Question

For 2.5 cm thick c.c. floor of 1:2:4 proportion, for 100 sq m, what amount of stone aggregate will be required?

(a) 5.20 cu m

(b) 1.20 cu m

(c) 2.40 cu m

(d) .20 cu m

I have been asked this question in an internship interview.

This intriguing question comes from Analysis of Rates of Cement Concrete in chapter Analysis of Rates of Civil Engineering Drawing

Answer 1

The correct choice is (c) 2.40 cu m

To explain I would say: Stone aggregate = 0.6*4 = 2.40 cu m.