Question

Consider the following statements:
A well-graded sand should have
1. uniformity coefficient greater than 6
2. coefficient of curvature between 1 and 3
3. effective size greater than 1 mm
Which of these statements are correct?

• A. 1, 2 and 3
• B. 1 and 2
• C. 1 and 3
• D. 2 and 3

Answer 1

The correct option is B 1 and 2

For well graded sand $C_u>6and1<C_c<3$
For well graded gravel $C_u>4and1<C_c<3$