M

Mr. Dubey • 52.30K Points
Coach 

Q. Which of the following methods of casting is best suited for casting of hollow pipes and tubes?

(A) investment casting
(B) permanent mould casting
(C) die casting
(D) centrifugal casting
Correct : Option (D)

Explanation: 
 specifically, true centrifugal casting is generally used for the making of hollow pipes and tubes, which are axi- symmetric with a concentric hole. molten metal is accumulated at the inward surface of the mould by the rotation of the mould and then the solidification of a melt is taking place.

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