MCQOPTIONS
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| 1. |
What is the dry tensile strength of core sand mixture for general purpose? |
| A. | 15 kg/cm<sup>2</sup> |
| B. | 16 kg/cm<sup>2</sup> |
| C. | 17 kg/cm<sup>2</sup> |
| D. | 18 kg/cm<sup>2</sup> |
| Answer» D. 18 kg/cm<sup>2</sup> | |