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For a saturated soil sample, the specific gravity and void ratio is 2.7 and 1.2 respectively. What will be the saturated unit weight of the soil sample?
  • a)
    1.77 g/cc
  • b)
    1.5 g/cc
  • c)
    1.25 g/cc
  • d)
    1.98 g/cc
Correct answer is option 'A'. Can you explain this answer?
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For a saturated soil sample, the specific gravity and void ratio is 2....
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For a saturated soil sample, the specific gravity and void ratio is 2....
Calculation of Saturated Unit Weight:

Given data:
Specific gravity (Gs) = 2.7
Void ratio (e) = 1.2

Formula:
Saturated unit weight (γsat) = (1 + e) * Gs * γw

Calculation:
Given that specific gravity of the soil sample (Gs) = 2.7
Void ratio (e) = 1.2
Using the formula:
γsat = (1 + 1.2) * 2.7 * 9.81 (as unit weight of water (γw) = 9.81 kN/m³)
γsat = 2.2 * 2.7 * 9.81
γsat = 59.98 kN/m³
Converting kN/m³ to g/cc:
1 kN/m³ = 0.10197 g/cc
So, γsat = 59.98 * 0.10197 ≈ 1.77 g/cc
Therefore, the saturated unit weight of the soil sample is approximately 1.77 g/cc, which corresponds to option 'A'.
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For a saturated soil sample, the specific gravity and void ratio is 2.7 and 1.2 respectively. What will be the saturated unit weight of the soil sample?a)1.77 g/ccb)1.5 g/ccc)1.25 g/ccd)1.98 g/ccCorrect answer is option 'A'. Can you explain this answer?
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