MCQOPTIONS
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| 1. |
For lean concrete bases and simple foundation for masonry walls ________ grades of concrete may be used. |
| A. | M40 and M35 |
| B. | M5 and M7.5 |
| C. | M10 and M20 |
| D. | M1.5 and M2.5 |
| Answer» C. M10 and M20 | |