MCQOPTIONS
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| 1. |
Crushing strength of a first class brick should not be less than_____________? |
| A. | 3.5 N/mm2 |
| B. | 7.0 N/mm2 |
| C. | 10.5 N/mm2 |
| D. | 14.0 N/mm2 |
| Answer» D. 14.0 N/mm2 | |