Additives can be used for the non-ferrous application to avoid the poor collapsibility of the mould.

Related MCQs

• Which of the following additives are added to the sand in Co2 moulding for the improvement in collapsibility of the sand?
• Continuous passing of Co2 through the mould can decrease the strength of mould and results in a weak mould.
• Moisture from the mould can be removed by using of dryer or heater in Co2 moulding.
• Sometimes over-gassing can cause the sticking of pattern to the mould in Co2 moulding.
• The machine used to mix shell mould particles consistently is                      
• The property ensures the removal of excess sand in the mould box.
• In precision investment casting, to make the mould the prepared pattern is dipped into a slurry. From which material is this slurry is made up of?
• The axis of rotation of the mould should be horizontal for the casting of long pipes in centrifugal casting.
• How much time (in a minute) is usually required for the passing of Co2 through the mould?
• When the molten metal leaks out of mould which defect occurs?