Consider the following statements:
(i) Ultimate consolidation for double drainage condition is more than single drainage condition.
(ii) Coefficient of consolidation is constant for the given soil.
(iii) Secondary consolidation is significant in fine grain soil.
(iv) Consolidation settlement more in silty soil than sandy soil.
Which of the above statements are correct?1
(i), (iii) and (iv)
2
(ii) and (iii)
3
(iii) and (iv)
4
(ii) and (iv)