Q. Moisture from the mould can be removed by using of dryer or heater in Co2 moulding.
✅ Correct Answer: (B)
false
Explanation: in co2 moulding, water is never added while preparing a sand mixture. instead of water, sodium silicate is added to act as a binder. hence the moisture is completely eliminated from the mould. so, this process provides great dimensional tolerances and high accuracy in the production of castings.