Question

Centrifugal casting is used for making _________

(a) Solid casting

(b) U-tubes

(c) Washing machine parts

(d) Hollow casting

The question was posed to me in examination.

This intriguing question comes from Casting Processes topic in chapter Testing of Materials, Foundry & Powder Metallurgy of Engineering Material & Metallurgy

Answer 1

Right option is (d) Hollow casting

To explain I would say: Centrifugal casting is used for making hollow castings like a pipe without using core. The end of the mold is closed by end cores to prevent the flow of metal. The metal is poured through a long spout and rotated by an electric motor or by mechanical means.