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If the water content of a fully, saturated soil mass is 100%, then the voids ratio of the sample is
- a)less than specific gravity of soil
- b)equal to specific gravity of soil
- c)greater than specific gravity of soil
- d)independent of specific gravity of soil
Correct answer is option 'B'. Can you explain this answer?
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If the water content of a fully, saturated soil mass is 100%, then the...
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Explanation:
Voids ratio is defined as the ratio of the volume of voids to the volume of solids in a soil sample. It is denoted by e.
e = Vv/Vs
where Vv is the volume of voids and Vs is the volume of solids.
If the soil sample is fully saturated, then the volume of voids is completely filled with water. Therefore, the volume of voids becomes zero and the voids ratio of the sample becomes:
e = 0/Vs = 0
This means that the voids ratio of a fully saturated soil sample is zero.
The specific gravity of soil is defined as the ratio of the mass of a given volume of soil solids to the mass of an equal volume of water at a temperature of 4°C. It is denoted by Gs.
Gs = Ms/Mw
where Ms is the mass of soil solids and Mw is the mass of an equal volume of water.
The specific gravity of soil is always greater than 1 because soil solids are denser than water.
Conclusion:
As the voids ratio of a fully saturated soil sample is zero, it is independent of the specific gravity of soil. Therefore, option D is incorrect. However, the specific gravity of soil is always greater than 1, and the voids ratio of a fully saturated soil sample is zero. Hence, the correct answer is option B, which states that the voids ratio is equal to the specific gravity of soil.
Voids ratio is defined as the ratio of the volume of voids to the volume of solids in a soil sample. It is denoted by e.
e = Vv/Vs
where Vv is the volume of voids and Vs is the volume of solids.
If the soil sample is fully saturated, then the volume of voids is completely filled with water. Therefore, the volume of voids becomes zero and the voids ratio of the sample becomes:
e = 0/Vs = 0
This means that the voids ratio of a fully saturated soil sample is zero.
The specific gravity of soil is defined as the ratio of the mass of a given volume of soil solids to the mass of an equal volume of water at a temperature of 4°C. It is denoted by Gs.
Gs = Ms/Mw
where Ms is the mass of soil solids and Mw is the mass of an equal volume of water.
The specific gravity of soil is always greater than 1 because soil solids are denser than water.
Conclusion:
As the voids ratio of a fully saturated soil sample is zero, it is independent of the specific gravity of soil. Therefore, option D is incorrect. However, the specific gravity of soil is always greater than 1, and the voids ratio of a fully saturated soil sample is zero. Hence, the correct answer is option B, which states that the voids ratio is equal to the specific gravity of soil.
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If the water content of a fully, saturated soil mass is 100%, then the voids ratio of the sample isa)less than specific gravity of soilb)equal to specific gravity of soilc)greater than specific gravity of soild)independent of specific gravity of soilCorrect answer is option 'B'. Can you explain this answer?
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