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Which sand is generally used repetitively for mould making?(a) Silica sand(b) Zircon(c) Olivine(d) Dolomite |
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Answer» Correct option is (a) Silica sand Best explanation: Silica sand has this as one of its advantages, that it can be used again and again for making moulds. This repetitive use of silica sand makes production even more inexpensive. |
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