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Mr. Dubey • 52.74K Points
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Q. Which of the following moulds or moulding is also known as sodium silicate process.

(A) shell moulding
(B) permanent moulding
(C) slush moulding
(D) co2 moulding
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Explanation by: Mr. Dubey 
 carbon dioxide moulding is also known as sodium silicate process is one of the widely used processes for preparing of moulds and cores. basically, sodium silicate is used as a binder, but it binds the sand

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