M

Mr. Dubey • 52.30K Points
Coach 

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

(A) true
(B) false
(C) ---
(D) ---
Correct : Option (B)

Explanation: 
 in co2 moulding, poor collapsibility of the mould is a major disadvantage. although some additives are used for the improvement in the properties of

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