Which of the following sand mold contains free water?
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Green sand is heated to what temperature to convert it into dry sand?
A skin dried mold is dried up to what depth?
In cement bonded sand mold, sand mold material consists of what percentage of silica sand?
In cement bonded sand mold, sand mold material consists of what percentage of Portland cement?
A skin dried mold has to be poured immediately after drying.
In cement bonded sand mold, sand mold material consists of what percentage of water?
For how long is the mold in cement bonded sand mold, allowed to set?
Green sand mold contains high strength.
Which of the following is the principal material used for Nobake moulding process?
In Nobake moulding process, the chemical process of hardening of binder starts when ___________
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