Cast iron and steel pipes are produced by ____________ casting?
Correct answer: D. True centrifugal
- A. Die
- B. Investment
- C. Slush
- D. True centrifugal
Explanation
Pipes are commonly made by true centrifugal casting, in which molten metal is forced against a rotating mould wall to produce a dense, sound, hollow casting. Die, investment and slush casting are not normal large-pipe production methods.
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