Q.

How much should fuel oil be added to increase the moulding ability of sand?

A. 0.01% – 0.1%
B. 0.02% – 0.2%
C. 0.03% – 0.3%
D. 0.04% – 0.4%
Answer» A. 0.01% – 0.1%
Explanation: fuel oils are known to have great properties in them. fuel oils are helpful in adding to the increase of the moulding
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