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Building Materials - Section 1 :: Discussion
| 5. | Pick up the correct statement from the following: | |
| A. | For thin structures subjected to wetting and drying, the water cement ratio should be 0.45 | |
| B. | For mass concrete structures subjected to wetting and drying, the water ratio should be 0.55 | |
| C. | For thin structures which remain continuously under water, the water-cement ratio by weight should be 0.55 | |
| D. | For massive concrete structures which remain continuously under water, the water cement ratio by weight should be 0.65 | |
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