M

Mr. Dubey • 52.30K Points
Coach 

Q. Which of the following is a limitation of die casting, but is overcome in vacuum die casting?

(A) the air left in the cavity when the die is closed
(B) the moisture left in the cavity when the die is closed
(C) the air left in the cavity when the die is open
(D) the moisture left in the cavity when the die is open
Correct : Option (A)

Explanation: 
 in die casting the major problem is the air left inside the cavity when the die is closed, but in the case of vacuum die casting this air is evacuated out.

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