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

1.	How much should fuel oil be added to increase the moulding ability of sand?$
A.	0.01% ‚Äö√Ñ√∂‚àö√ë‚àö¬® 0.1%
B.	0.02% ‚Äö√Ñ√∂‚àö√ë‚àö¬® 0.2%
C.	0.03% ‚Äö√Ñ√∂‚àö√ë‚àö¬® 0.3%
D.	0.04% ‚Äö√Ñ√∂‚àö√ë‚àö¬® 0.4%
Answer» B. 0.02% ‚Äö√Ñ√∂‚àö√ë‚àö¬® 0.2%

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