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Q. |
For the construction of R.C.C. slabs, columns, beams, walls, etc. the grade of concrete mix used, is |
A. | 1 : 3 : 6 |
B. | 1 : 1½ : 3 |
C. | 1 : 2 : 4 |
D. | 1 : 1 : 2 |
Answer» C. 1 : 2 : 4 |
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