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| Q. |
The usual proportion of ingredients in plain cement concrete is |
| A. | Portland cement (1 part), clean sand (1 |
| B. | Portland cement (1 part), clean sand (3 to 16 parts) and coarse aggregate (1 |
| C. | Porland cement (1 part), clean sand and coarse aggregate (1 |
| D. | any one of the above |
| Answer» A. Portland cement (1 part), clean sand (1 | |
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