According to Atterberg, the soil is said to be of medium plasticity if the plasticity index PI is
A. 0 < PI < 7
B. 7< PI < 17
C. 17 < PI < 27
D. PI > 27
Answer: Option B
Solution(By Examveda Team)
According to Atterberg, the soil is said to be of medium plasticity if the plasticity index (PI) is7 < PI < 17.The plasticity index (PI) is a measure of the plasticity of a soil and is calculated as the difference between the liquid limit (LL) and the plastic limit (PL).
Soils with a PI between 7 and 17 are considered to have medium plasticity. This range indicates moderate changes in consistency with changes in moisture content.
Therefore, the correct option is 7 < PI < 17.
This Question Belongs to Civil Engineering >> Soil Mechanics And Foundation
7-17 (medium plastic)
0- NON PLASTIC
0-5 SLIGHTLY PLASTIC
5-10 LOW PLASTIC
10-20 MEDIUM PLASTIC
20-40 HIGH PLASTIC
>40 VERY HIGH PLASTIC
0-3= non plastic
3-15= slightly plastic
15-30= medium plastic
>30 = high plastic
so the ans must be= 17
0 non-plastic
0-7 low plastic
7-17 medium plastic
>17 high plastic
Answer should be 7-17
it is 7-17
It should be 17