the principle of test

the method of taking observations

the method of preparation of soil suspension

all of the above

effective size

uniformity coefficient

coefficient of curvature

none of the above

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