For the construction of R.C.C. slabs, columns, beams, walls, etc. the – McqOptions

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1.	For the construction of R.C.C. slabs, columns, beams, walls, etc. the grade of concrete mix used, is
A.	0.043819444444444
B.	1 : : 3
C.	0.043101851851852
D.	0.042384259259259
Answer» D. 0.042384259259259

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