Void Ratio MCQ – Geotechnical Engineering

21. A soil sample is having a specific gravity 2.60 and a void ratio of 0.78. The water content required to fully saturate the soil at that void ratio would be

1. 10%
2. 30%
3. 50%
4. 70%

22. A fully saturated soil has a water content of 200 percent. If G = 2.6, the void ratio is

1. 1.3
2. 2.6
3. 5.2
4. None of the above

23. From among the range of numerical values given, select the range valid for the void ratio ‘e’,

1. e ≤ 0
2. 0 < e < 1
3. 0 ≤ e ≤ 1
4. 0 < e

24. If the water content of a fully saturated soil mass is 100%, then the void ratio of the sample is

1. less than specific gravity of soil
2. equal to specific gravity of soil
3. greater than specific gravity of soil
4. independent of specific gravity

25. Which of the following statement is correct?

1. 0 < e < 1
2. e can have a value greater than 1
3. e < 0
4. None of the above

26. A soil sample with specific gravity of solids 2.70 has a mass specific gravity of 1.84. Assuming soil to be perfectly dry, the void ratio of soil will be

1. 0.47
2. 0.57
3. 0.28
4. 0.70

27. A soil sample has a porosity of 50%, calculate voids ratio

1. 3.0
2. 1.0
3. 0.5
4. 0.33

28. A soil sample is partially saturated. Its natural moisture content was found to be 22% and bulk density 2 gm/c.c. If the specific gravity of the solid particles is 2.65 and the density of water is 1 gm/c.c, the void ratio of the sample is

1. 0.3825
2. 0.6165
3. 0.8188
4. 0.9122

29. The void ratio of a micaceous sand sample in the densest and loosest state are 0.4 and 1.2 respectively. The relative density of the soil for the in-place void ratio of 0.6 will be

1. 75%
2. 60%
3. 80%
4. 85%

30. Given for a sample of a river sand:

Void ratio at the densest state = 0.40
Void ratio at the loosest state = 1.20

Which one of the following correctly represents the relative density of a sample prepared with a void ratio of 1.0?

1. 12.5%
2. 25%
3. 87.5%
4. 75%