Sieve analysis is done on a soil sample and following observation were made:
| Size of sieve | % Retained |
| 4.75 mm | 36 |
| 75 micron | 90 |
Size particle for which 60% particles are finer = 5 mm
Size particle for which 30% particles are finer = 3 mm
Size particle for which 10% particles are finer = 1 mm
On further testing the finer particles, it was found that:
Liquid limit = 50% and Platic limit = 35%
Based on the above information, according to indian soil classification, the soil is
1
SW - SC
2
SP - SM
3
GW - GC
4
None of these