In cement bonded sand mold, sand mold material consists of what percentage of Portland cement?
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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 ___________
The Nobake mould have a higher strength as compared to other moulds due to _________
Which of the following statement is true?
The degree or intensity of ramming _________
Permeability of green sand ________
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