MCQOPTIONS
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| 1. |
_ The thickness of base slab of a retaining wall generally provided, is$? |
| A. | One half of the width of the stem at the bottom |
| B. | One-third of the width of the stem at the bottom |
| C. | One fourth of the width of the steam at the bottom |
| D. | Width of the stem at the bottom |
| Answer» E. | |