McqMate
| Q. |
Crossing in foundry practice is |
| A. | A means for checking the strength of cores |
| B. | A defect in casting that can be removed by heating in a furnace and cooling at show rate. |
| C. | The process of addition of chemicals to the molten metal to improve its fluidity |
| D. | The process of formation of oxides on the surface of the molten metal |
| E. | The process of forcing metal uniformly into the mould |
| Answer» D. The process of formation of oxides on the surface of the molten metal | |
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