M

Mr. Dubey • 52.30K Points
Coach 

Q. Castings made by the centrifugal casting process have negligible porosity.

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

Explanation: 
 in centrifugal casting, the inclusions such as slag and oxides get segregated towards the centre and can be easily removed by a machining process. and also the application of pressure on the metal throughout the solidification causes the porosity to be eliminated and gives rise to dense metal.

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