In: Civil Engineering
(Time limited 70mins)
Q.1 A dried soil was subjected to particle size analysis with the following results:
Sieve (mm) | Mass Retained (g) | Mass Retained (%) | Percent Passing (%) |
---|---|---|---|
60.000 | 29.6 | MR1 | PP1 |
6.000 | 13.0 | MR2 | PP2 |
2.000 | 11.6 | MR3 | PP3 |
0.600 | 19.5 | MR4 | PP4 |
0.063 | 11.4 | MR5 | PP5 |
Pan | 3.7 | MR6 | PP6 |
Determine the percentage (%) for gravel (G):
Q.2 Determine the percentage (%) for sand (S):
Q.3 Classify the fine-grained portion of the soil sample by using the Plasticity Chart.
Provide your answer by using the format listed in the table below.
i.e. if the answer is CH, enter 3 as your answer.
No. | Classification | No. | Classification |
---|---|---|---|
1 | CL | 6 | ML |
2 | CI | 7 | MI |
3 | CH | 8 | MH |
4 | CV | 9 | MV |
5 | CE | 10 | ME |
Q.4 Determine the coefficient of uniformity (Cu):
Q.5 Determine the coefficient of curvature (Cc):
Q.6 Determine the effective size, D10 in mm:
Q.7 Determine the effective size, D30 in mm:
Q.8 Determine the effective size, D60 in mm:
Q.9 Determine the plastic index of the soil sample if the plastic limit (PL) and the liquid limit (LL) are 15.1 and 49.1, respectively:
Q.10
Classify the fine-grained portion of the soil sample by using the British Soil Classification System.
Provide your answer by using the format listed in the table below.
i.e. if the answer is SCL, enter 2021 as your answer.
No. | Classification | No. | Classification | No. | Classification | No. | Classification |
---|---|---|---|---|---|---|---|
1100 | GW | 2110 | SWM | 1015 | GME | 2013 | SMH |
1200 | GP | 2120 | SWC | 1021 | GCL | 2014 | SMV |
2100 | SW | 2210 | SPM | 1022 | GCI | 2015 | SME |
2200 | SP | 2220 | SPC | 1023 | GCH | 2021 | SCL |
1110 | GWM | 1011 | GML | 1024 | GCV | 2022 | SCI |
1120 | GWC | 1012 | GMI | 1025 | GCE | 2023 | SCH |
1210 | GPM | 1013 | GMH | 2011 | SML | 2024 | SCV |
1220 | GPC | 1014 | GMV | 2012 | SMI | 2025 | SCE |