MCQOPTIONS
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MCQOPTIONS
| 1. |
Portland cement is made by calcining at temperature equals to ___________ |
| A. | 3000<sup>0</sup>C |
| B. | 1500<sup>0</sup>C |
| C. | 1800<sup>0</sup>C |
| D. | 2000<sup>0</sup>C |
| Answer» C. 1800<sup>0</sup>C | |