Question

The quantity of sand required for RCC (1:2:4) for 15 cubic metres of work is ___________

(a) 4.76 m^3

(b) 10.32 m^3

(c) 8.43 m^3

(d) 6.51 m^3

This question was addressed to me during an online exam.

I'm obligated to ask this question of Labour and Rate Analysis topic in section Rate Analysis, Estimation and Costing of Construction & Building Materials

Answer 1

Correct choice is (d) 6.51 m^3

To explain: Approximately 1.52 m^3 of dry concrete is required for 1 m^3 of wet concrete. The quantity of sand required for RCC (1:2:4) for 15 cubic metres of work is [2/(1+2+4)] x 1.52 x 15 m^3 i.e. 6.51 m^3.