Question

In sand replacement method, if the mass of sand filling the calibrating container is 1450g and volume of calibrating container is 1000cm^3, then its buk density is_______ g/cm^3.

(a) 1450

(b) 1.45

(c) 45

(d) 17

This question was posed to me in an interview for internship.

The above asked question is from Determination of in-situ Density topic in section Index Properties Determination of Geotechnical Engineering I

Answer 1

Correct choice is (b) 1.45

The explanation is: Given,

Mass of sand filling the calibrating container M’=450g

Volume of calibrating container V=1000cm^3

∴Buk density ρ=M’/V=1450/1000

ρ=1.45 g/cm^3.