Uniformity coefficient represents the shape of the particle size distribution curve.

For a well graded soil, both uniformity coefficient and coefficient of curvature are nearly unity.

A soil is said to be well graded if it has most of the particles of about the same size

none of the above

always less than 1

always equal to 1

equal to or less than 1

equal to or gi eater than 1

0 < PI < 7

7<PI< 17

17<PI<27

PI>27

liquid state

plastic state

semi-solid state

solid state

negative

zero

non-plastic (NP)

1