1.

In green sand mould, what is the indication of the word green?(a) It shows polymeric mould has been cured(b) Mould is green in color(c) Mould contains moisture(d) Mould has been totally dried

Answer» The correct option is (c) Mould contains moisture

Explanation: Green sand mould contains 3-6 % of water, due to containing of moisture it is termed as green sand. Green sand has enough strength so that the constructed mould retains its shape. Moisture makes the sand more feasible and 95% reusable.


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