21.Coefficient of consolidation of a soil is affected by

22.Which one of the following clays behaves like a dense sand ?

23.Degree of consolidation is

24.The total discharge from two wells situated near to each other is

25.Clay layer A with single drainage and coefficient of consolidation Cv takes 6 months to achieve 50% consolidation. The time taken by clay layer B of the same thickness with double drainage and coefficient of consolidation Cv/2 to achieve the same degree of consolidation is