MCQOPTIONS
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| 1. |
WHICH_OF_THE_FOLLOWING_ADDITIVES_ARE_ADDED_TO_THE_SAND_IN_CO2_MOULDING_FOR_THE_IMPROVEMENT_IN_COLLAPSIBILITY_OF_THE_SAND??$ |
| A. | Copper oxide |
| B. | Wood flour |
| C. | Aluminium oxide |
| D. | Oil |
| Answer» D. Oil | |