• Refractoriness in the moulding sand is due to the presence of
• Average amount of sand required in a foundry for making one tonne of casting is nearly
• The purpose of clay in a moulding sand is to
• Sand is broadly specified by
• Clay content of green sand is usually
• The sprue pin/sprue hole used for sand moulds is