Question

The zero air voids line is also known as ___________

(a) density line

(b) saturation line

(c) specific gravity line

(d) unit weight line

I got this question in a job interview.

Asked question is from Modified Proctor Test and Harvard Miniature Compaction Test in portion Compaction of Geotechnical Engineering I

Answer 1

Correct option is (c) specific gravity line

The explanation is: When the voids present in between the soil particles are completely filled by the moisture or the water, then it has no air entrapped in it or has no air voids. Therefore, the zero air voids line is also known as saturation line.